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DPI Question
- Thread starter MT37
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Grimace
macrumors 68040
DPI is for printing. You want to change the pixel count on the Rebel to the highest possible setting. Set it to L (large) or RAW. Dividing the pixel count [ex. 3600x2400] by 300dpi printing gives you the largest size you can print at that [print] resolution [12x8].
-hh
macrumors 68030
To change DPI
In Photoshop CS2, with an image open:
Go to IMAGE menu
Halfway down, click on "Image Size..."
In the dialog that opens, it should be:
Pixel Dimensions:
Width (value)
Height (value)
Document Size:
Width (value)
Height (value)
Resolution (value) <--- you'll want to change this one to 300
Then three checkboxes:
[ ] Scale Sizes
[ ] Constrain Proportions
[ ] Resample Image <--- but watch out for this box. You probably don't want it checked
----
When importing in RAW, look in the bottom left: Space, Depth, Size, Resolution (value).
Change the last one from 72 to 300 and you should be set.
-hh
In Photoshop CS2, with an image open:
Go to IMAGE menu
Halfway down, click on "Image Size..."
In the dialog that opens, it should be:
Pixel Dimensions:
Width (value)
Height (value)
Document Size:
Width (value)
Height (value)
Resolution (value) <--- you'll want to change this one to 300
Then three checkboxes:
[ ] Scale Sizes
[ ] Constrain Proportions
[ ] Resample Image <--- but watch out for this box. You probably don't want it checked
----
When importing in RAW, look in the bottom left: Space, Depth, Size, Resolution (value).
Change the last one from 72 to 300 and you should be set.
-hh
CanadaRAM
macrumors G5
To clarify:
you take pictures in pixels -- so a 3000 x 2000 file would be 6,000,000 pixels or 6 megapixels.
How large you print this is controlled by your printing software and choices.
At 72 pixels per inch resolution (conventional monitor screen resolution), it would be 41 inches by 27 inches
The same collection of 6M pixels at 300 pixels per inch resolution would be 10 inches by 6.6 inches
you take pictures in pixels -- so a 3000 x 2000 file would be 6,000,000 pixels or 6 megapixels.
How large you print this is controlled by your printing software and choices.
At 72 pixels per inch resolution (conventional monitor screen resolution), it would be 41 inches by 27 inches
The same collection of 6M pixels at 300 pixels per inch resolution would be 10 inches by 6.6 inches
