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Old 18.01.2007, 01:19   #8 (permalink)
jcbjr
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Join Date: 13.11.2006
Location: Boston
Posts: 93
Default Re: new backfocus thread-solution

Quote:
Originally Posted by bradreiman
ron-there is a 2mil allen key adjustment in the center of the "roller cam" in the lens mount. i just set the lens to infinity-look at a vertical on the horizon-take lens off and turn the allen key a bit-lens back on to check infinity-rinse and repeat-then fine tun a bit at near and mid focus...b
interesting test, bradley, and thanks for sharing with us. one thing i don't understand, however, is why you need to readjust at different focus points. i thought the cam always sprung back to same position when a lens is removed, no matter what the focus. as such, the adjustment will impact all focus distances the same, or am i missing something?

john
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