Mr. Johnson wrote:
It shows that you can get 1:1 with the 50mm/3.5 and 25mm extension tube
because of the extension already built into the 50mm/3.5. As far depth of
field...well somebody else can probably answer that question for you better
than I. However, a quick test with my 25mm tube and 50/2 macro shows a
working distance of about 6cm. At f11, things looks like they are in focus
for about 0.5cm on either side of that.
The depth of field with a Zuiko at 1:1 will theoretically be no different to
any other brand of lens of the same focal length at the same magnification.
You can stop it down to f16, but you may lose sharpness due to diffraction.
What about a pinhole ?
Wayne Harridge
Ivanhoe, Victoria, Australia
http://members.optusnet.com.au/~w_harridge/
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