Adam Svoboda Offline Image Upload: Off
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p.2 #12 · Whats your macro lighting setup? | |
Brian, I figured 12:1 or so..
first I made a typo on the extension tubes, it should be 12/20/36
so theres 68mm, add that to the 100mm macro, you got 168mm, and ~1.68:1
(I'm told that every 1mm you add in bellows/extensions it adds .01 magnification)
times that by 2 (for the 2x extender) you get 336mm divide that by 28mm and you get 12 even. All I know is grains of salt are pretty big. I just got these extension tubes today, so I haven't shot anything really.
I'm not sure what formula to follow
(Main Lens + Extensions) x (extension power) / rev. lens
Edited on Mar 20, 2008 at 08:08 PM
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