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Old 24-09-06, 09:33
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sassan sassan is offline  
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Quote:
Originally Posted by miketoll View Post
Divide focal length of lens into amount of extension = magnification.

Sorry miketoll, my understanding is that your statement is wrong as

Magnification should be = Extension / focal length

In other word when you increase the extension or distance of lens to sensor, then you will have larger magnification, not vise versa.
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