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Equipment Discussions >> Refractors

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timmbottoni
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Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
William Optics GTF 102 - first light barely
      #5700677 - 02/25/13 10:17 PM

Hi all,

I got the WO GTF 102, and will be attaching some pictures in a minute. I will preface by saying that it was hazy, and getting more cloudy by the minute when I shot the moon picture, and the scope had not reached cool down equilibrium yet. The views are stunning. I got some good looks at the full moon, as well as some not great looks at Jupiter and the Orion Nebula. I will be investing in a mount to do astrophotography at some point, and I think I will likely go with the iOptron iEQ45 but I need to wait to get that, and will decide after NEAF to see what comes out and how much I can afford to start with some very beginner astrophotography.

Timm


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timmbottoni
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Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5700679 - 02/25/13 10:18 PM Attachment (463 downloads)

Pic of the full moon

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5700680 - 02/25/13 10:18 PM Attachment (404 downloads)

Pic of the scope atop my EZ Touch

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5700682 - 02/25/13 10:18 PM Attachment (323 downloads)

Another pic

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5700683 - 02/25/13 10:19 PM Attachment (278 downloads)

Another pic still

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5700684 - 02/25/13 10:19 PM Attachment (250 downloads)

Thermomether works and is accurate

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Erskin71
professor emeritus


Reged: 12/13/10

Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5700732 - 02/25/13 10:52 PM

Congrats! Sure looks nice. Do you have the dew shield extended in these pics?

Mine gets here Thursday. Can't wait.


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5700738 - 02/25/13 10:56 PM

Yes, dew shield is extended. It has a very nice locking thumbscrew feature as well. WO pays great attention to the little details.

Timm


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nirvanix
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5700784 - 02/25/13 11:24 PM

Beautiful scope Timm. Glad to hear the optics are as sharp as its looks.

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timmbottoni
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Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: nirvanix]
      #5700791 - 02/25/13 11:28 PM

Quote:

Beautiful scope Timm. Glad to hear the optics are as sharp as its looks.




Thanks - I can't wait to get it out a night of GOOD seeing!

Timm


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zjc26138
Loved By All
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Reged: 02/24/05

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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5701298 - 02/26/13 10:01 AM

Beautiful scope Timm!

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Kon Dealer
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Reged: 01/05/11

Loc: Cambridge UK
Re: William Optics GTF 102 - first light barely *DELETED* new [Re: zjc26138]
      #5701319 - 02/26/13 10:09 AM

Post deleted by Scott in NC

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EdTheEdge
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Re: William Optics GTF 102 - first light barely *DELETED* new [Re: Kon Dealer]
      #5701422 - 02/26/13 11:10 AM

Post deleted by Scott in NC

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A. Orzechowski
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Reged: 09/30/04

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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5701653 - 02/26/13 01:10 PM

Hi Tim
Great to hear about your new edition... Just added the FLT98 to the collection. Please keep us informed about the performance.
Tony


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: EdTheEdge]
      #5701658 - 02/26/13 01:13 PM

I agree, lets not hijack the thread. I'm not an employee of WO, or a dealer of WO products, so I can't answer questions (even hypothetical ones) about anyone's problems they may have had. Those should go to WO or the selling dealer to determine if there is a defect, a user error, or some other reason that its not performing to expectations.

And while its no secret I have long been a fan of WO, I will do my best to review the scope including the focuser in a detailed and objective way. If you read any of my other reviews, you will hopefully find that I try hard to discover the pros and cons of all aspects of the product. I promise, I will do the same here.

It may take a while unfortunately, as we are now in the midst of getting pounded with another winter storm, or as better known here... "the curse of a new scope"

Edited by Scott in NC (02/27/13 08:17 PM)


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rockethead26
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Reged: 10/21/09

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Re: William Optics GTF 102 - first light barely new [Re: EdTheEdge]
      #5701824 - 02/26/13 02:49 PM

Tim,

Congrats on the 102. It's a gorgeous scope!

Edited by Scott in NC (02/27/13 08:20 PM)


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SteveG
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Reged: 09/27/06

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Re: William Optics GTF 102 - first light barely new [Re: rockethead26]
      #5701856 - 02/26/13 03:16 PM

Beautiful scope Timm! I'm looking forward to a future shoot-out between this and the TV101 variants. I know the focal length on the WO is longer, but it's nice to have another 4" flat field refractor on the market.

I think Kon just had some very bad luck with his WO experience. It is true that many aren't happy with the WO focusers - mostly imagers, but I think they are working hard to solve this.

Oh and Timm, thanks for the heads up on that tripod - I'm ordering one today!


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nirvanix
Carpal Tunnel


Reged: 06/07/07

Loc: Saskatoon, SK
Re: William Optics GTF 102 - first light barely new [Re: SteveG]
      #5701876 - 02/26/13 03:28 PM

That scope is so sexy like "the woman in red". I'd like to get a 6" ED doublet with the same trimmings.

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Kunama
professor emeritus


Reged: 10/22/12

Re: William Optics GTF 102 - first light barely new [Re: nirvanix]
      #5701893 - 02/26/13 03:39 PM

Sweet looking refractor ! Congratulations !!!!!!
Looking forward to hearing your thoughts once the skies clear.
(There's nothing quite like the excitement of bringing home a new baby and seeing the lights of the heavens through it)


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gustavo_sanchez
sage


Reged: 12/30/10

Loc: Puerto Rico, US
Re: William Optics GTF 102 - first light barely new [Re: Kunama]
      #5702047 - 02/26/13 04:46 PM

It sure looks great! I have the GT81 (though in blue ).

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Kon Dealer
professor emeritus


Reged: 01/05/11

Loc: Cambridge UK
Re: William Optics GTF 102 - first light barely new [Re: Kunama]
      #5702192 - 02/26/13 06:11 PM

Twice bitten, forever grumpy

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turtledude1
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Reged: 10/08/08

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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5702194 - 02/26/13 06:11 PM

I too have the new GTF 102 and still waiting for first light, maybe sometime in the next century or so I'm not holding my breath. I also own an older Zenithstar 80FD and let me say the crayford focuser is a piece of *BLEEP* and that's from first hand experience. But as I've said before the 2.5" R&P focuser seems to be a huge improvement but only time will tell. For now I'm very happy and WO isn't the only scope company out there to have a bad focuser good god look at Orion, Meade and Celestron.

I'm so down on WO that I bought a new WO Z71 APO last night and will have it the first of next week. So now I have four new scopes and two new mounts that haven't seen first light. If ever I get a clear weekend I've got my 50MP Hasselblad ready to go to work.


Russ


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: turtledude1]
      #5702344 - 02/26/13 07:43 PM

Thanks for all the compliments on the scope.

Kon - you are being a troll with your comments, please stop. I you don't have something constructive to add, or can recommend a technique that I can use for testing the focuser to see if it behaved like yours did, then please start your own thread and you can bash away.

SteveG - Thanks for the compliments on the scope, but I think you might have me confused with someone else, as I didn't mention a tripod.

And to everyone else - hang in there, I will test the scope and write a review. Hopefully this snow will be shortlived and I can get outside for some observing soon. I think this 5-7 inches of snow hitting our area is entirely my fault, since there is usually a direct correlation of bad weather to new astro gear.

Timm


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Kunama
professor emeritus


Reged: 10/22/12

Re: William Optics GTF 102 - first light barely new [Re: Kon Dealer]
      #5702610 - 02/26/13 10:32 PM

Timm, I was about to buy a WO FLT110 when the Tak came up. I looked through some WO scopes and was very impressed. Looking forward to your review of this beauty.



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SteveG
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5703532 - 02/27/13 01:37 PM

Quote:

Thanks for all the compliments on the scope.


SteveG - Thanks for the compliments on the scope, but I think you might have me confused with someone else, as I didn't mention a tripod.

Timm




I thought you mentioned it in another thread - Oberwerk Surveyoys tripod blems. I'm a huge fan of surveyors tripods, and the blem's at $120 is a bargain!

Here's a link: http://www.bigbinoculars.com/tradeins.htm


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: SteveG]
      #5703561 - 02/27/13 01:53 PM

Hi Steve - wasn't me, but thanks for the link. It looks nearly identical to the tripod on my WO EZ Touch mount, and would likely be a good match if I need to replace a leg, or something.

Timm


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Kon Dealer
professor emeritus


Reged: 01/05/11

Loc: Cambridge UK
Re: William Optics GTF 102 - first light barely *DELETED* new [Re: timmbottoni]
      #5703607 - 02/27/13 02:24 PM

Post deleted by Scott in NC

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Agatha
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Reged: 06/04/12

Loc: Coulee Region, Wisconsin
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5703613 - 02/27/13 02:30 PM

Timm,

Congratulations on your beautiful new telescope.

I look forward to your report on that beauty. And I am celebrating your wonderful new WO.

Have fun.

Best, Linda B.


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Kunama
professor emeritus


Reged: 10/22/12

Re: William Optics GTF 102 - first light barely new [Re: Agatha]
      #5703754 - 02/27/13 04:00 PM

William Optics certainly bring some colour to astronomy with their trim finishes, a far cry from the black n white of old.

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KWB
Postmaster
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Reged: 09/30/06

Loc: Westminster,Co Elev.5400 feet
Re: William Optics GTF 102 - first light barely *DELETED* new [Re: Kon Dealer]
      #5704012 - 02/27/13 06:41 PM

Post deleted by KWB

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microstar
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Reged: 01/05/08

Loc: Canada
Re: William Optics GTF 102 - first light barely new [Re: KWB]
      #5704035 - 02/27/13 06:49 PM

Beautiful looking scope Timm. Looking forward to your review of the optics and mechanics.
...Keith


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Scott in NCAdministrator
80mm Refractor Fanatic
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Reged: 03/05/05

Loc: NC
Re: William Optics GTF 102 - first light barely new [Re: microstar]
      #5704205 - 02/27/13 08:27 PM

This thread is now being returned to the forum. Let's please stay on topic and refrain from any further disrespectful comments. Thanks!

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: Scott in NC]
      #5704253 - 02/27/13 08:52 PM

Hi all,

One important thing to consider if you are interested in this design is that it is set up for astrophotography as the primary goal. The picture of the moon I took was with a WO 2" photo adapter, T-Ring connected to a Canon 60D with perfect focus, meaning I didn't have to rack the focuser all the way out. Because it is designed to not have to add extra extensions for photo use, it also means that you will be at the very inside limit of the focuser with a 2" diagonal for visual use with eyepieces. I found that my WO SPL eyepieces would not quite reach focus with the 2" diagonal, but the UWANs and 2" WO SWAN would. Using the 1.25" diagonal and all of the 1.25" eyepieces were fine. I knew the WO zoom would need the 1.25" diagonal, as that eyepiece also requires more inward focus.

Not really an issue, in my opinion, but certainly something to note, as its quite possible that other eyepieces would require the use of a 1.25" diagonal.

Once I can get more testing in I will let everyone know, and hopefully I will be able to let the scope cool down and do a really good star test. Because of the flattener, in the middle (right where you see the red ring in the middle) there is a large area of air that will require more time to cool before it will settle down, especially considering the current large difference between the inside temp and outside temp this time of year.

Timm


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Erskin71
professor emeritus


Reged: 12/13/10

Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5704388 - 02/27/13 10:12 PM

Good info. Thanks. I bought mine with a 80/20 split (AP/Visual) in mind. I'll do most of my visual after an AP session while I shoot darks.

I use the 60Da for AP. I've been needing to pick up a 2" adapter. Guess I will order one this weekend.


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5704404 - 02/27/13 10:15 PM

Quote:

Good info. Thanks. I bought mine with a 80/20 split (AP/Visual) in mind. I'll do most of my visual after an AP session while I shoot darks.

I use the 60Da for AP. I've been needing to pick up a 2" adapter. Guess I will order one this weekend.




Oooh a 60Da -

Post pics if you have any - would love to see your setup.

WO has a nice 2" photo adapter but any will work, I think.

I would love to hear what mounts people are using for AP with this scope or in general.

Timm

Edited by timmbottoni (02/27/13 10:25 PM)


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Erskin71
professor emeritus


Reged: 12/13/10

Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5704457 - 02/27/13 10:40 PM

Your to kind.

Flikr
http://www.flickr.com/photos/63171084@N05/8255676549/in/photostream/

I have a couple of wide field images on Flikr. I also have 1 pic of the 60Da on my C8. I think its the night I imaged M81 and M82 (which are on AstroBin)

Astrobin:
http://www.astrobin.com/users/ATX_71/

With the exception of M16 and M8 everything was shot with the 60Da.

I was thinking about one of these:
http://www.cncsupplyinc.com/index.htm?true2.htm

I may just go with the WO. I hate the thought of ordering something and it not working. Being that I can't just run to the store and buy what I need and all.

I use the Orion Atlas. Rock solid. When doing research it felt like the Atlas was the best/most mount in its class. Combined with the Orion SSAG and 50mm guide scope I almost never have issues. Almost because I do make mistakes

Edited by Erskin71 (02/27/13 11:00 PM)


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5704823 - 02/28/13 07:49 AM

Excellent pics! The photo adapter looks like a great idea.

The Atlas looks like a good choice, thanks for the info.


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5708716 - 03/02/13 12:28 PM

I want to test the focuser with different loads, or weights, to see how much it can handle.

Does anyone have some suggestions for weights?

My Canon 60D with the 2" photo adapter and T-ring weighs about 1Kg or 2.25lbs so I'll start with that, but what's the most weight I should test it with?

Thanks!

Timm


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5709605 - 03/02/13 09:37 PM

I was able to get in some viewing tonight. It was very cold outside, about 20 degrees F, and the wind chill was about 11, so I only stayed out an hour.

I was able to star test on Sirius though, and it is as perfect of a star test as my eyes can determine.

Not only that, but based on what I can see, the field of view is very flat. While this scope is designed for AP use, I can say without question that it makes an amazing visual scope as well.

Clear skies,

Timm


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Scott in NCAdministrator
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Reged: 03/05/05

Loc: NC
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5709633 - 03/02/13 09:58 PM

Nice report, Timm! Glad to hear that your new scope is working out so well for you.

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: Scott in NC]
      #5709684 - 03/02/13 10:35 PM

Quote:

Nice report, Timm! Glad to hear that your new scope is working out so well for you.




Thanks - the optics are amazing. Now I just need a good mount. I'm pretty sure its going to be the new the iEQ45.


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Erskin71
professor emeritus


Reged: 12/13/10

Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5709736 - 03/02/13 11:21 PM

Nice. I am getting ready to post my 1st light report in a few. I feel bad I wimped out after a little over an hour in the low 40's.

I agree the optics do look amazing.


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nirvanix
Carpal Tunnel


Reged: 06/07/07

Loc: Saskatoon, SK
Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5709916 - 03/03/13 04:02 AM

Timm I hope you do a thorough review of this scope and submit it to CN.

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: nirvanix]
      #5710422 - 03/03/13 11:13 AM

Quote:

Timm I hope you do a thorough review of this scope and submit it to CN.




I absolutely will - with pictures, and maybe a youtube video!

Timm


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Erskin71
professor emeritus


Reged: 12/13/10

Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5710477 - 03/03/13 11:40 AM

Oh ya have to have a youtube video these days

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Jim7728
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Reged: 04/10/05

Loc: Stoop Landing Observatory, NYC
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5710554 - 03/03/13 12:28 PM

Congrats on the GTF, fellas. I almost bought one, but blew my play money on my other hobby.

Questions:

Does the GTF-102 have enough back-focus for all your eyepieces and are there no signs of field curvature with your low power, wide field eyepieces?

Thanks!


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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: Jim7728]
      #5710805 - 03/03/13 02:56 PM

Quote:

Congrats on the GTF, fellas. I almost bought one, but blew my play money on my other hobby.

Questions:

Does the GTF-102 have enough back-focus for all your eyepieces and are there no signs of field curvature with your low power, wide field eyepieces?

Thanks!




I posted above about my eyepieces that I tried and which ones required a 1.25" diagonal, and others that worked with a 2" diagonal.

I spent some time looking at the Pleiades cluster (M45) which fills the view of my WO SWAN 33mm, and is too big but amazing in my WO UWAN 16mm. Both eyepieces showed significant curvature in my WO 80FD, and significant edge deterioration in with my C8. In the GTF 102 they are sharp and in focus to the edge with some edge false color showing. The lateral chromatic abberations are common in eyepieces, but honestly because the stars near the edge have never been in focus along with the stars in the middle, I never really paid much attention to it. I might try to take a 1 second shot tonight, as I don't have a tracking mount at the moment. It might be enough to demonstrate the flattness of the field at least.

Timm


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Jim7728
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Reged: 04/10/05

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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5711479 - 03/03/13 09:03 PM

Thanks! Sounds like a nice performer.

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timmbottoni
Carpal Tunnel


Reged: 08/25/05

Loc: W Chicago suburbs, IL USA
Re: William Optics GTF 102 - first light barely new [Re: Jim7728]
      #5713468 - 03/04/13 10:04 PM

Thanks - I'm convince of the new scope curse. Third major snow tomorrow since I got the new scope.

Timm


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Gasmansteve
newbie


Reged: 08/29/12

Loc: North Yorkshire UK
Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5819714 - 04/24/13 12:42 PM

Hi Guys
New to the forum and Hi to all from the UK !.
I found Timm`s thread last week and it got me interested in the GT102 only to find they were just available in the US but I`ve just found out today they will be available to European dealers ;-)) so I`m more than interested now and would be very keen to know how Timm is finding it so far in particular the weight the focuser can carry as I have an Atik 314 plus Atik usb filterwheel which is quite a chunk to hang off the focuser and my current C8 with Crayford just can`t cope with them. More info please Timm ;-)
Regards
Steve


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timmbottoni
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Re: William Optics GTF 102 - first light barely new [Re: Gasmansteve]
      #5821056 - 04/24/13 11:17 PM

Hi Steve,

I did some testing on the focuser and it can handle weight much better than any of the other WO focusers that I have experience with. I devised a way to test it using weights and it has no problem lifting 5 lbs and 10 lbs, and when it gets to 15 lbs it does OK, but I had to tighten up the friction or it would unwind. 15 lbs is seriously a LOT of weight and I can't imagine having anything that heavy.

Do you know how heavy your camera and filter is?

Take care,

Timm


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Gasmansteve
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5822856 - 04/25/13 07:17 PM

[quote
Do you know how heavy your camera and filter is?





Hi Timm
Haven`t weighed them but I`m pretty sure they are a lot less than 15lbs!. Getting very interested now as my dealer has offered to get a 102 in to bench test which I thought was an excellent thing to do. Must admit I always try things before buying them but not really possible with new scopes so the dealer going the extra mile is a pretty cool thing to do I think!. I`m looking at the WO ZS 71 to accompany it for guiding (same colour!).
Regards
Steve


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timmbottoni
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Re: William Optics GTF 102 - first light barely new [Re: Gasmansteve]
      #5823765 - 04/26/13 08:21 AM

Sounds great

There have been good reports on the 71 also.

I got my iOptron iEQ45 yesterday and it's a great match for this scope

Timm


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Costa
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5933641 - 06/21/13 08:30 PM

Has anyone taken any kind of photo through the GTF 102 yet ? Astrobin and Flickr are coming up short.

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Re: William Optics GTF 102 - first light barely new [Re: Costa]
      #5933760 - 06/21/13 09:47 PM Attachment (52 downloads)

Yes - nothing great though

Edited by timmbottoni (06/21/13 10:56 PM)


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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5933876 - 06/21/13 10:57 PM Attachment (53 downloads)

30 sec shot - not great but I'm just learning

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Kendahl
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5933935 - 06/21/13 11:46 PM

Timm:

I'm about to order a GTF102 and an iEQ45 mount. iOptron sells the two of them as a package for a bit less than they would cost separately. One thing they don't indicate (their tech support is supposed to tell me) is whether the model in the package has the DDG focuser.

I noticed in the photos that your scope does have the DDG focuser. How useful have you found it to be? If it's worth having, I will make sure to get it even if I have to pay more by ordering it from another vendor. If not, I will just take whatever iOptron provides.


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Re: William Optics GTF 102 - first light barely new [Re: Kendahl]
      #5934281 - 06/22/13 09:34 AM

Quote:

Timm:

I'm about to order a GTF102 and an iEQ45 mount. iOptron sells the two of them as a package for a bit less than they would cost separately. One thing they don't indicate (their tech support is supposed to tell me) is whether the model in the package has the DDG focuser.

I noticed in the photos that your scope does have the DDG focuser. How useful have you found it to be? If it's worth having, I will make sure to get it even if I have to pay more by ordering it from another vendor. If not, I will just take whatever iOptron provides.




Hi

To be honest, while I think it's cool, I don't use the digital readout. I have a Canon 60D and I use live view with 10x zoom to focus.

If I had to use my older Canon 20D without live view I think I would rely on it a lot.

It works well as long as you remember to check the zero position and everything is precisely the same in your setup.

Hope that helps.

Timm


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pubquiz
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5934567 - 06/22/13 12:45 PM

Beautiful scope Tim.

How does the flatness of field compare with scopes with a flattner as an add on?

Would imagine pretty good or better as it's matched exactly to the scope.

I have had a little Megrez72 for a few years and love it.....although it is a similar focuser to my others(just standard 2 speed crayford not R&P) it is so much better and smoother than my generic GSO/Smart Astronomy add on type focusers on other scopes, and it's even better to know now that WO are using R&P

The looks of of WO scopes with their red/blue/gold/ bits is absolutely stunning ...second only to the A&M scopes (At double the price) for sexyness in my opinion.If it's cloudy you could do worse than to just sit and stare at the scope

Tom


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Re: William Optics GTF 102 - first light barely new [Re: pubquiz]
      #5935242 - 06/22/13 08:00 PM

Thanks Tom - I honestly don't have anything to compare to but I have looked at my images at 100% and even higher and with my Canon 60D APS size sensor the stars are round out to the edge so I guess that is as good as it can get, right?

The new R&P focuser is really nice too.

Timm


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timmbottoni
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5935257 - 06/22/13 08:10 PM

I'm almost done with a full review - still have a few paragraphs to write. Watch for it soon!

Timm


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Erskin71
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5935416 - 06/22/13 09:49 PM Attachment (82 downloads)

Here is a shot of M51 taken a while back. Pretty much the full frame. Just clipped off a tad bit at the edges. Two subs of ten minutes each for this one.

Both my imaging scopes have built in FF so can't comment on using a separate FF.

Edited by Erskin71 (06/22/13 09:56 PM)


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Erskin71
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Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5935424 - 06/22/13 09:52 PM

And here is Makarians Chain (which is on Astro bin. Odd nothing came up for the WO GTF 102). This was about 20 minutes of data.



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Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5935430 - 06/22/13 10:02 PM

Your shots are fantastic - I am still very much learning my iEQ45 so it will be a while before I get shots this good.

Timm


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Erskin71
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5936050 - 06/23/13 09:28 AM

Thanks Timm. For 30 seconds that's a nice shot. Are you guiding?

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timmbottoni
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Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5936071 - 06/23/13 09:42 AM

Not guiding yet but working on getting what I need to try it soon

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PatHolland
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5936156 - 06/23/13 10:38 AM

Quote:

I'm almost done with a full review - still have a few paragraphs to write. Watch for it soon!

Timm




Timm, I very much look forward to the review. I've had my GTF102 for almost 4 months now but haven't had a chance to do anything with it as of yet. I haven't actually done any DSO work since the Supernova in M95 (15 months ago).


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Kendahl
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Re: William Optics GTF 102 - first light barely new [Re: PatHolland]
      #5940055 - 06/25/13 04:11 PM

I just ordered an iEQ45 mount and plan to order a GTF102. Three questions about the GTF102:

So far, Agena is the only dealer I have found that claims to have the GTF102 with DDG focuser in stock. Are there any other sources?

What are you using to attach your Canon camera to the GTF102? (I have a 350D.) Agena has a Baader 2 inch T adapter with provision for a filter. One of the listed filters is clear for protection of the camera sensor only. Good idea or not?

Is the William 2 inch quartz dielectric diagonal the best one to buy?

I haven't decided about eyepieces yet. (For the time being, I can get by with the 1-1/4 inch eyepieces from my old scope.) In addition to the William eyepieces, I am considering ones from Explore Scientific. The latter are supposed to approach Televue quality for less than half the price. Besides the GTF102, they would be used with an Orion 10 inch f/4.7 Newtonian and, sometime in the future, a 9.25 inch Celestron EdgeHD.


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Re: William Optics GTF 102 - first light barely new [Re: Kendahl]
      #5940647 - 06/25/13 11:09 PM

Hi

Hope these answers help...

Not sure about which dealers stock it, I got mine direct from WO

I have a WO 2" photo adapter and Meade Canon T-Ring but I think any will work.

A 2" diagonal might not allow all 1.25" eyepieces to rack in far enough to reach focus. I have a WO 1.25" dielectric diagonal that works fine. Any will work, but be forewarned that the 2" diagonal might not work with everything.

Hope that helps,

Timm


Quote:

I just ordered an iEQ45 mount and plan to order a GTF102. Three questions about the GTF102:

So far, Agena is the only dealer I have found that claims to have the GTF102 with DDG focuser in stock. Are there any other sources?

What are you using to attach your Canon camera to the GTF102? (I have a 350D.) Agena has a Baader 2 inch T adapter with provision for a filter. One of the listed filters is clear for protection of the camera sensor only. Good idea or not?

Is the William 2 inch quartz dielectric diagonal the best one to buy?

I haven't decided about eyepieces yet. (For the time being, I can get by with the 1-1/4 inch eyepieces from my old scope.) In addition to the William eyepieces, I am considering ones from Explore Scientific. The latter are supposed to approach Televue quality for less than half the price. Besides the GTF102, they would be used with an Orion 10 inch f/4.7 Newtonian and, sometime in the future, a 9.25 inch Celestron EdgeHD.




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Erskin71
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Re: William Optics GTF 102 - first light barely new [Re: Kendahl]
      #5940669 - 06/25/13 11:27 PM

I use this 2 inch adapter to connect my 60Da to mine.

http://www.telescopeadapters.com/index.htm?rpa.htm


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timmbottoni
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Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5940989 - 06/26/13 07:55 AM

I just noticed that WO has come out with something similar.

http://www.williamoptics.com/wo_shop/catalog/product_info.php?products_id=626

Cool

Timm

Quote:

I use this 2 inch adapter to connect my 60Da to mine.

http://www.telescopeadapters.com/index.htm?rpa.htm




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johnadig
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5941109 - 06/26/13 09:36 AM

Quote:

I'm almost done with a full review - still have a few paragraphs to write. Watch for it soon!

Timm




I'm eagerly awaiting!


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timmbottoni
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Re: William Optics GTF 102 - first light barely new [Re: johnadig]
      #5947241 - 06/29/13 10:03 PM

Quote:

Quote:

I'm almost done with a full review - still have a few paragraphs to write. Watch for it soon!

Timm




I'm eagerly awaiting!




I'm also thinking of doing a YouTube video review - might be kind of fun. Is anyone interested in that sort of review?

Timm


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Mark9473
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5947511 - 06/30/13 03:45 AM

Yes, definitely!

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johnadig
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5948056 - 06/30/13 01:23 PM

Quote:

Quote:

Quote:

I'm almost done with a full review - still have a few paragraphs to write. Watch for it soon!

Timm




I'm eagerly awaiting!




I'm also thinking of doing a YouTube video review - might be kind of fun. Is anyone interested in that sort of review?

Timm




Absolutely! I ordered one last week, should have it Wednesday!


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timmbottoni
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Re: William Optics GTF 102 - first light barely new [Re: johnadig]
      #5948890 - 06/30/13 11:34 PM

Awesome! You're going to love it!

Timm


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David E
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Re: William Optics GTF 102 - first light barely new [Re: Erskin71]
      #5949151 - 07/01/13 06:16 AM

Quote:

Here is a shot of M51 taken a while back.





Looks like you also captured a couple of dim galaxies in the upper right quadrant.


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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5949152 - 07/01/13 06:18 AM

Beautiful, Tim! Looking forward to your full reviews, weather permitting. Central NC has been frustrating for viewing this past year.

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Daviety
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Re: William Optics GTF 102 - first light barely new [Re: timmbottoni]
      #5949396 - 07/01/13 10:27 AM

Quote:

I'm almost done with a full review - still have a few paragraphs to write. Watch for it soon!

Timm




Hows that review going Tim ? YT Video would be great
Suspense is killing me
This scope is just becoming available in the UK and I'm
seriously thinking of getting one.

Dave


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Re: William Optics GTF 102 - first light barely new [Re: Daviety]
      #5976833 - 07/17/13 09:09 PM

Hi all,

I completed my review. I sent it into CloudyNights so hopefully they can load it up soon.

Timm


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