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D7000 RAW EXIF data: subject distance

Chris Platt

Newburg, US
481 posts

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"RE: D7000 RAW EXIF data: subject distance"

Chris Platt Silver Member Nikonian since 30th Sep 2012
Sat 01-Dec-12 02:59 PM | edited Sat 01-Dec-12 03:04 PM by Chris Platt

30ft with a 400mm lens should get you accuracy within that 1 foot range. My tests suggest that the reported distance for fairly close objects is quite accurate. 30 ft at 400 mm is very close. I just tried it with a 400mm setting, measuring a 29' 9" distance from the focal plane to a target with a tape measure. I tested with aperture settings from f5.6 to f32 giving DOFs that ranged from about 1/3 foot to 2 feet. I then tested at 100mm from f5 to f25 giving a DOF range from 3 feet to 35 feet. In every shot the exif reported 29 feet. If your target is beyond the hyperfocal distance the focus distance reported won't be the camera to subject distance, but probably something very close to the hyper focal distance (the near limit of the infinite DOF).

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A topic tagged as in need of help D7000 RAW EXIF data: subject distance [View all] , RLDubbya Silver Member , Fri 23-Nov-12 07:54 PM
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