julie hodgson:My camera shoots at 32x48 -72
Not really, your camera shoots at 2304 pixels by 3456 pixels. Your software opens the image at 72 ppi which is what it thinks your screen resolution is.
it crops evenly to a 4x6 mathmatically wise-so I think I do nothave to crop but...
Yes that sizes, not crops, to a 4x6 because the aspect ratio, think shape, of your sensor is the same as a 4x6 print.
To print on mpix do I need to change the res to 300 or go ahead and crop it to a 4x6 which ups the res by itself??
When you crop you are removing pixels which decreases the resolution, not really a good thing. What you want to do is to resize the image smaller without changing the number of pixels. When you do this the PPI (Pixels Per Inch) will increase because you have the same number of pixels but fewer inches.
To do this in Photoshop you go to Image Size and uncheck the box at the bottom that says "Resample Image" then change either your size in inches or your resolution, when you change either one of these the other will automatically change too because you are working with a fixed number of pixels.
You do not want to change the number of pixels unless you have and only do it to a copy of the file you have saved.
cort
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cort
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