Picture Size Question

R
Posted By
Roberto
May 30, 2006
Views
288
Replies
4
Status
Closed
I am using a 5 MP Canon Digital camera.

It is set to the highest resolution 2592×1194 and Superfine mode.

When I retrieve the pictures into Photoshop, the size of the photo is approximately 11"x14".

On an older 4MP camera I have, the images are 23"x31".

Why is this happening? Shouldn’t the 5MP pictures be a larger size?

Thanks.
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E
edjh
May 30, 2006
Steve wrote:
I am using a 5 MP Canon Digital camera.

It is set to the highest resolution 2592×1194 and Superfine mode.
When I retrieve the pictures into Photoshop, the size of the photo is approximately 11"x14".

No, they are not. There are no inches in Photoshop. Look at the pixel dimensions. Depending on the resolution the pictures could be many different values in "inches". The pixel numbers are constant.

On an older 4MP camera I have, the images are 23"x31".
Why is this happening? Shouldn’t the 5MP pictures be a larger size?
Thanks.

—
Comic book sketches and artwork:
http://www.sover.net/~hannigan/edjh.html
Comics art for sale:
http://www.sover.net/~hannigan/batsale.html
DH
Dennis Hughes
May 30, 2006
Steve,

If you open Photoshop and go to Image/Image Size and uncheck "Resample Image" you will find by varying the resolution number, you will increase or decrease the printed size (document size) of the image – all without changing the real image dimensions, the pixels.

The document size (print size) has to have a resolution supplied in pixels/inch. 300 ppi is fine for high quality prints. For web viewing, 96 ppi or 72 ppi is fine.

Again, the size of all bitmapped images is in pixels, i.e. 2000×3000 px. You can give a size in inches, but you have to add a pixels per inch to make it meaningful.

This is an important, basic concept.

Hope this helps,

Dennis

"Steve" wrote in message
I am using a 5 MP Canon Digital camera.

It is set to the highest resolution 2592×1194 and Superfine mode.
When I retrieve the pictures into Photoshop, the size of the photo is approximately 11"x14".

On an older 4MP camera I have, the images are 23"x31".
Why is this happening? Shouldn’t the 5MP pictures be a larger size?
Thanks.
K
Kielipuoli
May 31, 2006
Just a detail…

"There are no inches in Photoshop."

There are indeed inches (and centimeters) in Photoshop, alongside with pixels. When you create a new image, you can choose to define the picture size in pixels, centimeters, inches, and several other units of measurement. Photoshop’s rulers can also use several different units of measurement.

About the original question: if you are looking at the picture size in inches, and it looks smaller for the 5MP picture, check the Resolution value (in pixels per inch or pixels per cm) in Edit > Image size.
E
edjh
May 31, 2006
Kielipuoli wrote:
Just a detail…

"There are no inches in Photoshop."

There are indeed inches (and centimeters) in Photoshop, alongside with pixels. When you create a new image, you can choose to define the picture size in pixels, centimeters, inches, and several other units of measurement. Photoshop’s rulers can also use several different units of measurement.

Yes, but all those except pixels is resolution dependent. Images are a certain number of pixels, regardless of resolution. What shows in New Image is a convenience only.

About the original question: if you are looking at the picture size in inches, and it looks smaller for the 5MP picture, check the Resolution value (in pixels per inch or pixels per cm) in Edit > Image Photoshop

Comic book sketches and artwork:
http://www.sover.net/~hannigan/edjh.html
Comics art for sale:
http://www.sover.net/~hannigan/batsale.html

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