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|| SportsShooter.com: Member Message Board
Canon 10D 180 dpi? Can it be changed?
Jeff Stanton, Photographer
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Tucson | Az | USA | Posted: 10:33 PM on 02.28.06 |
->> I did a search for this and couldn't quite find what I was looking for in the archives.
When I open images shot with a 10D, Photoshop opens them as 180 dpi sized image. It's been this way on several computers I've tried. I thought this was perhaps a Photoshop preference that I could change, but have been unable to change it, or at least I haven't found a way to change it in the camera or Photoshop. Any ideas? |
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Andy Mead, Photographer, Photo Editor
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Durham | NC | USA | Posted: 11:25 PM on 02.28.06 |
->> Are you saying you're unable to change the "dpi" setting of a Canon 10D photo in PhotoShop?
As far as I know, it is not something that can be changed in the camera. I've had a 10D for nearly 3 years now, and every photo comes out of the camera set to 180.
But I've never had any trouble changing that in PhotoShop, Photo Mechanic, or any photo manipulation software.
I wouldn't batch change photos in PhotoShop for such a trivial change - as PhotoShop uncompresses and recompresses the photo. Tools like PhotoMechanic allow you to change settings like dpi/ppi without affecting the image itself. |
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Jeff Stanton, Photographer
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Tucson | Az | USA | Posted: 11:44 PM on 02.28.06 |
->> Yes, I can change the dpi in photoshop, but I am accustomed to changing to 300 dpi and that's just less than twice than what it comes out of the camera at.
So after cropping, I may have an image at 180 dpi at 8X10. Will it hurt it to raise the dpi to 300? Some images look ok, some don't. |
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Andy Mead, Photographer, Photo Editor
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Durham | NC | USA | Posted: 11:51 PM on 02.28.06 |
->> "Large" 10D images come out of the camera at 3072x2048 pixels - or 10x6.7" at 300dpi.
It's just like anything else. Anytime you interpolate images to increase their size with software, you're going to find better results with better source material. The less you attempt to upsize an image, the better. But then, none of this is specific to the 10D. |
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Jeff Stanton, Photographer
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Tucson | Az | USA | Posted: 12:01 AM on 03.01.06 |
| ->> Indeed |
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Mark Buffalo, Photographer
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Lonoke | AR | USA | Posted: 12:20 AM on 03.01.06 |
->> Jeff, mine always come out at about 12x18 inches at 180 dpi. Never had any problems moving the file size arond as long as it stay proportional.
Mark |
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Seh Suan Ngoh, Photographer
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Singapore | SG | Singapore | Posted: 1:14 AM on 03.01.06 |
->> Ditto. The smaller the physical output you want it to go... for a 4R image I can go 3072/6 by 2048/4 == 512 dpi!!!
Honestly, there are other calculations involved during upsizing or upsampling, but that's something I rarely need to do at all. |
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Jeff Stanton, Photographer
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Tucson | Az | USA | Posted: 1:45 AM on 03.01.06 |
| ->> I'm wondering why Canon would make the images 180 dpi out of the camera when they make them 300 out of the 1D, which is only a 4.1 mg pixel image file. Am I missing something? |
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Mark Loundy, Photo Editor
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San Jose | CA | USA | Posted: 4:05 AM on 03.01.06 |
->> Jeff, Why does it matter? DPI only matters in context of reproduction size. Even if you were to change the DPI srtting in the camera, the pixel dimensions (the only ones that count) would be identical.
--Mark |
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