Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

Equipment Discussions >> Classic Telescopes

Pages: 1 | 2 | 3 | (show all)
starman876
Post Laureate
*****

Reged: 04/28/08

Loc: VA
Are smaller scopes better than bigger scopes
      #6345508 - 01/30/14 04:14 PM

I thought we should do the inverse of is bigger better. Now let's find out why we prefer a smaller scope most of the time versus that big light bucket. I know it is ease of use. But what is it about that smaller scopes optics you like so much.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rdandrea
Carpal Tunnel
*****

Reged: 06/13/10

Loc: Colorado, USA DM59ra
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6345523 - 01/30/14 04:25 PM

Takes me three trips out the door to use my bigger scopes. One trip to use the smaller scopes. Consequently, unless I need the big scope for something specific, I am much more likely to drag out a small scope.

Post Extras: Print Post   Remind Me!   Notify Moderator  
choran
Pooh-Bah
*****

Reged: 12/28/12

Re: Are smaller scopes better than bigger scopes new [Re: rdandrea]
      #6345566 - 01/30/14 04:45 PM

My experience with very small scopes is extremely limited, but so far it seems to me that they darken the sky better than larger ones. They certainly have their obvious limits, but I happen to like the view characterized by a very dark sky and tiny pinpoint stars. I would not want to have a very small scope as my only one, but they definitely have a purpose. It's just a very pretty, sort of intimate, view. Not to mention the ease to setup and transport. The only problem I've encountered are the very small finders typically involved. I view through my left eye, so most are awkwardly positioned for me.

Post Extras: Print Post   Remind Me!   Notify Moderator  
amicus sidera
Post Laureate
*****

Reged: 10/14/11

Loc: East of the Sun, West of the M...
Re: Are smaller scopes better than bigger scopes new [Re: rdandrea]
      #6345572 - 01/30/14 04:47 PM

Bigger scopes usually have smaller fields of view, are more affected (aesthetically, at least) by poor seeing, take longer to acclimate to the outside air temperature, are heavier and generally more unwieldy.

Beyond a certain point, light grasp and resolution aren't everything; small can be (and often is) beautiful-er.


Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Post Laureate
*****

Reged: 04/28/08

Loc: VA
Re: Are smaller scopes better than bigger scopes new [Re: amicus sidera]
      #6345598 - 01/30/14 05:00 PM

Now these answers are much more freindly to deal with
seems you guys really like your small scopes and I can understand why. I really enjoy taking a quality scope to view with outside with one hand. And those small scopes do provide you with beautiful pin point stars.


Post Extras: Print Post   Remind Me!   Notify Moderator  
patg43
member
*****

Reged: 12/20/13

Loc: Union, Washington
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6345604 - 01/30/14 05:04 PM

We like the planetary detail through the baby refractor. It is stunning!

Post Extras: Print Post   Remind Me!   Notify Moderator  
wfj
Pooh-Bah
*****

Reged: 01/10/08

Loc: California, Santa Cruz County
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6345627 - 01/30/14 05:10 PM

Smaller scopes are better to travel with.

My daughter went to French Polynesia last semester and had a scope weight budget of 6 pounds for telescope, eyepieces, mount and tripod. Couldn't even take a 6" mirror alone for that.

She then came back and we went for MAVEN's launch at Canaveral - we were viewing the launch from the NASA Causeway at 40x. No way security would let us truck in her SCT with fork and locking triangle tripod


Post Extras: Print Post   Remind Me!   Notify Moderator  
CharlieB
Carpal Tunnel
*****

Reged: 12/11/07

Loc: Southern NH
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6345711 - 01/30/14 06:07 PM

There is something very pleasing to my eye when I see a nice double star with almost planetary-like Airy disks surrounded by perfect diffraction rings. Eps Lyrae though a very good 50mm scope is gorgeous. Albireo is stupendous. You just don't get the same kind of view from a larger scope with more resolution.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Geo31
Pooh-Bah
*****

Reged: 01/28/13

Loc: Kingwood, TX
Re: Are smaller scopes better than bigger scopes new [Re: CharlieB]
      #6345727 - 01/30/14 06:16 PM

Questar über alles...

Post Extras: Print Post   Remind Me!   Notify Moderator  
Geo31
Pooh-Bah
*****

Reged: 01/28/13

Loc: Kingwood, TX
Re: Are smaller scopes better than bigger scopes new [Re: Geo31]
      #6345731 - 01/30/14 06:18 PM

I don't know about you, but every night I'd sure like to look through the 82" I looked through on Sunday night.

Post Extras: Print Post   Remind Me!   Notify Moderator  
John_Gillies
Vendor - Earthwin Optical
*****

Reged: 04/23/03

Loc: Ontario, Canada
Re: Are smaller scopes better than bigger scopes new [Re: Geo31]
      #6345795 - 01/30/14 06:52 PM

As much as I like having a 102 on top of the 14" for wide field views, I just can't get into a small scope set-up. I'd much rather set up the 15X70 binoculars on a tripod and use two eyes. I've always been amazed at how much one can find with reasonable size binos, and how quickly!

Post Extras: Print Post   Remind Me!   Notify Moderator  
SpooPoker
sage
*****

Reged: 06/04/13

Loc: North Bay CA
Re: Are smaller scopes better than bigger scopes new [Re: John_Gillies]
      #6345877 - 01/30/14 07:38 PM

It would not surprise me if, on average, smaller telescopes were optically of better quality than their larger brethren.

Beyond that, usability / portability is a small scope's main advantage. That and they are better catered for 1 - 2" seeing conditions.


Post Extras: Print Post   Remind Me!   Notify Moderator  
rolo
Pooh-Bah
*****

Reged: 01/14/07

Loc: GA, USA
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6345968 - 01/30/14 08:32 PM

...not much you can do with three to four inches. I have never seen a small refactor outperferform a larger quality scope....ever!

Edited by rolo (01/30/14 09:13 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Mr Greybush
scholastic sledgehammer
*****

Reged: 05/16/13

Loc: Virginia
Re: Are smaller scopes better than bigger scopes new [Re: rolo]
      #6345975 - 01/30/14 08:35 PM



Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: SpooPoker]
      #6346053 - 01/30/14 09:19 PM

Some interesting comments.. I don't think of small scopes being better than large scope or large scopes being better than small scopes, I think that small scopes are better suited for certain tasks, large scopes are better suited for certain other tasks. One of my little saying: Small scopes for large objects, large scopes for small objects...

I do spend a lot of time looking through my smaller scopes, my two favorites are an 80mm F/7 apo and a 101mm F/5.4 apo made by Televue. This pair is pretty much big brother and little brother, both have very good, color free optics, both have focal lengths about 550mm and are capable of fields of view in excess of 4 degrees.. the 80mm is smaller and handier, the 101mm is a bit bigger and more capable and optically more perfect. Both perform admirably, for their apertures, at low magnifications and high, cool quickly and are easier to setup... they represent less effort in preparation...

There are small scopes that are a real hassle to setup and use...There are small scopes that do not provide wide fields of view, the classic 3 inch F/16 refractor with the 0.965 inch focuser is good for about 1.0 degrees....

A few comments:

- The darkness of the background sky is determined by the exit pupil and is pretty much independent of aperture. Smaller scopes are generally worked closer to the limit so small exit pupils are more commonly used.

- I find double stars are quite wonderful in all scopes. Some pairs are better suited for smaller scopes, some pairs are better suited for larger scopes. The mention was made of the double-double (2.3 arc-seconds) in a 50mm, this is the Dawes limit for a 50mm. A very similar view to this would be a 0.46 arc-second double in a 250mm scope. The conditions required for such a split are not so common but when every thing comes together, such splits are very memorable and every bit as pristine and perfect as the wider split in the smaller scope.

- Seeing and small scopes. Small scopes are less affected by poor seeing because they are less capable. But 1-2 arc-second seeing definitely favors a relatively large scope, something on the order of 12 inches, for planetary viewing.

Something else: Small scopes are easier to push to the limit. Objects at the limit are larger, easier to find and working at the limit does not require such favorable conditions.

Another of my little sayings:

I like small scopes, I like big scopes.. both are good.

Jon


Post Extras: Print Post   Remind Me!   Notify Moderator  
actionhac
Post Laureate
*****

Reged: 08/09/08

Loc: Seattle
Re: Are smaller scopes better than bigger scopes new [Re: Mr Greybush]
      #6346057 - 01/30/14 09:20 PM Attachment (6 downloads)

Yes smaller is better this lens has my helper exhausted!

Post Extras: Print Post   Remind Me!   Notify Moderator  
youngamateur42
Pooh-Bah
*****

Reged: 11/21/12

Loc: La Verne, CA
Re: Are smaller scopes better than bigger scopes new [Re: actionhac]
      #6346087 - 01/30/14 09:37 PM

While my little 70mm is no classic, I can say I have seen so much through it. The trained eye can reveal much detail in smaller scopes, more than you would think. My 70 is nice because it weights about 6.5 pounds, so at end of the night it's a quick teardown. The views are of course aesthetically pleasing, the long focal length provides a contrasty. These statements could be made about most of the small 60-80mm range classics, I'm just using mine as an example.

Post Extras: Print Post   Remind Me!   Notify Moderator  
fjs
scholastic sledgehammer
*****

Reged: 03/25/13

Loc: Olympic Peninsula, USA
Re: Are smaller scopes better than bigger scopes new [Re: actionhac]
      #6346118 - 01/30/14 09:50 PM

Robert, I love all your shop assistants, and medical helpers!

Post Extras: Print Post   Remind Me!   Notify Moderator  
KWB
Postmaster
*****

Reged: 09/30/06

Loc: Westminster,Co Elev.5400 feet
Re: Are smaller scopes better than bigger scopes new [Re: rolo]
      #6346119 - 01/30/14 09:52 PM

Quote:

...not much you can do with three to four inches. I have never seen a small refactor outperferform a larger quality scope....ever!



I firmly believe in different size and design telescopes for different tasks.

For scanning a star rich constellation like Scorpius at low power using Nagler type eyepieces,an 80mm telescope operating at F/6 of F/7 would be my tool of choice. If that were my main target for the evening,a 10 inch Dobsonian wouldn't even be close to coming out of the house.

IMO no one telescope or just one telescope design/type can cover all the bases for my viewing.


Post Extras: Print Post   Remind Me!   Notify Moderator  
rcwolpert
professor emeritus


Reged: 08/13/12

Loc: San Jose, CA
Re: Are smaller scopes better than bigger scopes new [Re: youngamateur42]
      #6346127 - 01/30/14 09:57 PM

Yes, at times. On the 14th I had quadruple bypass heart surgery. Tonight, 16 days later, I was able to place my 4" Vixen f/6.5 on the Losmandy mount (that stays outside), and enjoy a few minutes with Jupiter before clouds rolled in. The 10 lbs of the Vixen is the most I'm allowed to lift at this time. It great to have a few small scopes around. They certainly have their place.

- Bob


Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: rolo]
      #6346143 - 01/30/14 10:02 PM

Quote:

...not much you can do with three to four inches. I have never seen a small refactor outperferform a larger quality scope....ever!




Interesting.. not my experience at all. But then, I don't think in terms of one telescope outperforming another, I think in terms of one telescope being better suited for a certain task, better at providing a certain view. The right scope for the job. As I said in my previous post, "Small scopes for large objects, big scopes for small objects."

For example, the large scale nebulosity that extends from the region of the Veil Nebula up past the Cocoon nebula is unseen in even a medium aperture scope because the scale is simply too large, the contrast gradients overflow the eyepiece of even the widest field views. A small (80mm) fast (F/5) refractor operating at a large exit pupil and a 6 degree TFoV shows this region in stunning detail..

If you haven't seen a small scope show you things that are impossible with a large scope, well, I don't why that would be, honestly I can't explain it, the only thing I can think of is that you are using the smaller scopes for tasks better suited for larger scopes. Or maybe you don't have the right small scopes.

This is not to say that there are objects that are impossible to see with a 3 or 4 inch scope and better suited for a large aperture scope, this is also true.. Telescopes are like a photographer's lenses.. Some are good for one thing, some are good for another.

Jon Isaacs


Post Extras: Print Post   Remind Me!   Notify Moderator  
fjs
scholastic sledgehammer
*****

Reged: 03/25/13

Loc: Olympic Peninsula, USA
Re: Are smaller scopes better than bigger scopes new [Re: rcwolpert]
      #6346147 - 01/30/14 10:04 PM

Quote:

Yes, at times. On the 14th I had quadruple bypass heart surgery.




Yikes!

Quote:

Tonight, 16 days later, I was able to place my 4" Vixen f/6.5 on the Losmandy mount (that stays outside), and enjoy a few minutes with Jupiter before clouds rolled in. The 10 lbs of the Vixen is the most I'm allowed to lift at this time. It great to have a few small scopes around. They certainly have their place.




That's great!


Post Extras: Print Post   Remind Me!   Notify Moderator  
Usquebae
super member
*****

Reged: 06/11/13

Loc: 43 N, 73 W
Re: Are smaller scopes better than bigger scopes new [Re: actionhac]
      #6346190 - 01/30/14 10:26 PM

I don't know what qualifies as "smaller" and "bigger." My largest aperture scope is 8", which some CNers would call puny. My 4" scope is a meter long, which doesn't exactly seem small. Anyway, last night for the first time I had those two out together. At the 8" dob I found myself hopping from target to target, swapping EPs, testing filters, etc. etc. The only EP I used in the F/10 achro was a 31 Luminos, which gave beautiful views of approx. 32x, 2.6 degrees, and 3.1mm exit pupil that I could not tear myself away from. And it didn't much matter what the scope was pointed at, though I admit it tended to gravitate towards M35. Views through that EP are of similar size in my Z8 (38x, 2.2 deg) but comparatively sloppy at F/6 and with a much brighter background sky. Maybe a finer 8" mirror, parracor, and T6 31mm could compete on open clusters and aimless wanderings, but I'm happy with what I've got.

Edited by Usquebae (01/30/14 10:38 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
choran
Pooh-Bah
*****

Reged: 12/28/12

Re: Are smaller scopes better than bigger scopes new [Re: rcwolpert]
      #6346210 - 01/30/14 10:39 PM

Way to go, Bob, quick comeback! You'll be as good as new in no time and be back to doing all the things you like.

Post Extras: Print Post   Remind Me!   Notify Moderator  
DocFinance
sage
*****

Reged: 01/14/14

Loc: Clear Lake, Texas
Re: Are smaller scopes better than bigger scopes new [Re: KWB]
      #6346230 - 01/30/14 10:47 PM

Quote:

Quote:

...not much you can do with three to four inches. I have never seen a small refactor outperferform a larger quality scope....ever!



I firmly believe in different size and design telescopes for different tasks.





I agree. But I'm always biased toward the scope that gets used the most. Those tend to be smaller for me.


Post Extras: Print Post   Remind Me!   Notify Moderator  
rcwolpert
professor emeritus


Reged: 08/13/12

Loc: San Jose, CA
Re: Are smaller scopes better than bigger scopes new [Re: choran]
      #6346341 - 01/30/14 11:54 PM

Quote:

Way to go, Bob, quick comeback! You'll be as good as new in no time and be back to doing all the things you like.




Thank you! Thanks to Frank also! There's a lot years of observing left to do! I just wanted to point out one of the great things about small scopes - even when you are not at your peak strength, you can still get out and enjoy the sky. That is a pretty significant plus.

- Bob


Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: DocFinance]
      #6346523 - 01/31/14 05:11 AM

Quote:

Quote:

Quote:

...not much you can do with three to four inches. I have never seen a small refactor outperferform a larger quality scope....ever!



I firmly believe in different size and design telescopes for different tasks.





I agree. But I'm always biased toward the scope that gets used the most. Those tend to be smaller for me.




I probably use smaller scopes more frequently than larger scopes but in terms of hours at the eyepiece, I log more hours at the eyepiece with larger scopes because the sessions are longer.

Regarding clusters in an 8 inch versus a 4 inch... the same cluster should show more detail in the larger scope though the comparison should probably be made at equal exit pupils. A good comparison is M38 and the nearby Ngc1907. 1907 comes to life in a larger scope.

Jon


Post Extras: Print Post   Remind Me!   Notify Moderator  
Usquebae
super member
*****

Reged: 06/11/13

Loc: 43 N, 73 W
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6347063 - 01/31/14 11:53 AM

Quote:

Regarding clusters in an 8 inch versus a 4 inch... the same cluster should show more detail in the larger scope though the comparison should probably be made at equal exit pupils. A good comparison is M38 and the nearby Ngc1907. 1907 comes to life in a larger scope.

Jon




The equivalent exit pupil (3.1mm) will mean my 18mm UWA in the Z8, which makes for more than double the magnification and less than half the TFoV compared to the 31 Luminos in C102. Although the bigger scope and higher mag "should show more detail" per arc second, there's gonna be a lot less seconds in the window, right? And might that not make the difference on some objects, like M35? Sometimes the frame makes the painting, and occasionally it even costs more.

But probably I don't know what I'm talking about.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: rcwolpert]
      #6347124 - 01/31/14 12:21 PM

Quote:

Quote:

Way to go, Bob, quick comeback! You'll be as good as new in no time and be back to doing all the things you like.




Thank you! Thanks to Frank also! There's a lot years of observing left to do! I just wanted to point out one of the great things about small scopes - even when you are not at your peak strength, you can still get out and enjoy the sky. That is a pretty significant plus.

- Bob




Bob:

I am glad to hear everything went well for you.

And smaller scopes are good because the energy required is so much less. I twisted my knee yesterday running for the bus so it looks like I won't be using my big scope this weekend but something smaller.

Jon


Post Extras: Print Post   Remind Me!   Notify Moderator  
rcwolpert
professor emeritus


Reged: 08/13/12

Loc: San Jose, CA
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6347236 - 01/31/14 01:25 PM

Thank you, Jon. Each day I get stronger, but it's likely to be 2 weeks before I can lift the C11. I'm so happy to have a Unitron and a 4" Vixen. If not, I'd be having "Observing Withdrawal Systems", just as bad as Coffee Withdrawal!

I'm sorry to hear about your knee. Once again, small scopes come to the rescue. I picture myself in another 30 years, in a wheel chair at the eyepiece end of a Unitron doing variable star measurements. I just got a note from the AAVSO thanking me for 33 years of data taking. Time goes fast!


Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: rcwolpert]
      #6347484 - 01/31/14 03:55 PM

Quote:

Thank you, Jon. Each day I get stronger, but it's likely to be 2 weeks before I can lift the C11. I'm so happy to have a Unitron and a 4" Vixen. If not, I'd be having "Observing Withdrawal Systems", just as bad as Coffee Withdrawal!

I'm sorry to hear about your knee. Once again, small scopes come to the rescue. I picture myself in another 30 years, in a wheel chair at the eyepiece end of a Unitron doing variable star measurements. I just got a note from the AAVSO thanking me for 33 years of data taking. Time goes fast!




Congratulations on the 33 years, that is impressive...

That dream of the future.. I will be 66 here is less than 2 months, I would like to think that I will still be healthy and strong enough to still enjoy my biggest scope. But if I can't, I have a small collection of decreasing apertures that will hopefully carry me through.

Jon


Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Post Laureate
*****

Reged: 04/28/08

Loc: VA
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6347653 - 01/31/14 05:18 PM

My biggest scope is the C14 and I still handle it easily. And I have a year on you. Working out is the key to staying healthy. Oh yes, and do not take too much asprin.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6347759 - 01/31/14 05:58 PM Attachment (2 downloads)

Quote:

My biggest scope is the C14 and I still handle it easily. And I have a year on you. Working out is the key to staying healthy. Oh yes, and do not take too much asprin.




My big scope is a little bigger than a C-14. Right now, my concern with my knee is not so much setting up the scope as climbing up and down the ladder.

Jon


Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Post Laureate
*****

Reged: 04/28/08

Loc: VA
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6347785 - 01/31/14 06:16 PM

Looks like it is time for one of those electric lifts to get you up and down to the eyepiece. Or maybe one of those rolling stairs like you see at Home Depot. That would work pretty good. Lot better than a ladder

Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6347854 - 01/31/14 06:51 PM

Quote:

Looks like it is time for one of those electric lifts to get you up and down to the eyepiece. Or maybe one of those rolling stairs like you see at Home Depot. That would work pretty good. Lot better than a ladder




I have a rolling folding ladder that's got a couple mods to make it easier and more comfortable. But it still a pretty big scope.

Jon




Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Post Laureate
*****

Reged: 04/28/08

Loc: VA
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6347877 - 01/31/14 07:05 PM

I've seen bigger
Beautiful scope. Wish I had a scope like that. However, I have no place to put it.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6347929 - 01/31/14 07:36 PM

Quote:

I've seen bigger
Beautiful scope. Wish I had a scope like that. However, I have no place to put it.




I had no interest in a scope that big, I was pretty happy with my 16 inch. But then we bought a place with dark skies and a place to store a big scope and I realized I should start looking for a big scope.

You are right, the ladder is the key making the scope practical. With a smaller scope a good chair makes it all work, with a big scope its the ladder.

Jon


Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Post Laureate
*****

Reged: 04/28/08

Loc: VA
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6347936 - 01/31/14 07:43 PM

Maybe in my next house I will make sure it comes with a garage. I drool when I see these 20" scopes. The image scale in that scope must be overwhelming with that size mirror.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rcwolpert
professor emeritus


Reged: 08/13/12

Loc: San Jose, CA
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6348229 - 01/31/14 10:57 PM

Wow! Nice scope, Jon! I'm salivating here!

Post Extras: Print Post   Remind Me!   Notify Moderator  
GeneT
Ely Kid
*****

Reged: 11/07/08

Loc: South Texas
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6348235 - 01/31/14 10:59 PM

This question is why a lot of people are quite to live in the 10 to 14 inch Dob world. I ended up with a 12.5 inch, F5 Portaball, which is just the right size for me.

Post Extras: Print Post   Remind Me!   Notify Moderator  
starman876
Post Laureate
*****

Reged: 04/28/08

Loc: VA
Re: Are smaller scopes better than bigger scopes new [Re: GeneT]
      #6348238 - 01/31/14 11:01 PM

The portaball is good. I have a 12.5 " also. However, come on guy, 20" , tell me you don't at least have one for a while.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Datapanic
Carpal Tunnel
*****

Reged: 10/17/09

Loc: Tucson, Arizona
Re: Are smaller scopes better than bigger scopes new [Re: starman876]
      #6348369 - 02/01/14 01:00 AM

This thread belongs in the Beginners Forum!

Post Extras: Print Post   Remind Me!   Notify Moderator  
Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Are smaller scopes better than bigger scopes new [Re: GeneT]
      #6348532 - 02/01/14 05:11 AM

Quote:

This question is why a lot of people are quite to live in the 10 to 14 inch Dob world. I ended up with a 12.5 inch, F5 Portaball, which is just the right size for me.




There is a lot to be said for a 12.5 inch Dob, its very capable and yet very manageable. With a Starbound chair, I can view comfortably seated all night long. When we go camping, its the scope I normally take as a companion for a 3 or 4 inch, short focal length refractor. I enjoy having the big scope but I would never want it to be my only larger scope, too many "if, ands and buts" its too windy, my knee hurts, etc. With the 12.5 inch.. that doesn't happen.

I know what works for me, there are a lot of wonderful scopes out there, large, medium, small, refractors, reflectors and CATs.. fancy scopes and basic scopes.. fancy mounts and basic mounts.. they are all good and they all have their place.

You, knowing what works for you, that's what matters.

Jon


Post Extras: Print Post   Remind Me!   Notify Moderator  
BarabinoSr
Pooh-Bah
*****

Reged: 11/17/05

Loc: Slidell La
Re: Are smaller scopes better than bigger scopes new [Re: Jon Isaacs]
      #6348582 - 02/01/14 07:06 AM

Optical quality,eyepiece type, the observer's vision and seeing all play a role. Whether one is better than the other is subjective, but each scope has its merits. An optically good larger scope would be better than a smaller scope of similar quality under most circumstances because of its superior light gathering ability, and in some instances a small scope would be okay because they can tolerate atmospheric seeing conditions better.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | (show all)


Extra information
19 registered and 27 anonymous users are browsing this forum.

Moderator:  Rich (RLTYS), Brian Risley 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 757

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics