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Old Mar 31, 2006, 11:44 PM   #1
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what is the diffence in these 2 lens anyway?is one a super macro?
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Old Apr 1, 2006, 12:33 AM   #2
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One is APO for chrommatic abberation corrections
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Old Apr 1, 2006, 7:10 AM   #3
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The APO is the newer version, I have the Sigma 70-300mm F4-5.6 APO DG MACRO.

http://www.sigmaphoto.com/lenses/len...mp;navigator=3

APO (APO Lens)
In order to attain the highest quality images, the APO lens has been made using special low-dispersion (SLD) glass and is designed to minimize color aberration.
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Old Apr 1, 2006, 7:21 AM   #4
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i have the older APO non-DG. it's an adequate lense for the price. i get mixed results with it tho. the 1:2 ratio macro works fine but with it being so long when in macro mode any movement at all spoils the pic. i find it hard to use in macro with out a tripod. i just got a monopod but haven't checked it out yet when using it.

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Old Apr 5, 2006, 8:13 PM   #5
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i know this lens can not use a teleconverter. but did anyone try it with the apo lens?
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Old Apr 5, 2006, 10:24 PM   #6
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I used to have an apo DG. I have used it with a kenko autofocus teleconverter, a tamron autofocus teleconverter and a teleplus conveter with 1:1 macro, all 7 element converters. Auto focus works up until about 200mm. I have also stacked all 3 together, the quality suffers of course.
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Old Apr 5, 2006, 10:34 PM   #7
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i've used it with a manual tokina 2x. quality sucks..
you get what you pay for.

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Old Apr 11, 2006, 7:30 AM   #8
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I have had70-300 APO for a few years and have been pretty happy with it's performance. Ido wish it had a zoom brake as it likes to fully extend if you're carrying it by a strap.

I'm assuming here that the DG is an upgrade, can anyone explain what that is to me?




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Old Apr 11, 2006, 8:10 AM   #9
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DG for digital
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Old Apr 22, 2006, 3:57 PM   #10
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i like to use the 70-300mm with the sigma teleconverter. if anyone can do a picture and show me it be very helpful
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