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Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D7100, D7000 (Public) topic #22297
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Subject: "RE: D7000 RAW EXIF data: subject distance" Previous topic | Next topic
Chris Platt Silver Member Nikonian since 30th Sep 2012Sat 01-Dec-12 02:59 PM
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#8. "RE: D7000 RAW EXIF data: subject distance"
In response to In response to 6
Sat 01-Dec-12 03:04 PM by Chris Platt

Newburg, US
          

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 helpD7000 RAW EXIF data: subject distance [View all] , RLDubbya Silver Member, Fri 23-Nov-12 08:54 PM
 
Subject Author Message Date ID
Reply message RE: D7000 RAW EXIF data: subject distance
Bravozulu Silver Member
24th Nov 2012
1
Reply message RE: D7000 RAW EXIF data: subject distance
four eighty sparky Silver Member
02nd Dec 2012
10
Reply message RE: D7000 RAW EXIF data: subject distance
elec164 Silver Member
24th Nov 2012
3
Reply message RE: D7000 RAW EXIF data: subject distance
RLDubbya Silver Member
24th Nov 2012
4
     Reply message RE: D7000 RAW EXIF data: subject distance
gfinlayson Silver Member
30th Nov 2012
5
          Reply message RE: D7000 RAW EXIF data: subject distance
RLDubbya Silver Member
01st Dec 2012
6
               Reply message RE: D7000 RAW EXIF data: subject distance
elec164 Silver Member
01st Dec 2012
7
               Reply message RE: D7000 RAW EXIF data: subject distance
JosephK Silver Member
01st Dec 2012
9
               Reply message RE: D7000 RAW EXIF data: subject distance
Chris Platt Silver Member
01st Dec 2012
8

Forums Lobby GET TO KNOW YOUR CAMERA & MASTER IT Nikon D7100, D7000 (Public) topic #22297 Previous topic | Next topic


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