Canon 30D resolution size question

[aac]

When I move jpg files from my compat flash card to my hard drive and open in Photo Shop CS2 it shows image size as follows:

Pixel Dimensions: 23.4M
Width: 3504 pixels
Height: 2336 pixels

Document size:
Width: 48.667 inches
Height 32.44 inches
Resolution 72 pixels/inch

If I uncheck resample image it will check constrain proportions, I change to 300 pixels/inch, and I get following:

Pixel Dimensions: 23.4M
Width: 3504 pixels
Height: 2336 pixels

Document size:
Width: 11.68 inches
Height: 7.87 inches
resolution: 300 pixels/inch

I have tested with another 30d and a 20d and we all had different resolution out of camera, only 20d had 300.

How do I get 300 pixels from camera without having to change in photoshop?

[Pikachu]

For what its worth, I get 72 dpi from my 30D as well. I have to change the resolution for the ones that need to be 300 dpi. I know that doesn't answer your question; just FYI....

[JohnT]

Apparently, 72ppi is the native res. from the 30D. Someone in another forum told me that it's the same from his 20D. For web use, it isn't going to make any difference. Only for those few that you might want to print will you need to change to 300ppi.

I almost got skewered for asking your question in that "other" forum.

[kenw]

72dpi is THE standard JPG resolution. It was developed for computer-viewing and as such was specified using the "2x viewing means" rule. Since the best monitors are about 36dpi or less, 2x36=72. viola! a standard....

you can change the resolution to anything you want but over 72dpi for web-posting is a total waste of bandwidth. Printing? 250-300 is the standard at a given print size.
as for me, I pretty much ignore resolution and just get the correct aspect ratio; 4x6, 5x7, 11x17, etc when I order a print. The printer will adjust the resoluton as required.

You don't need to adjust it in the camera.

[Michelle Allmon]

as for me, I pretty much ignore resolution and just get the correct aspect ratio; 4x6, 5x7, 11x17, etc when I order a print. The printer will adjust the resoluton as required.as for

me too, dpi has do do with the printer anyway, does it not? in other words if i am printing a 2000x3000 image into a wallet, that would be *gasp* 1000 dpi.... except the printer might actually be printing at 300 DPI, right?

[kenw]

Originally Posted by Michelle Allmon

me too, dpi has do do with the printer anyway, does it not? in other words if i am printing a 2000x3000 image into a wallet, that would be *gasp* 1000 dpi.... except the printer might actually be printing at 300 DPI, right?

for the most part, yes.