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Bipolar (III) Inmate

From: Helsingborg, Sweden
Insane since: Oct 2000

posted posted 04-09-2002 17:26


I need a digital camera for print and my question is this:
"Is it absolutly necessesary that the camera can produce 300 dpi-images?"

Almost allways the camera is specified with how many pixels (how big) the
images will be rather than specify how many dpi the camera can render.

The most common dpi among digital cameras today are 72 unfortnunately...

Bipolar (III) Inmate

From: Southern Alabama, USA
Insane since: Sep 2000

posted posted 04-09-2002 17:44

How many dpi the pictures are is pretty irrelevant, since you can change that easily in a graphic program like PS.

What you need to look at is how many pixels the images are. You need about 300 dpi for print, so to get the maximum size you can print, you divide the number of pixels with 300 to get the size in inches.

For instance, if the max size is 1600x1400 pixels, then you can print around 5,3x4,6 inches or 13,3x11,7 cm, and maybe a little bigger, depending on how concern you are about the quality.

Bipolar (III) Inmate

From: Helsingborg, Sweden
Insane since: Oct 2000

posted posted 04-09-2002 20:40

Ah, thanx alot! =)

Maniac (V) Inmate

From: Boston, MA, USA
Insane since: Apr 2000

posted posted 04-10-2002 04:13

I don't think most digital cameras save at 72 DPI - I think they save at a "raw" or undefined resolution. Resolution is a sort of slippery concept, and 300 DPI is an abstract concept that only means anything is a fairly narrow discipline. If you camera saved at 300 DPI, someone shooting for a web site would be inconvenienced. The color lab we use has an Epsilon printer which images to photo paper at 257 DPI, and our Fuji Pictrography images at several resolutions including 200 and 267 DPI. So as Zox points out, it's the pixels that matter, not the resolution. Don't look for a camera that saves files at 300 DPI - look for a camera that can capture enough data to yield a usably large image at the resolution you expect to need.

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