Looking for images of same object, but with different telescope sizes?

[nukeman]

Hey guys,

Iv been looking for this, but can't seem to put it together.

Mainly I am looking for images of the same object, like Jupiter or andromeda, with various sizes of telescopes, showing the difference in image of small telescopes to large ones.

Like, a small dob, to a 6, to a 8 and beyond. Kinda like that.

Anyone help me out?

Thanks! :)

 

[russ_watters]

I've imaged several objects with several different telescopes: http://www.russsscope.net/

Among them:
-Jupiter, Saturn and Mars with two different telescopes and three different cameras and various Barlow lenses.
-The Orion Nebula with two different telescopes, plus a 135mm SLR lens and two different cameras.

You can also use astronomy software to calculate a field of view for you and show you a simulation of what you'd see.

 

[nukeman]

Wow, VERY nice images!

I am looking for images a 6 inch dob is capable of?

I am VERY new to telescopes, and just picked up a 6inch dob on sale, and a 2 inch adapter.

Want to see some images a 6 inch dob is able to make.

Thanks

I've imaged several objects with several different telescopes: http://www.russsscope.net/

Among them:
-Jupiter, Saturn and Mars with two different telescopes and three different cameras and various Barlow lenses.
-The Orion Nebula with two different telescopes, plus a 135mm SLR lens and two different cameras.

You can also use astronomy software to calculate a field of view for you and show you a simulation of what you'd see.

 

[chemisttree]

Dobs aren't usually used for imaging but 6" Newtonians can be. See http://www.telescope.com/control/product/~category_id=optical_tube/~pcategory=telescopes/~product_id=09786/~sSearchSession=730afff3-3088-4236-ab21-d0f87fc83ac4", for example.

http://home.comcast.net/~patforster/astro/m57nebulosity.jpg" Notice the differences in scale. There are differences in exposure times, cameras, focal length, etc... which makes comparisons less straightforward.

 

[davenn]

a beautiful set of pix Russ, makes me severely miss the dark skies I had back in New Zealand and the astro photo's my friend and I did on many cold dark nites.


clarification... a dob (Dobsonian) is a Newtonian scope. the "dob just describes the type of mount that the Newtonian is in (Alt-Az) as a difference from an equatorial mount.

my current scope is a 8" f4.5 Dobsonian mount
An interesting thing is that many of the very large research scopes these days are often a Dob style mount. They are, just as a home dobo scope would be, easy to guide with computer control :)

Dave