Anyone know why the same lens on a D7000 and D7100 results in the EXIF data for D7100 indicates the focal length is 35mm and the 35mm equiv focal length is 35mm while the EXIF data for the D7000 indicates focal length is 35mm and the 35mm equiv focal length is 52mm?
Rob, It looks like there is either a bug in the D7100 firmware or since the D7100 is so new that the software reading the EXIF data is not up to speed. What program are you getting the EXIF data from? If the program is anything other than Nikon's then that could be the problem. It should say 52mm. However this is really almost a non-issue since it only tells you what the equivalent focal length would be if viewed on a full frame camera. What you could do is see if Nikon's View NX2 that came with the camera reports the same thing.
Interesting. I had already noticed something else. I have seen it in a couple places. But, I just went out with my Nikon 35mm f1.8 on my new D7100. I shot one photo "normally" in the standard 1.5x (3/2)crop mode, and then one using the 1.3x crop mode. Actually it calls it the 1.33x (4/3) mode.
Using Panda IEXIF 2, I got: =============================== Focal Length = 35mm
Digital Zoom Ratio = 1.33x Focal Length in 35mm Film = 70mm ===============================
That would be 3/2 x 4/3 = a crop factor of 2x.
Curiously in standard DX or 1.5x crop it shows: =============================== Focal Length = 35mm
Digital Zoom Ratio = 1x Focal length in 35mm Film = 35mm ===============================
As soon as I read your post, I ran the same test, but using my 17-55 mm. f/2.8 set at 35 mm. with 1 exposure at DX and 1 with the 1.33x crop. Sent to PS CS6, and got the exact same results (35 mm. equivalent focal length = 35 mm. for the 1st setting; 70 mm. for the 2nd).
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