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Equipment Discussions >> Refractors

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Strgazr27
Vendor - Deep Space Mods and Composites
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Loc: StonyHill Observatory
Re: Anything about the Astro Tech 111 mm ? new [Re: frodriguez]
      #2184053 - 02/11/08 04:45 PM

Quote:

no blue left in the image...




I just opened the image up in PSCS2 and it shows levels of 28:24:20 as far as color balance goes. Certainly not a lack of blue as far as the numbers go.

If the info is not good I don't know what to say at this point. We have 4 images posted, 3 of which show a nice flat field, pinpoint stars and no blue bloat. We have one that shows the bloat and yet we seem to be fixated on that image. It's also obvious that the image has been overprocessed in it's original form.

The info is here for people to see what it can do and make a decision off of it and info from others.

You make the choice ultimately.

CS's

--------------------
Bobby

StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG

YAHOO TMB 130SS Group

Astronomy Technologies Yahoo Group


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Strgazr27
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Re: Anything about the Astro Tech 111 mm ? new [Re: LLEEGE]
      #2184059 - 02/11/08 04:46 PM

Quote:

Quote:

no blue left in the image...



That's the blue bloat PS action tool.




OK now even I have to admit that was funny.

--------------------
Bobby

StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG

YAHOO TMB 130SS Group

Astronomy Technologies Yahoo Group


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LLEEGEModerator
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Re: Anything about the Astro Tech 111 mm ? new [Re: Clive Gibbons]
      #2184123 - 02/11/08 05:12 PM

Quote:


IIRC, Roland explained that he didn't provide individual wave ratings for each scope, for basically the same reason Astronomics mentioned.


Snip
edited for TOS violations.

--------------------
"Okay! You draw the straws. I'm-a taking the parachute."



Edited by LLEEGE (02/11/08 06:03 PM)


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waterskies
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Reged: 08/18/07
Posts: 93
Re: Anything about the Astro Tech 111 mm ? new [Re: Clive Gibbons]
      #2186221 - 02/12/08 01:16 PM

The difference is, with AP, the guys MANUFACTURE the lens, and they are not normally a company that will sell you a lemon, right? Different story with a company that imports their lenses from the Far East or wherever.
It justs sounds silly that someone tells me, I check your scope with an interferometer, but I do not give you a report, nor do I tell you how good it is! Just my two cents


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waterskies
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Reged: 08/18/07
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Re: Anything about the Astro Tech 111 mm ? new [Re: Strgazr27]
      #2186236 - 02/12/08 01:28 PM

Quote:



The TMB92SS is not over priced and is actually a very good deal considering what you will get when they arrive.





That's the only problem, WHEN!
Been following these two lines since July last year.. Still I do not know ONE customer who has bought one off the shelf.. I have read back in various forums, the first "30-60 days" announcements where done in 2006...
But probably you are right, IF it does perform as well as they WRITE, then it shouldn't be overpriced.

Quote:


The 111 looks to be a phenomenal deal. I'm surprised that noone has commented on how flat the field is with the 111. There is VERY little curvature present. This is not easy to do with a triplet design.





What do you mean, not easy? Isn't it easier than with a doublet?? I was under the impression that triplets correct the field better than doublets..

Quote:


It's funny, the TMB130SS went through the same ringer when it was first released and look now. IF you can find one for sale they command the same price as when bought new and have gotten nothing but rave reviews comparing them to any 130-140mm scope available.

CS's




Same, I do not know many people who actually bought any of these 130s, and the dealers never have stock...
Just check the status of the SS line or the AT line on Astronomics web, and then you'll see what I mean..

So the rave reviews would be more founded if there actually were enough scopes under the skies! Anyone knows how many were sold so far? Got any pics taken with the 130 you can link me to?


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AstronomicsAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: waterskies]
      #2186271 - 02/12/08 01:43 PM

Untrue. If the scope doesn't work, it doesn't ship. Plenty of companies have an interferometer and don't give you a report with the scope.
TMB 92 is a day away. Then the 2.7" FT is any day as well.

--------------------
Michael Bieler

I live vicariously through myself.

Father and Husband

Owner
www.astronomics.com
www.astronomytechnologies.com
www.cloudynights.com


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dougspeterson
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Reged: 09/01/04
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Re: Anything about the Astro Tech 111 mm ? new [Re: waterskies]
      #2186295 - 02/12/08 01:55 PM

Quote:

sounds silly that someone tells me, I check your scope with an interferometer, but I do not give you a report




Other silly companies that do that are Questar, TMB, Takahashi.

--------------------
18" Dob
12" SCT
8" TMB F6 + Chromacor
6" F6 APM/LZOS Fluorite triplet, 32", 32lbs
2ea. 6mm singlets, one blind
"--Granted, that's a worse case scenario. The destruction might in fact be ... limited to our own galaxy."


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Strgazr27
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Re: Anything about the Astro Tech 111 mm ? new [Re: waterskies]
      #2186461 - 02/12/08 03:21 PM

A triplet offers better color correction and a flatter field. It is not an easy thing to provide both to a very high degree of performance. Perhaps this is more clear a statement.

How many images shot with the 130SS would you like to see?

There's These

Or perhaps This one

Or scroll halfway down to see the ones I shot Here

Enough 130's under the skies? You need to do a bit more research. There are at least 50+ in the hands of very happy owners. Click on the link in my signature to go to my TMB130SS Yahoo group for example.

CS's

--------------------
Bobby

StonyHill Observatory
Skywatcher EQ6 Pro (On it's way)
AT 130 F/6 Prototype
Royce 10" f/4 Astrograph (Under Construction)
Self Modded 40D
70-200 F2.8 L IS
SSAG

YAHOO TMB 130SS Group

Astronomy Technologies Yahoo Group


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frodriguez
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Re: Anything about the Astro Tech 111 mm ? new [Re: Strgazr27]
      #2186499 - 02/12/08 03:42 PM

strgazr, are you some kind of promoter for the TMB SS series? it seems that in every discussion regarding this line of refractors, you seem to always find yourself either defending and/or promoting the product. I don't mean to question your impartiality, but it would be nice to know if there's some sort of bias in your communiques.

--------------------
Francisco

TMB 100mm f/8 triplet apo
Universal Astronomics UniStar Deluxe w/ 7" saddle
Sokkia green heavy wood tripod
Televue 7mm Nagler T6
Televue 5mm Nagler T6
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Televue 2" Everbrite diagonal
Televue 2"-to-1.25" high-hat adapter for 2" diagonal
Stellarvue F50W2 9x50 RACI white deluxe finder
Astrozap Baader white-light solar filter
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jrcrillyAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: frodriguez]
      #2186522 - 02/12/08 03:54 PM

Quote:

strgazr, are you some kind of promoter for the TMB SS series? it seems that in every discussion regarding this line of refractors, you seem to always find yourself either defending and/or promoting the product.




Not to let things wander too much farther off topic, but not too many folks have experience with that model yet - so the lucky few of us who do have experience share it when appropriate.

--------------------
John C
Urban Observatory
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
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waterskies
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Reged: 08/18/07
Posts: 93
Re: Anything about the Astro Tech 111 mm ? new [Re: Strgazr27]
      #2186670 - 02/12/08 05:02 PM

Bob, altough 80 % of the pics I saw are yours, and yes, they are good!, I did find a few more -you are right-, looking around the members of your SS group it seems that at least 4 or 5 other people got one ..

But the impression I get from reading CN is that these two lines (SS and AT) (which seem to be different only for marketing, as in, made in the same place and with TMB label to allow for different pricing of the two), are actually rather over-hyped due to the Astronomics connection to CN... It is as clear as it can be, but it does not mean that they are not good scopes! Just that they are over hyped.. But if I want an over hyped scope I "get" a BO.. If you check on Astromart, you get a more balanced opinion (and I think better information because people like Roland are there to give advice).
I could not find any info on the 111mm on Astromart and almost nil in other forums.
The AT 111 is the one I am most interested in. I recently found out it is a TMB design, so I think it is basically the younger brother of the 130SS. There are still doubts on the Japanse origin (?) of the 130SS, but who cares, as long as it performs well.. I cannot afford it anyway!

What do you make of this shot:

http://sky.prohosting.com/mikedodd/Rosette-SE-large.html

Is it pinched or something?


Definitely this one is better but shows that the scope does need a field flattener...
http://homepage.mac.com/jprovi57/.Public/TMB%20130SS%20ngc2244.jpg

That said, I agree that for the price it is a GOOD performer, if you only can get one eventually! As I wrote before waiting is normal for a good 5" but I am not sure I want to wait much longer for a 4" with all the offering out there off the shelf. As to the interferometer, I still think that they should at least say what is the minimum standard.


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jrcrillyAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: waterskies]
      #2186680 - 02/12/08 05:05 PM

Quote:

But the impression I get from reading CN is that these two lines (SS and AT) (which seem to be different only for marketing, as in, made in the same place and with TMB label to allow for different pricing of the two),




The optics are certainly not "made in the same place".

--------------------
John C
Urban Observatory
A&M/Astreya 76mm F/6 APO
TMB/LOMO 80mm F/7.5 APO
Tak FSQ-106N F/5 APO
Meade 178ED F/9 "APO"
Meade ETX-125AT
C14
Teeter 20" F/3.8 truss Newt w/ServoCat
CI-700, NJP, GPDX/SS2KPC, CG5-GT
ST-10XME, DSI Pro


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AstronomicsAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: waterskies]
      #2186700 - 02/12/08 05:14 PM

The 111 does not use the same glass as the TMB 130. They are entirely different scopes. I don't really get the connection as we don't post here very much or tell people what to say about products we carry and sell.

--------------------
Michael Bieler

I live vicariously through myself.

Father and Husband

Owner
www.astronomics.com
www.astronomytechnologies.com
www.cloudynights.com


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AstronomicsAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: Astronomics]
      #2186704 - 02/12/08 05:15 PM

Bob is also right on the number of people that have the scopes. It is much greater than four or five.

--------------------
Michael Bieler

I live vicariously through myself.

Father and Husband

Owner
www.astronomics.com
www.astronomytechnologies.com
www.cloudynights.com


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waterskies
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Reged: 08/18/07
Posts: 93
Re: Anything about the Astro Tech 111 mm ? new [Re: jrcrilly]
      #2186714 - 02/12/08 05:20 PM

How do you and I know that?

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waterskies
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Re: Anything about the Astro Tech 111 mm ? new [Re: Astronomics]
      #2186723 - 02/12/08 05:24 PM

I didn't want to suggest that they use the same glass! Sorry.

They are designed by the same person right? As to the hype, I was referring to the number of reviews from CN-related users...


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waterskies
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Re: Anything about the Astro Tech 111 mm ? new [Re: Astronomics]
      #2186728 - 02/12/08 05:28 PM

Ok sorry about that... I was only referring to the number of people who SAY they have one in internet forums.. Of course that may be unrepresentative of the real total! But I do get the feeling they are certainly MORE than the owners of a AT 111mm...

What about my point about the RMS of the AT111 or 130? Can you give us some AVERAGE figures since you test every single one of them?


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AstronomicsAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: waterskies]
      #2186730 - 02/12/08 05:28 PM

The 130 and 111 are designed by the same person. I don't know about hype still. There are some CN users that have had prototypes of the instruments for months so they can make sure they work in all different conditions. I am glad they like the product well enough to talk about it. I love seeing flag wavers for their respective brands, it just means the people have passion for their hobby in my eyes.

--------------------
Michael Bieler

I live vicariously through myself.

Father and Husband

Owner
www.astronomics.com
www.astronomytechnologies.com
www.cloudynights.com


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AstronomicsAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: Astronomics]
      #2186746 - 02/12/08 05:41 PM

The interferometer was purchased after the first batch of 130 SS scopes shipped. However, the scopes have a required minimum from the late Tom Back of 1/6th wave and 95 strehl. Thas has been his minimums since he started his company a decade or so ago. We have had reports through the roddier program of 1/10th wave and 99 strehl on more then one lens.

I believe the roddier test of the 111 brought around 1/8th wave and 98 strehl, but I could be wrong as I don't have the data on my desk.

--------------------
Michael Bieler

I live vicariously through myself.

Father and Husband

Owner
www.astronomics.com
www.astronomytechnologies.com
www.cloudynights.com


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AstronomicsAdministrator
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Re: Anything about the Astro Tech 111 mm ? new [Re: Astronomics]
      #2186760 - 02/12/08 05:48 PM

As the AT-111 has not shipped, you are correct. There are many more owners of the 130.

--------------------
Michael Bieler

I live vicariously through myself.

Father and Husband

Owner
www.astronomics.com
www.astronomytechnologies.com
www.cloudynights.com


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