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Equipment Discussions >> Refractors

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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Talk me out of buying a Televue 76
      #5868433 - 05/17/13 11:25 PM

I have an opportunity to pick up a used Televue 76 at a very good price. I have always been a one-scope sort of guy, but the TV 76 is a very attractive travel and grab-N-go scope to compliment my "much" larger TV 102. I would use it when travelling to dark skies (the cottage, camping, etc), or in the winter when setting up the 102 and Great Polaris mount is too much to bear. I have a Gibraltar head and some aluminium tripod legs that would be used to mount the scope.

My concerns: 1) would I use my TV 102 less due to the convenience of this little guy, and in so doing I would miss out on the deeper grasp of the larger scope? 2) do I really need a second scope, and will the views be disappointing compared to the 102 so that I don't use the 76 enough?

There are several people here who have similar scopes in their collection, and many of them seem to favour the smaller one. I would appreciate any thoughts/experiences they may have.


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SeattleScott
Pooh-Bah


Reged: 10/14/11

Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868480 - 05/17/13 11:49 PM

Can't you just get an alt az mount for the 4"? If I were adding to your collection I would be looking at adding aperture not subtracting.

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Ziggy943
Post Laureate


Reged: 08/11/06

Loc: Utah
Re: Talk me out of buying a Televue 76 new [Re: SeattleScott]
      #5868491 - 05/17/13 11:55 PM

Don't buy it.

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chaoscosmos
sage
*****

Reged: 01/26/13

Loc: Mission Viejo CA
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868493 - 05/17/13 11:56 PM

Sounds like you already know how you'd use it, so if it's a good price you could sell it again for, why not? I would think a small scope could be handy for various reasons, some of which you've named.

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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: SeattleScott]
      #5868502 - 05/18/13 12:00 AM

The 102 itself is actually too big for me to travel with once we pack the car with all of the kid's stuff Loaded in it's case will all eyepieces and accessories it is not all that small, it occupies half our trunk space with the tripod and mount.

I do have an alt/az mount for it (the same Gibraltar).

I have chased aperture in the past, but sold my larger scope (a 7" Mak) in favour of the 4" refractor. I'm not going back there, at least until we retire to a dark-sky location where a big dob will be worthwhile.


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chaoscosmos
sage
*****

Reged: 01/26/13

Loc: Mission Viejo CA
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868520 - 05/18/13 12:09 AM

I have a TV101 and for me, just for a travel scope, I might at some point get an Orion ST80 I could use on my camera tripod. Apparently there are differences between the TV76 and Ranger- I'm not sure if one or the other is more desirable.

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Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868529 - 05/18/13 12:15 AM

Quote:

There are several people here who have similar scopes in their collection, and many of them seem to favour the smaller one. I would appreciate any thoughts/experiences they may have.





I have more than one scope...

My two favorite refractors are my NP-101 and a William Optics 80mm F/7 FD, similar to the choice that faces you but the not quite as extreme.

I think it makes good sense to get the TV-76, it's a nice, compact scope that's a great performer. It's good for birding and terrestrial viewing, the 102 is too clumsy for such endeavors, it's also much handier for travel.

Jon



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stevew
Now I've done it


Reged: 03/03/06

Loc: British Columbia Canada
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868537 - 05/18/13 12:20 AM Attachment (62 downloads)

Quote:

I have always been a one-scope sort of guy,



No such thing.....


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Scott BeithAdministrator
SRF
*****

Reged: 11/26/03

Loc: Frederick, MD
Re: Talk me out of buying a Televue 76 new [Re: Jon Isaacs]
      #5868541 - 05/18/13 12:21 AM

From a guy who owns 3", 4" and 5" refractors - I say buy it.

A small scope like the TV76 will complement your TV102 instead of competing with it.

You will eventually want a separate mount for each.


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stevew
Now I've done it


Reged: 03/03/06

Loc: British Columbia Canada
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868554 - 05/18/13 12:29 AM

Oopps... Sorry.
Don't buy another telescope.
You may find you go out twice as often.


Steve


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Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Talk me out of buying a Televue 76 new [Re: chaoscosmos]
      #5868569 - 05/18/13 12:38 AM

Quote:

Apparently there are differences between the TV76 and Ranger- I'm not sure if one or the other is more desirable.




The Ranger and the Pronto were 70mm F/6.9 refractors, the name tag on the side says ED but apparently it's FK-5 which basically provides the same level of color correction as a crown-flint achromat. The Pronto was the original "little scope that could", a 70mm with a 2 inch focuser. I had one, great scope but the chromatic aberration bugaboo would raise it's head at opportune moments.

The Ranger used the same optics but had a 1.25 inch Helical focuser, more compact than the Pronto. Both are quite good optical, just not apos.

The TV-76 is essentially a Pronto with 76mm ED/apo objective.

Jon


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ultralord
member
*****

Reged: 09/09/05

Loc: Middle Tennessee
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868590 - 05/18/13 12:59 AM

Don't buy it . I was reading a post below that even the best refractors suffer astigmistism just from body heat radiating to the eyepiece. Just let me know if there is anything else I can talk you out of buying.

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MooEy
member


Reged: 10/02/07

Re: Talk me out of buying a Televue 76 new [Re: ultralord]
      #5868638 - 05/18/13 01:56 AM

My 71fl would image around 300mm while my 125sd would image at 500mm. Trust me, you need both scopes.

~MooEy~


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Erik Bakker
Post Laureate
*****

Reged: 08/10/06

Loc: The Netherlands, Europe
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5868684 - 05/18/13 02:39 AM

TV102 + TV76 = more quality time under the stars

Buy it and enjoy


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genethethird
sage
*****

Reged: 01/05/10

Loc: NC
Re: Talk me out of buying a Televue 76 new [Re: Erik Bakker]
      #5868715 - 05/18/13 03:12 AM

Since I got the 102 I just use the 76 even more.

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la200o
Carpal Tunnel


Reged: 09/09/08

Loc: SE Michigan, USA
Re: Talk me out of buying a Televue 76 new [Re: genethethird]
      #5868894 - 05/18/13 07:40 AM

Buy it immediately!

Bill


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: la200o]
      #5868938 - 05/18/13 08:23 AM

You guys all failed miserably, I made an offer on the TV 76

We'll see if I get it, my fate is not my own now....


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Spyke
Carpal Tunnel
*****

Reged: 07/22/03

Loc: Scotland
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5869005 - 05/18/13 09:08 AM

If owning it becomes too problematic, I can help solve that problem...

Ant


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Scott in NCAdministrator
80mm Refractor Fanatic
*****

Reged: 03/05/05

Loc: NC
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5869014 - 05/18/13 09:20 AM

Quote:

You guys all failed miserably, I made an offer on the TV 76

We'll see if I get it, my fate is not my own now....




I think you made the right choice.


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Jon Isaacs
Postmaster
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Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5869206 - 05/18/13 12:06 PM

Quote:

You guys all failed miserably, I made an offer on the TV 76

We'll see if I get it, my fate is not my own now....




I forgot to mention the one big reason not to buy the TV-76:

.................

Sorry, I still can't remember but when I do I will let you know.

Jon


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nanjason
super member
*****

Reged: 03/23/10

Loc: Southeastern PA, USA
Re: Talk me out of buying a Televue 76 new [Re: Jon Isaacs]
      #5869970 - 05/18/13 07:11 PM

I have an NP101 and a TV76 (and an 8" dob), and I say buy it. You won't regret it. When I'm at home I mostly use my NP101, but the TV76 is absolutely perfect for traveling. They serve complimentary purposes, and if you have the means it's wonderful having options. Best of luck!

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Jeff Gardner
member


Reged: 09/12/11

Re: Talk me out of buying a Televue 76 new [Re: Jon Isaacs]
      #5870224 - 05/18/13 08:59 PM

No question buy the TV 76, the scope's wide field ability will compliment the TV 102 and provide you with a great travel scope.

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Tom and Beth
Post Laureate


Reged: 01/08/07

Loc: Tucson, AZ
Re: Talk me out of buying a Televue 76 new [Re: Jeff Gardner]
      #5872181 - 05/19/13 06:39 PM

Well, the TV-76 is too close to a 400MM Lens if you are into photography, making it redundant. Get the TV-85 instead.

Oh well, you already bought the TV-76. A good traveling hardcase for it is the Pelican 1510. With the divider and cargo net for the top lid you can pack the scope with rings and diagonal attached, a few EPs, and room for 3 days of clothes.

Good choice in scopes. I have both the 76 and 102 as well.

Edited by Tom and Beth (05/19/13 06:40 PM)


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: Tom and Beth]
      #5874857 - 05/20/13 10:35 PM

I didn't get the TV 76. No response from the seller to my offer, and the ad has been pulled.

Well, I'm $700 richer now, and my mind is more clearly made up that I need a travel scope. Yes, I need one.

Thanks everyone for your feedback.


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MooEy
member


Reged: 10/02/07

Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5874905 - 05/20/13 10:56 PM

borg 71fl?

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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: MooEy]
      #5892964 - 05/30/13 05:56 PM

Whelp, I caved and placed an order for a new Televue 76! I thought myself foolish for considering it, then last night we had an unexpected clearing of the skies in the evening. I could not get motivated to haul out the TV 102 and GPDX mount with all of the associated miscellanea that is needed to get set up. I reflected on how quickly I could have been out there with the TV 76 and my little unpowered alt/az mount, and the value of having this as a second scope became clear.

My "inverse aperture fever" trend continues.

Pictures to follow....!


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Erik Bakker
Post Laureate
*****

Reged: 08/10/06

Loc: The Netherlands, Europe
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5893013 - 05/30/13 06:28 PM

That's exactly how those small powerhouses fit into real life Ian

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GOLGO13
Carpal Tunnel


Reged: 11/05/05

Loc: St. Louis area
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5893075 - 05/30/13 07:11 PM

Awesome! I'd love to get one also. I unfortunately will probably need to wait for a good used one, though I'd really prefer to get one new. Enjoy!

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la200o
Carpal Tunnel


Reged: 09/09/08

Loc: SE Michigan, USA
Re: Talk me out of buying a Televue 76 new [Re: GOLGO13]
      #5893309 - 05/30/13 09:26 PM

Have you seen Neil English's review of the TV 76 on this site and in his book, "Choosing and Using a Refractor Telescope"?

Bill


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: la200o]
      #5893375 - 05/30/13 11:38 PM

Yes, I did. This review, amongst others I considered went far towards convincing me to get the 76. Considering his afterword on the long-focus achromat, I had no interest in a slow achromat to fill the slot that the TV 76 will. Portability was a key consideration. An 80 mm F/11 would offer little more portability that my TV 102, and the 102 should meet or exceed the performance of the long-focus achromat.

It is my opinion that Televue has hit the visual-observing nail on the head with their series of ED doublets: the 76, 85, and the now-discontinued 102. These three scopes seem to have the perfect balance of aperture and focal ratio so as to retain visual near-APO performance (I have never noticed CA in my 102) while maximizing FOV and portability. Their owners almost universally love them. I have had my 102 as my sole scope for about a decade and have no desire to part with it, I will pass it on to my son when the time is right. I am looking forward to adding the 76 to the stable.


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Gregg Carter
member


Reged: 08/11/10

Loc: Northern New Mexico
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5893422 - 05/31/13 12:04 AM

Ian,

That is why I have my TV-76. It's a great grab-and-go telescope. The build quality is fantastic, as are the optics. I love everything about it. I think you will love yours, too.

Gregg


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JoeBftsplk
sage
*****

Reged: 09/26/07

Loc: North of the Fingerlakes-NY
Re: Talk me out of buying a Televue 76 new [Re: Gregg Carter]
      #5893490 - 05/31/13 01:00 AM

Great choice! You won't be sorry. Astronomy isn't the only thing they're good at.

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chaoscosmos
sage
*****

Reged: 01/26/13

Loc: Mission Viejo CA
Re: Talk me out of buying a Televue 76 new [Re: JoeBftsplk]
      #5893640 - 05/31/13 04:23 AM

The TV 85 is a pretty easy to handle size too, but the 76 yields the widest fields of view of the TV scope lineup.

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ianatcn
sage


Reged: 05/26/10

Loc: Hampshire, UK
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5893787 - 05/31/13 08:41 AM

Ian,

I have owned my TV76 for more than 10 years. Other 'scopes have come and gone but the 76 has remained. During the day it sits on the Gib mount set up with Ha equipment for solar viewing and at night it is a great cross-over from binoculars and when seeing or weather conditions prevent getting the big guns out.

It is the 'scope that goes on holiday with me and can easily be packed for a night out at dark sky reserve.

Enjoy your new telescope!


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tomchris
professor emeritus


Reged: 12/22/10

Loc: Connecticut, U.S.A.
Re: Talk me out of buying a Televue 76 new [Re: ianatcn]
      #5893889 - 05/31/13 09:49 AM

'Had the 76 and was so impressed by it, I ended up buying a TV-85 for just a little more aperture . You'll really like it!

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nanjason
super member
*****

Reged: 03/23/10

Loc: Southeastern PA, USA
Re: Talk me out of buying a Televue 76 new [Re: tomchris]
      #5894112 - 05/31/13 11:43 AM

Awesome! You'll love it. Last weekend the family and I and several friends of our kids were out roasting marshmallows and I brought the 76 out for them to check out the moon and Saturn, which was a big hit. Perfect for those things - quick grab and go, and for travel. Enjoy it!

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csrlice12
Postmaster
*****

Reged: 05/22/12

Loc: Denver, CO
Re: Talk me out of buying a Televue 76 new [Re: nanjason]
      #5894124 - 05/31/13 11:48 AM

Hmmm, lot's of support FOR buying it....SO....

DON'T BUY IT!

There, see how easy that was....


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dscarpa
Post Laureate
*****

Reged: 03/15/08

Loc: San Diego Ca.
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5894519 - 05/31/13 03:17 PM

Glad you pulled the trigger on it! I think it will come in handy as a travel scope. I've got a Lumicon 80mm Super Finder and the views with my 24 Pan ect makes for a RFT-9.25 vs finder-9.25. At F/3.75 it's CA city for lunar-planetary not so the TV 76. I suspect you'll be happy with it for that. My WO ZS-110 which is about the size of your TV 102 makes for a easy carry out at 35lbs on my Voyager-Oberwerk tripod but it's not a small scope. David

Edited by dscarpa (05/31/13 03:21 PM)


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jrbarnett
Eyepiece Hooligan
*****

Reged: 02/28/06

Loc: Petaluma, CA
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5894930 - 05/31/13 07:46 PM

"Talk me out of buying a Televue 76"

Don do eet. Eets too small. Eets only a doublet. Ju already have a TV-102. Save the money and get an alt-az mount to use with that scope for grab and go.

Oh, wait. You bought it. Never mind.

- Jim


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: jrbarnett]
      #5895023 - 05/31/13 08:56 PM

I must be getting old, because I have an alt/az mount and I still don't consider the TV 102 to be grab and go.

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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5924580 - 06/16/13 10:47 PM

I picked the new scope up this weekend. The forecast is looking promising for me to get it out this week for the inaugural voyage.

Pics to follow....


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5930021 - 06/19/13 08:37 PM Attachment (37 downloads)

Requisite pic attached. I need to upgrade to a wood tripod, keeping my eyes open for one on the used market. I think I'll limit use to 1.25" eyepieces to keep Gibraltar head balancing issues to a minimum. The TFoV with a 24mm Pan is 3.2 degrees. Plenty wide enough for most purposes.

Edited by Mentor (06/19/13 08:41 PM)


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5930028 - 06/19/13 08:43 PM Attachment (40 downloads)

Bonus pic.

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la200o
Carpal Tunnel


Reged: 09/09/08

Loc: SE Michigan, USA
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5930759 - 06/20/13 08:07 AM

You should be able to use 2" ep's on your TV 76 mounted on a Gibraltar with no problemo; it's just a matter of adjusting the tension screws.

Bill


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nanjason
super member
*****

Reged: 03/23/10

Loc: Southeastern PA, USA
Re: Talk me out of buying a Televue 76 new [Re: la200o]
      #5930994 - 06/20/13 10:16 AM

I have both a telepod mount/tripod and also a Gibraltar mount/tripod, and I routinely use the TV76 with the telepod, for EP's up to the gigantic 31 Nagler with no troubles. But absolutely, the Gibraltar is even better. Only issue is you lose some of the ease of travel. Speaking of which, I'll be taking my little 76 along on a family trip to Colorado in about a week, with the Telepod. It's just perfect for things like this. In the soft case along w/ the scope I'll be carrying on all my EP's including the 31 Nagler.

Clear skies!


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nanjason
super member
*****

Reged: 03/23/10

Loc: Southeastern PA, USA
Re: Talk me out of buying a Televue 76 new [Re: nanjason]
      #5931001 - 06/20/13 10:19 AM

Couple pic's I took of the little guy:

http://www.jasondietrichphotography.com/p718483600/h5f6b550e#h5f6b550e

http://www.jasondietrichphotography.com/p718483600/h5f6b5460#h5f6b5460


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: nanjason]
      #5932336 - 06/21/13 12:10 AM

I cleanly split Epslon Bootis with this little scope tonight. The main challenge was finding a way to crank the mag up high enough - I wound up using a 9mm EP with 1.8x and 2.0x barlows stacked. This got the magnification up to 192x. The view was great, the secondary was on the incomplete first diffraction ring of the primary. Fragments of a second ring could be seen at times when seeing degraded.

The other challenge was colour. The small aperture makes seeing any colour in doubles difficult to discern. I note a big difference even compared to the view in the Tele Vue 102.


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la200o
Carpal Tunnel


Reged: 09/09/08

Loc: SE Michigan, USA
Re: Talk me out of buying a Televue 76 new [Re: Mentor]
      #5932593 - 06/21/13 07:47 AM

I have so much trouble with color in doubles. . . I'm always happy and surprised when I agree with, say, Sissy Haas in her "Double Stars for Small Telescopes."

I too have a TV 102 and 76 and I would agree that the difference between 3 and 4 inches is significant. Having said that, I am constantly surprised at how high I can go with the 76, given good seeing; it's an amazing little scope and has put my "need" for a Questar 3.5 on hold.

Bill

Edited by la200o (06/21/13 07:48 AM)


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azure1961p
Postmaster
*****

Reged: 01/17/09

Loc: USA
Re: Talk me out of buying a Televue 76 new [Re: la200o]
      #5932616 - 06/21/13 08:07 AM

I've read more than one report where even 70mm in a pronto or Ranger is a dead heat with a Questar 3.5. Of course though there's more to a Q than the view but it is a sobering fact that some small refractors beat it - based again on some user reports.

That 76 looks like quite the jewel.

Pete


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Mentor
professor emeritus


Reged: 09/30/10

Loc: Ontario, Canada
Re: Talk me out of buying a Televue 76 new [Re: azure1961p]
      #5932899 - 06/21/13 12:11 PM

I had an ETX-90 back in the day. I can't possibly compare resolution and image brightness now with the TV 76, but I expect that they would be similar. I know that the TV 102 was substantially better in a number of areas.

Where the TV 76 will really excel compared to the Mak are in true field of view, and also with the unobstructed stellar diffraction patterns with minimal energy displaced into the rings. That always bothered me in my Mak.

I would expect the Mak might have a slight edge on planets

Edited by Mentor (06/21/13 12:13 PM)


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