Subject: Not as much as you might think. Author: drdread Date: 8/28/2002 1:35:36 PM Message:    I'd have to sit down with an optics textbook and refresh my meager knowledge of the subject, but IIRC a +4 diopter will reduce the minimum focus distance by ~25%. My advice is just to go buy the Canon f/2.5 50mm macro lens. Nikon's 60mm macro is only a ~$300 part, so I would assume the Canon lens is in the same ballpark. D

Subject

Author

Date

Close focusing (5)

awhkwong

8/27/2002 11:04:47 AM

Optics (2)

drdread

8/28/2002 8:50:09 AM

Canon 50mm/1.4 (1)

awhkwong

8/28/2002 11:21:10 AM

Not as much as you might think. (0)

drdread

8/28/2002 1:35:36 PM

Try a flat port with that setup (+) (0)

E=MCscow

8/28/2002 2:02:57 PM

Stack away, but..... (0)

scorpio_fish

9/4/2002 7:59:38 AM

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