Mini Competition #12

Quote:

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Originally Posted by Jim B.

Pardon me:o,I thought you were using a 40D.I have the three lenses you posted.If you have any questions about them,I'd be happy to answer if I can.

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Yes I have. The 28mm prime has a red dot by f5.6, what is that for?

Quote:

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Originally Posted by arith

The 28mm prime has a red dot by f5.6, what is that for?

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That'll probably be the infrared index - you'd line that up against the subject to camera distance when doing infrared photography to ensure correct focusing.

Cheers, nice to have I suppose. :)