Canon files opening up as 72DPI in Photoshop

I've had this problem both on my home PC & work PC using different image files. Everytime I open up a jpg from a Canon camera, it opens it as 72DPI instead of 300 DPI. Any other file that I open from my Nikons or somewhere else that is 300DPI will open up as that.

I just thought this was normal. It works the same from my Panasonic.

This was answered in a recent thread - DPI out of a camera is meaningless as it is purely used for monitors and printing. 72Dpi - 96dpi is adequate for monitors 270 - 360 Dpi is adequate for most printers. Setting this in Camera makes no difference to the quality of the pic as you reset this to suit the Monitor/Web/Printer that you are about to use to display the picture.

I set the default in PS to 300 dpi when opening a picture so its ready to print, but to get it on the web I have an action that sets it to 96dpi but frequently forget to use it. :D

Hope that helps.

Roger

Its wierd since it only happens when I open Canon files. My Nikon files always open up to 300. I guess its another reason to stick with Nikon :D

Quote:

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Originally Posted by readingr

This was answered in a recent thread - DPI out of a camera is meaningless as it is purely used for monitors and printing. 72Dpi - 96dpi is adequate for monitors 270 - 360 Dpi is adequate for most printers. Setting this in Camera makes no difference to the quality of the pic as you reset this to suit the Monitor/Web/Printer that you are about to use to display the picture.

Roger

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With regards to display on a monitor and DPI within the image file, it's a very common myth that has been perpetuated now for many years. The DPI when displayed on a monitor won't make ounce of difference visually, as the dot pitch on a monitor is fixed and is determined by the physical characteristics of the monitor itself, not setting within the image file. The pixel resolution of the image is what makes the difference on a display unit.

To illustrate this point, this picture is 1024x768@300dpi.

http://gallery.photographyreview.com...768-300DPI.jpg

Now, the following image is at 1024x768@1dpi

http://gallery.photographyreview.com...768-001DPI.jpg

Notice no difference visually on the monitor. Now if you try to print the suckers, there will vast difference in print size and quality.

Cheers,
Greg