Extension tubes for SIGMA APO 70-300mm Macro lens?

2010-10-29 10:02 am
can extension tubes be used for Sigma APO 70-300mm F4-5.6 DG MACRO lens? will it produce superior results than using just the lens?
更新1:

this lens produce magnification of up to 1:2. can i have 1:1 by using the tube

回答 (4)

2010-10-29 2:01 pm
✔ 最佳答案
you can't control aperture and auto focus if you use tube that have no electronic contact and you end up using the lens' maximum aperture
2010-10-29 6:02 pm
Extension tubes can be used for any lens. Depending on what you are trying to achieve, the result may be what you want or not. If you want higher magnification then extension tubes will definitely work. I personally use a bellows for macro shots.
2010-10-29 5:36 pm
IT could improve the macro capabilities of the lens. H
2010-10-29 5:20 pm
Personally, I would never use extensions tubes with a zoom lens. You are going to loose 1 or 2 stops . I don't think you will get superior results - why do you think you might?


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