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Don25
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Reged: 10/20/03
Posts: 701
Loc: Delaware, U.S.A.
Knife edge focusing new
      #18141 - 11/04/03 06:08 PM

Hello again it's me the question man.....I was wondering since I have done Prime Focus shots of the Moon, and found it very easy to focus using my 35 mm Pentax, I know that when my eyepiece adapter arrives it will be difficult to get an accurate focus while looking through the standard viewfinder of the camera. I know that there is a technique known as knife edge focusing, and I was wondering if this is one of the better, cheaper methods of focusing on a dim planet or deep space object....or if there is another method of focusing the camera while using the dim standard viewfinder....any help/expierience appreciated.

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Suk LeeModerator
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Reged: 10/07/03
Posts: 4315
Loc: Pleasanton, CA
Re: Knife edge focusing new [Re: Don25]
      #18152 - 11/04/03 07:30 PM

Don:

Here's a great resource:

http://www.astropix.com/HTML/I_ASTROP/I08/I08.HTM

Regards,
Suk

--------------------
http://www.siliconvalleyskies.com


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Don25
professor emeritus
*****

Reged: 10/20/03
Posts: 701
Loc: Delaware, U.S.A.
Re: Knife edge focusing [Re: Suk Lee]
      #18162 - 11/04/03 08:42 PM

Thanks Suk,.....very informative site.

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