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04/09/2006 11:41:46 AM · #1 |
I have a rebel and rebel xt. With my rebel on the large fine setting I am getting resolution of 180. With my XT I have it set to large fine also and I am getting 70. The file size is larger but lower res. Is there another place to adj setting??
Also, is there a way I can adj the res on the pictures I just took?? |
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04/09/2006 12:00:17 PM · #2 |
The resolution is meaningless. All that matters is the number of pixels. So-called resolution-per-inch only comes into play when you are instructing a printer re: size & quality levels, and you adjust it in the "image size" dialogue box in your image editor.
Robt.
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04/09/2006 12:08:35 PM · #3 |
| so should I change the res before sending to online printer lab?? |
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04/09/2006 01:36:42 PM · #4 |
Originally posted by mugshot:
so should I change the res before sending to online printer lab?? |
Resolution is dependant on the size you tell the lab or home printer to print the image. It's essentially a simple math formula: Resolution = Dots / Inch or DPI where Dots is the total number of pixels (in one direction).
For example if you have an image with a total image area of 3600px x 2400px and you tell the printer(lab) to print you a 4 x 6 (6 x 4), it will be printed at 600dpi:
Res. = 3600px / 6 in. = 600dpi
Res. = 2400px / 4 in. = 600dpi
This is independant of the printer's (lab) resolution. If one printer has a higher print output resolution than another it merely indicates that it will print each pixel with more dots than the one with the lower print output resolution.
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04/09/2006 03:28:18 PM · #5 |
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