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<blockquote data-quote="Stoshowicz" data-source="post: 363400" data-attributes="member: 31397">I agree again , its not rocket science , its just a big huge long calculation that should have a very simple useable result ,, the answer should look something like ,, making some basic assumptions about standard lighting outdoors ,barometric pressure , ambient temperture etc , the sharpest resolution of a three inch deep object is managed by this lens and camera&nbsp; at f/X , Y mm , and at a distance of Z feet.Yes we all chimp shots to a degree, but Id just like to be able to set those two parameters on the lens and then approach to the correct distance, knowing that -to the degree I waver from that known standard -is the degree to which I am not optimizing for sharpness.And anyone else using that basic combo , and wants to optimize for sharpness when they can actually approach the object, maybe a flower , some food product , perhaps even faces etc , can roughly use this same standard.</blockquote>

[QUOTE="Stoshowicz, post: 363400, member: 31397"] I agree again , its not rocket science , its just a big huge long calculation that should have a very simple useable result ,, the answer should look something like ,, making some basic assumptions about standard lighting outdoors ,barometric pressure , ambient temperture etc , the sharpest resolution of a three inch deep object is managed by this lens and camera at f/X , Y mm , and at a distance of Z feet. Yes we all chimp shots to a degree, but Id just like to be able to set those two parameters on the lens and then approach to the correct distance, knowing that -to the degree I waver from that known standard -is the degree to which I am not optimizing for sharpness. And anyone else using that basic combo , and wants to optimize for sharpness when they can actually approach the object, maybe a flower , some food product , perhaps even faces etc , can roughly use this same standard. [/QUOTE]

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