[pure-silver] Formula needed
- From: "Stein" <rstein@xxxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Mon, 27 Sep 2004 06:51:47 +0800
Dear Friends,
I am currently constructing a camera and need to know a formula for
calculating the in-focus point for the main subjects. The camera has a fixed
extension of 466 mm from the film plane to the lens mount. If I mount a 300 mm
len with the nodal point just about at that 466 mm point, what will be the
distance between the lens and the in-focus subject plane?
I know I have the formula somewhere but cannot find it.
Thanks in advance.
Uncle Dick
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