ryatnalkar
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I do not know whether this is the right place to post this, so mods can feel free to move it if they think so. I am a beginner, I need to choose a lens for Digital Image Correlation technique, that i use in my mechanics lab. The lens has to satisfy following things..
1. It has to have a manual aperture setting as I vary from lower to higher frame rate, I need to add artificial light so.
2. I look at very tiny specimen, so I need a macro lens (currently have a 90 mm macro Tamron)
3. Also, I need it to be a zoom lens, if not macro with a good reproduction ratio.
I know these requirements are contradicting (?) to each other, but any suggestions?
Thanks,
RY
1. It has to have a manual aperture setting as I vary from lower to higher frame rate, I need to add artificial light so.
2. I look at very tiny specimen, so I need a macro lens (currently have a 90 mm macro Tamron)
3. Also, I need it to be a zoom lens, if not macro with a good reproduction ratio.
I know these requirements are contradicting (?) to each other, but any suggestions?
Thanks,
RY