Adubin Loc: Indialantic, Florida

Yesterday morning I spent some time taking close-up photos of orchids using my new Sigma EM140DG Ring Flash. I wanted to see what focus range and DOF, I had when using my Nikon D300S with 70-200mm f-2.8 VR lens and a Kenko 36mm extension tube. Actually I could focus from 7 inches up to 41 inches with this 36mm extension tube. The first two photos were not crop at all, and the last one was cropped to 86% of the original size. I used Lightroom 3 to enhance these photos. I would appreciate some feedback on these photos and your thoughts if a Macro lens could capture a better image. If you want to view more images taken with the same set up at McKee Botanical Garden click on this link. http://bit.ly/od6cfu

#1 - ISO 400, Speed 1/200, f-stop F22


#1 - ISO 250, Speed 1/200, f-stop F22


#1 - ISO 400, Speed 1/200, f-stop F22

Pics-Tale

Try higher f-stop. It’d gives you a much dramatic look on the subjects.

Adubin Loc: Indialantic, Florida

Do you mean like f-22 or f2.8? I took these at f-22 and that is highest I can go to on this lens.

Pics-Tale

yes f2.8 is higher(Larger). f22 is lower(smaller).
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http://en.wikipedia.org/wiki/F-number

Adubin Loc: Indialantic, Florida

Thanks for getting back to me. I will try that next time I take photos of the orchids.