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Old 21-04-08, 20:34
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Don Hoey Don Hoey is offline  
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Location: Norfolk
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Quote:
Originally Posted by wolfie View Post
..........but just one point, especially when using a focus rail (screw/worm drive) you only need to establish your first point of focus, then depending on the thread size just give it 1-2 revolutions to obtain the varying focus points.

Harry
Harry,

That was the reasoning behind the micro adjuster I made. If I use a reversed 28mm then I loose auto diaphragm so multiple focussing ops would just be a pain. Todays effort was really for Lello's benefit so focussing was by lens only.

Don
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