Bassat wrote in post #18534255
DOF on a dSLR (crop or FF) is never going to be deep enough for dedicated dental work. Specialty gear exists.
Well, your statement intrigued me. My doctor, who is an accomplished photographer (his practice is full of prints from his photographic wanderings, and they are good) is using a 70D (IIRR, crop anyway and is not ancient). Is he that sloppy?
I have a crop (60D) and a regular flash (not ring), so I thought what the heck, I'll try a DOF test from 2.5-3 ft away shooting the ever handy slanted ruler (yeah, I checked with DOFMaster first).
I used my good for nothing superzoom 18-200 at an ever so soft f22 at 100mm or thereabouts...
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Ok, it isn't pretty, will not go to a publication in a dentist's conference regarding digital photography and dental recording, BUT
I get 2-2.5 inches of reasonable sharpness and I posit (no, I am not sticking the ruler in my mouth
) that it is adequate DOF for seeing all my fillings in reasonable detail!
PS: The units are in mm in deference to my previous engineering life (TBH I couldn't find a ruler with Good Christian Units...