JPEG Problem

JC
Posted By
James Crump
Sep 2, 2003
Views
422
Replies
10
Status
Closed
I am using PS 5.5 on windows and bought a digital camera (Nikon 5700). When I save the images on the memory card as Tiff they open fine; 5.8×8.5" and 2540dpi; when I save as JPEG they open as 23 x 35" and 72dpi? Is this a verison problem? A friend has the nikon 5000 and ImageReady and has no problem.

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TD
Thee_DarkOverLord
Sep 2, 2003
Wow 2540 dpi, would love that from my Digital Camera (DC), most DC do save at 72 dpi, but not all. I think you should read over your manual again, if you are sure you can save at that res, im stepping down and letting some one else step in,.

Oh look here’s some one now….
MH
Mark Hiers
Sep 2, 2003
The pixel dimensions are the same, so I wouldn’t worry about it too much.
W
waterrat365
Sep 2, 2003
This seems to be a typical thing that each camera software does on its own. My D-100 downloads at exactly 300 dpi, but my Canon downloads at 180 dpi, and my Casio downloads at 72. They each make up the difference by changing the print size to fit the number of pixels. Weird, eh? Cliff Moore
P
Phosphor
Sep 2, 2003
Pixels are pixels, and are the only measurement you need be concerned about from capture through computer manipulation.

Physical dimensions—in inches or centimeters or lightyears—don’t mean squat in digital images until you decide how you want to print the image.
JC
James Crump
Sep 3, 2003
Ok, I checked and we’re at the high pixel count but the tiff files are 300 in PS. If as you say this is typical – the larger print size to open at 72 then are we losing sharpeness or just resize to 5×7.5 at 300? The files are in the 12meg range.
L
LenHewitt
Sep 3, 2003
James,

Just re-size to 5 x 7.5 with resample image off.
P
Phosphor
Sep 4, 2003
Len is correct. You might want to create an action for doing that. You’re bound to be doing it over and over.
GP
gerard pearce
Sep 4, 2003
G’day could someone explain to me what turning the resample image off does in this process as in (#6of7) and are you blokes working in inches or centimeters? I understand it doesn’t affect the process, I am just interested in what 5×7.5 you’re talking about. thanks
V
viol8ion
Sep 4, 2003
could someone explain to me what turning the resample image off does in this process

Turning resampling off ensures that you end up with the same info in your image when you are done resizing. If you were to resmaple and resize an image from 300PPI to 72PPI, PS tosses image data and creates a smaller file, which is fine if that is what you intend. However, to go back to 300PPI and maintain image size, PS would then have to add image data that now does not exist, resulting in a severely degraded image.

Increasing the PPI in this case will result in an image that will print smaller than 23 x 35 (roughly 5 x 8?) without any loss of image data.
L
LenHewitt
Sep 4, 2003
Gerard,

are you blokes working in inches or centimeters? <<

I would assume inches, but that depends upon what the original dimensions were in <g>. It’s just the size that automatically ‘appears’ when altering the ppi from 72 to 300 without re-sampling. That is 72 /300 or 24% of the original dimensions at 72ppi

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

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