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D7100 Problem
May 8, 2013 08:53:33 #
ProfJoe
Loc: Westchester County, New York
I just purchased a D7100 camera. The issue I have is when I download an image and check the properties in my editing software the focal length in 35 mm film is inaccurate. For example if I use the Nikon 70-300 vr at 70mm it indicates 70mm in 35 mm focal length when it should be 105 mm. I tried it at 300 mm and still got a reading of 300 mm instead of 450 mm. I switched to the 1.3 DX at 300 mm and got a reading of 600 mm for a 35 mm conversion (should be 585?). I shot with a Sigma 17-50 OS and had the same problem.I never had this problem with my D7000. I use Photoshop Elements 11 or Picasa for editing. Any advice would be appreciated.
May 8, 2013 09:11:47 #
Your PS11 may not be updated for the new D7100. Check to see if there is an update.
May 8, 2013 09:22:24 #
I checked my d7100 in Picasa and had the same result..........?
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May 8, 2013 11:27:57 #
Sounds like a firmware problem. Has anyone contacted Nikon about it?
May 8, 2013 11:34:37 #
ProfJoe
Loc: Westchester County, New York
I contacted Nikon several days ago and they asked what kind of editing software I was using. I replied and am still waiting for them to get back to me.
May 9, 2013 06:07:57 #
I use cs6 and I don't have that problem.Has to be something in ps11 or picassa.Have you update lately?
May 9, 2013 06:11:48 #
Maybe try the software that came with your D7100 and see what results you get...could be software...firmware...camera settings...just a thought.
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May 9, 2013 07:08:44 #
Just checked my D7100 images & some D300 images... LR4 shows onlythe regular 35mm focal length. Picasa shows both the 35mm focal length & the focal length equivalent of the shot.....It's the software you use that is getting & interpreting the info from the camera...
May 9, 2013 07:28:07 #
ProfJoe wrote:
I just purchased a D7100 camera. The issue I have ... (show quote)
It sounds like it's ignoring the crop factor, right? It's giving the actual focal length.
May 9, 2013 10:06:28 #
just been trying a few test shots myself......D7100 seems to be ignoring the basic DX factor...1.3DX is Ok ......the shots are fine....its the "paperwork" thats wrong. Have tried a number of processing progs. and the result seems the same....
May 9, 2013 10:07:53 #
hyranger wrote:
just been trying a few test shots myself......D7100 seems to be ignoring the basic DX factor...1.3DX is Ok ......the shots are fine....its the "paperwork" thats wrong. Have tried a number of processing progs. and the result seems the same....
As many people have said here many times, 100mm is 100mm, regardless of the camera.
May 9, 2013 10:10:47 #
I agree entirely, I am just coming to terms with Fahr. and Celsius.......
May 9, 2013 10:44:28 #
mwsilvers
Loc: Central New Jersey
ProfJoe wrote:
I just purchased a D7100 camera. The issue I have ... (show quote)
The reason your editing software indicates 70mm is because that is the focal length you use to capture it. Focal length does not change because the lens is on a camera with a crop sensor. What changes on a crop body is the size of the image circle, which is smaller than on a full frame. The angle of view on a crop at 70 mm will give you a result that LOOKS similar to a photo taken at 105mm on a full frame body, but the focal length has not changed. You software is reporting the focal length correctly.
While this is may not be a great analogy, think about manually cropping an image on your computer. The result when viewed at the same size will look like you're much closer but you haven't altered the focal length.
People focus way too much on the crop factor. Unless you are going back and forth between full frame and crop sensor bodies a lot, you can generally ignore it. The important thing to take away is that you took the picture at 70mm not 105mm.
May 9, 2013 10:49:34 #
mwsilvers wrote:
The reason your editing software indicates 70mm is... (show quote)
You are misunderstanding what he's asking about...See this Picasa screen capture. It shows the actual focal length of the lens PLUS the crop sensor FOV equivalent...
May 9, 2013 11:02:17 #
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