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Al G

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Al G Registered since 17th Nov 2012
Wed 02-Jan-13 11:22 AM

I had seen somewhere a comparison between various macro lenses. I have a Tamrom 90mm but the downside is the barrel extension near 1:1 reduces the front of lens to subject while reducing the aperture from 2.8 to 5.6. The Tamron depth of field is about about 2 mm or so.

What I wanted to see is a net distance from front of lens at 1:1 combined with final aperture with more depth of field to see if there is a better option. The Nikon site just shows the focal plane to subject and does not mention final aperture.

I was sure there was a chart that compared the parameters (final aperture, lens from to subject, depth of field) but cannot find it now.

Al

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G