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Tak FM40 focuser

Started by jediwebwarrior, 10/27/2003 06:51PM
Posted 10/27/2003 06:51PM Opening Post
Anyone using the Takahashi FM40 focusing device? I am looking for an alternative to knife-edge for my Mamiya 645 and Nikon FM3. The FM40 was suggested, but I can't find any locate any info on it.

Posted 10/27/2003 08:34PM #1

Here is some info

Posted 10/28/2003 03:07PM #2
The FM-40 is the smaller brother of the FM-60. The FM-40 has a range of about 40x to 55x and the FM-60 is goes to about 72x. Yes they are variable. You will need a larger ground glass as well. I pick a bright star, focus and lock that's it for the evening.

Art Ciampi