Re: [APML] Question on vignetting

[Duncan Munro <dmunro@sfu.ca>]

I have a sample of vignetting with a f6.3 R/C and a 10" Meade here:

http://www.sfu.ca/%7Edmunro/essay.html

you can't hope to fill a 35mm frame but you should be able to almost 
fill a DSLR frame.

cheers

Duncan


Alan Voetsch wrote:

>Hey Bradley,
>
>Yeah, this is p[retty much what you can expect to see when you use a
>reducer. I won't attempt to explain it. Check out: 
>
>http://www.mapug.com  and do a search for vignetting
>
>MAPUG was pretty much a SCT specific site so the info you find will
>most likely be SCT specific. 
>
>Alan
>
>--- Bradley <bhope@thorngarden.net> wrote:
>  
>
>>DUH ME again. Forgot the link. <sigh>
>>
>>http://astronomy.thorngarden.net/images/frame5.jpg
>>    
>>
>
>
>
>SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
>FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
>& http://www.pbase.com/avoetsch12952/fs102
>& http://www.pbase.com/avoetsch12952/takpf
>
>
>		
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