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Understanding Macro Lens Apertures (Micro-Nikkors)...

ChrisLilley

UK
506 posts

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"RE: Understanding Macro Lens Apertures (Micro-Nikkors)"

ChrisLilley Registered since 14th Jul 2007
Mon 03-Sep-07 01:23 PM


>The following mathematical formula is the actual definition
>of Effective Aperture:
>http://mysite.freeserve.com/nikonians/images/EffectiveAperture.jpg
>where,
>A = aperture
>M = subject magnification
>p = pupil magnification (exit pupil diameter/entrance
>pupil diameter)

The link seems to be dead. Does someone have the actual formula? I tried wikipedia but no luck.

--
Camera <ˈkæ mə rə>, n. Device for taking pictures in bright light.
http://www.flickr.com/photos/nantonos

Pinned topic Understanding Macro Lens Apertures (Micro-Nikkors)... [View all] , SzennyBoy Awarded for his shared hands-on experience in macro photography within the community forums and the Resources , Sun 29-Dec-02 10:02 AM
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