Image Resolution

PD
Posted By
Paul De Lagrave
Aug 10, 2005
Views
176
Replies
5
Status
Closed
I am working with Version CS and have just upgraded to CS2. I just started noticing this and am looking for help, I bought a new digital camera that can shoot at 6.0 megapixels. When I shoot a picture at the highest setting and bring it into ps and maximize at 100%, it doesn’t look very clear. I also noticed that it is 72 dpi. I then started looking at other pictures that I had stored on my computer, pictures I had downloaded and pictures that people sent me, and they all came out to 72 dpi. So my question is do all photos open or convert to 72 dpi, what if I want a high resolution like 300 dpi what can I do to have a photo open at 300 dpi. I am asking because I know that 72 s for web and 300 is for print and what if I want a nice crisp image for print.

Thanks

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M
MMnospam
Aug 10, 2005
Go to Image / Image Size,
make sure Resample Image is unchecked,
type 300 into the Resolution (make sure it’s pixels/inch).

The width & height dimensions will change to how what size the photo will print at 300dpi.

The photo is fundamentally unchanged, as the number
of pixels remains the same.

For more on resolution, have a read of
http://graphicdesign.about.com/library/weekly/aa070998.htm


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"Paul De Lagrave" wrote in message
I am working with Version CS and have just upgraded to CS2. I just started noticing this and am looking for help, I bought a new digital camera that can shoot at 6.0 megapixels. When I shoot a picture at the highest setting and bring it into ps and maximize at 100%, it doesn’t look very clear. I also noticed that it is 72 dpi. I then started looking at other pictures that I had stored on my computer, pictures I had downloaded and pictures that people sent me, and they all came out to 72 dpi. So my question is do all photos open or convert to 72 dpi, what if I want a high resolution like 300 dpi what can I do to have a photo open at 300 dpi. I am asking because I know that 72 s for web and 300 is for print and what if I want a nice crisp image for print.

Thanks
M
MMnospam
Aug 10, 2005
"Paul De Lagrave" wrote in message
I am working with Version CS and have just upgraded to CS2. I just started noticing this and am looking for help, I bought a new digital camera that can shoot at 6.0 megapixels. When I shoot a picture at the highest setting and bring it into ps and maximize at 100%, it doesn’t look very clear. I also noticed that it is 72 dpi. I then started looking at other pictures that I had stored on my computer, pictures I had downloaded and pictures that people sent me, and they all came out to 72 dpi. So my question is do all photos open or convert to 72 dpi, what if I want a high resolution like 300 dpi what can I do to have a photo open at 300 dpi. I am asking because I know that 72 s for web and 300 is for print and what if I want a nice crisp image for print.

Thanks

Go to Image / Image Size,
make sure Resample Image is unchecked,
type 300 into the Resolution (make sure it’s pixels/inch).

The width & height dimensions will change to show what size the photo will print at 300dpi.

The photo is fundamentally unchanged, as the total number of pixels remains the same.

For more on resolution, have a read of
http://graphicdesign.about.com/library/weekly/aa070998.htm
M
Marcel
Aug 10, 2005
Hi Paul!

As Nospam said, Go to Image / Image Size, make sure Resample Image is unchecked, make sure it’s pixels/inch and simply type in the width or the height you want, say 6” width). The height and the # of pixels per inch will come up automatically.

For example, with my Canon Rebel XT (8MP), an image might turn out at 48 inches by 32 inches at 72 pixels per inch. If I uncheck "resample image" and divide the 48" by 8 to get 6", the height will automatically be divided by 8 and be 4". Resolution will be 576 pixels/inch. All you need do then is check "Resample image" and change the 576 to 300. Your size will not change, but the pixel count per inch will. In my case, the camera’s photo is in the ration of 3/2. Therefore, an image will be 6 x 4 if it’s the size you want. However, the 7 x 5 size would be 7 x 4.667. You would need then to crop it at that size (7 x 5). Same for 10 x 8 (which would be 10 x 6.667). In that particular case, the resolution would still be at 345.6 per inch.

What I do when I open my image in Photoshop (CS) is to crop it accordingly to size. Click on the cropping tool. Enter the Width and Height in the bar above as well as the resolution, say 300. Then crop the image. However large or small the crop is, it will retain the size and resolution specified.

Hope this helps,

Marcel

"Paul De Lagrave" wrote in message
I am working with Version CS and have just upgraded to CS2. I just started noticing this and am looking for help, I bought a new digital camera that can shoot at 6.0 megapixels. When I shoot a picture at the highest setting and bring it into ps and maximize at 100%, it doesn’t look very clear. I also noticed that it is 72 dpi. I then started looking at other pictures that I had stored on my computer, pictures I had downloaded and pictures that people sent me, and they all came out to 72 dpi. So my question is do all photos open or convert to 72 dpi, what if I want a high resolution
like
300 dpi what can I do to have a photo open at 300 dpi. I am asking because
I
know that 72 s for web and 300 is for print and what if I want a nice
crisp
image for print.

Thanks

R
RSD99
Aug 10, 2005
"Paul De Lagrave" wrote in message
I am working with Version CS and have just upgraded to CS2. I just
started
noticing this and am looking for help, I bought a new digital camera that can shoot at 6.0 megapixels. When I shoot a picture at the highest
setting
and bring it into ps and maximize at 100%, it doesn’t look very clear. I also noticed that it is 72 dpi. I then started looking at other pictures that I had stored on my computer, pictures I had downloaded and pictures that people sent me, and they all came out to 72 dpi. So my question is
do
all photos open or convert to 72 dpi, what if I want a high resolution
like
300 dpi what can I do to have a photo open at 300 dpi. I am asking
because I
know that 72 s for web and 300 is for print and what if I want a nice
crisp
image for print.

Thanks

JPEGs will usually default to 72 dpi.

The other posters have told you how to change that, but all of them seem to have neglected to tell you to save the picture in *another* format to preserve the new resolution.

I suggest that you retrieve the picture(s) from your camera,. change the size and resolution as required, and use ‘Save As …’ to save the image as either a TIFF or a PSD file to preserve the changes.
M
Marcel
Aug 10, 2005
Very wise.. I didn’t mention it is because I usually give that photo a NAME.jpg VS keeping its IMG_xxxx.jpg 😉 Although I still save it as jpeg when I’m satisfied with the result.
Marcel

"RSD99" wrote in message
"Paul De Lagrave" wrote in message
I am working with Version CS and have just upgraded to CS2. I just
started
noticing this and am looking for help, I bought a new digital camera
that
can shoot at 6.0 megapixels. When I shoot a picture at the highest
setting
and bring it into ps and maximize at 100%, it doesn’t look very clear. I also noticed that it is 72 dpi. I then started looking at other pictures that I had stored on my computer, pictures I had downloaded and pictures that people sent me, and they all came out to 72 dpi. So my question is
do
all photos open or convert to 72 dpi, what if I want a high resolution
like
300 dpi what can I do to have a photo open at 300 dpi. I am asking
because I
know that 72 s for web and 300 is for print and what if I want a nice
crisp
image for print.

Thanks

JPEGs will usually default to 72 dpi.

The other posters have told you how to change that, but all of them seem
to
have neglected to tell you to save the picture in *another* format to preserve the new resolution.

I suggest that you retrieve the picture(s) from your camera,. change the size and resolution as required, and use ‘Save As …’ to save the image
as
either a TIFF or a PSD file to preserve the changes.

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