Originally posted by leadbelly Isn't it that 2:1 means double life size? Meaning an object 10mm across will measure 20mm on a film slide? I'm not too sure too, though...
I guess you are right. 2:1 means double life size. I guess what clawhamemr meant was 1:2 instead
Back to the topic, for shooting small items in a light box/tent, better use a macro lens about 100mm focal range. 50mm would be too short, while 200mm would be too long. I've been using a DFA100/2.8 macro with a cheap light tent (bought for 20 bucks), kind like it.
Here is one photo I took with this setup:
Good luck.