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 Post subject: Lightweight finder?
PostPosted: Mon Apr 21, 2008 6:09 pm 
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I brought up the subject in passing in another thread, but I thought I'd pose the question: has anyone attempted to build a finderscope where weight and aperture were the two priorities?

I was thinking that a singlet lens assembly and either a carbon fiber tube, or a "naked" tube with the two end sections simply mounted separately to the scope.

Having not used a singlet lens assembly since the dreaded plastic Tasco of my youth, I'm not sure how bad the chromatic aberration would be. Would it be acceptable for use in an 80mm f/5 finder? What I mean by "acceptable" is being able to distinguish DSO's from stars, etc. I'm still trying to figure out a way to build an 80mm finder that weighs the same as a standard 50mm! :grin:

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PostPosted: Mon Apr 21, 2008 6:48 pm 
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Super Nova
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The best and lightest finder just might be DSC's.


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 Post subject:
PostPosted: Mon Apr 21, 2008 7:40 pm 
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molecule

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The rigel finder is probably the best 1x in this regard. A laser pointer is pretty good too. Plain ol' glasses and a site tube are the next best thing (I need to wear glasses now :bawling:


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PostPosted: Mon Apr 21, 2008 7:46 pm 
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I have the laser finder with the Lumicon bracket. It works well, but I'm looking for something that goes a bit deeper. ;) The EZ Finder fails in that regard too. Maybe DSC's are the way to go. But you know what a purist I am... :roll:



:lol:

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-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
-The Great Paul Krugman

Evolution is both fact and theory. Creationism is neither. -Anonymous


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 Post subject:
PostPosted: Mon Apr 21, 2008 8:02 pm 
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molecule

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True purist don't use finders. They know where they are just by using a low powered eye piece. :poke:


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 Post subject:
PostPosted: Mon Apr 21, 2008 8:10 pm 
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:lol:

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-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
-The Great Paul Krugman

Evolution is both fact and theory. Creationism is neither. -Anonymous


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 Post subject:
PostPosted: Tue Apr 22, 2008 5:33 am 
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Velocepedist
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rboe wrote:
True purist don't use finders. They know where they are just by using a low powered eye piece. :poke:


So there's your answer, Erik, a 40mm Paragon. ;)

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 Post subject:
PostPosted: Tue Apr 22, 2008 2:25 pm 
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Or a 31mm Nagler. Had one, but in my scope, it gives me 80x. Not exactly suitable as a finder. Now if it's attached to a scope with a 400mm f/length... :)

_________________
-Erik Wilcox
Homebuilt 16" Truss Dob
8" Antares f/5 Newt
SV 80mm ED Nighthawk NG on M1 ALT/AZ
Nikon Prostaff 65mm spotter on Trekpod
Konusvue 20x80 binos/Peterson PipeMount


"Newt Gingrich is what stupid people think smart people sound like."
-The Great Paul Krugman

Evolution is both fact and theory. Creationism is neither. -Anonymous


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