I just got a new Canon 30D, when I open an image in CS2, if I click on image for the image size the pixels are at 2336 and 3504 or 3.2MB. I've been shooting in fine JPEG. At the bottom of the image size window the resolution is at 72. Is that a default setting by CS2 or do I need to go ahead and set it at the resolution for the image? I printed off a sample 8x10 set at a resolution of 300 and it seemed pretty grainy, any idea of what I'm doing wrong. Thanks.
If you uncheck resample in the Image>Image Size box you can change the resolution to 300. Or just resize changing the resolution before changing the pixel dimensions in the Image>Image Size box. But remember to work on the image and save it at full resolution out of camera before resizing for printing.
But I'm curious about why Photoshop is opening the image at 72PPI which is monitor resolution. I use Nikon, but have seen Canon files open as if they are 240PPI.
I don't know, I feel it has something to with my CS2 settings? When I started working on the image, I would set the ppi at 300, ( 11x14) do I need to go higher? I was planning to take the results to a lab and have them print the prints I need. I printed a sample from my printer and the brightness/contrast did not match what I had on the monitor.
Thanks for your reply.
The resample box has to be turned off for digital cameras. I think that's what the problem has been.
Quote:
If you uncheck resample in the Image>Image Size box you can change the resolution to 300. Or just resize changing the resolution before changing the pixel dimensions in the Image>Image Size box. But remember to work on the image and save it at full resolution out of camera before resizing for printing.
But I'm curious about why Photoshop is opening the image at 72PPI which is monitor resolution. I use Nikon, but have seen Canon files open as if they are 240PPI.
Hi Larry,
Each camera manufacturer seems to have different ppi settings. My Nikon PHD(5400) uses 300 ppi while my wife's
Sony has 72ppi as well as all three of of my Minoltas.
Hi Dave,
Time for the great equalizer.
Digital cameras do not capture PPI, only pixels in height and width dimensions. The PPI that you read is from the EXIF data that Photoshop is reading when it opens the image. Older versions of Photoshop opened digital camera images at monitor resolution of 72PPI and then starting with Photoshop 7 (I think), images opened at the PPI that the manufacturer wrote into the EXIF data.
But it doesn't much matter because you can open the image, uncheck resample and change the PPI to 300 which will give you a better idea on the print size possible without interpolating. And you won't be changing the file, just the way Photoshop reads it.
Hi again Larry,
I understand all that. I was merely pointing out that different manufacturers designate their own arbitrary
ppi--as you mention it's in the EXIF data with which PS and others such as Paint Shop Pro in turn initally size an image.
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