Stuff that might be of use but probably not.
Sunday, October 13, 2013
Reversed 28mm on a D5100 is 2:1 macro
D5100 sensor size 23.6 mm × 15.6 mm
8mm of wooden ruler spans height of sensor
Magnification is 15.6mm : 8mm
About 2:1 which is great, but the focus distance is insanely close.
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