Pixels per inch in PowerShot A70

I have a Canon PowerShot A70, which works just fine for me in most cases.
However, I am trying to take some photos for a book I am doing, and my
editor says they need them to be 300 pixels per inch. No matter what I do,
I can only get 72 per inch. I set resolution to Large and compression to
Superfine, but it didn't seem to make any difference. If I save the image
as TIF, rather than the default JPEG, it increases the pixel count to 96
pixels, but that's as high as I can get. Anyone have any suggestions?

The "in camera" resolution doesn't change the dpi count in the picture,
that's only for printing.
you have to change the dpi in a program like photoshop.
I you have it I can tell you how:
open the pic in photoshop, go to "image" menu, then "image size", change the
resolution to 300 pixels/inch, unchek the "Resample image" option, then OK
save the image, it's ready, now you have the same picture in 300 dpi




"Bob" escribió en el mensaje
. com...
I have a Canon PowerShot A70, which works just fine for me in most cases.
However, I am trying to take some photos for a book I am doing, and my
editor says they need them to be 300 pixels per inch. No matter what I do,
I can only get 72 per inch. I set resolution to Large and compression to
Superfine, but it didn't seem to make any difference. If I save the image
as TIF, rather than the default JPEG, it increases the pixel count to 96
pixels, but that's as high as I can get. Anyone have any suggestions?

Bob wrote:
I have a Canon PowerShot A70, which works just fine for me in most cases.
However, I am trying to take some photos for a book I am doing, and my
editor says they need them to be 300 pixels per inch. No matter what I do,
I can only get 72 per inch. I set resolution to Large and compression to
Superfine, but it didn't seem to make any difference. If I save the image
as TIF, rather than the default JPEG, it increases the pixel count to 96
pixels, but that's as high as I can get. Anyone have any suggestions?


Ignore the 72 ppi message. It means nothing. It is just a way that the
Camera/Photo Editor does its "bookkeeping".
If you have Photoshop, just set the crop tool to the dimensions you want
the image to be, e.g. 4"x6" and set the resolution to 300 ppi. Then drag
the pointer across your picture until you like the composition and click
ENTER.
PS will automatically crop your image to the exact size you specify and
will resample the image to exactly 300 ppi, in one fell swoop.
If you then go to IMAGE IMAGE SIZE, you will see that your image is
4"x6" and has a resolution of 300 ppi, just as your editor specified.
Bob Williams

Bob wrote:
I have a Canon PowerShot A70, which works just fine for me in most cases.
However, I am trying to take some photos for a book I am doing, and my
editor says they need them to be 300 pixels per inch. No matter what I do,
I can only get 72 per inch. I set resolution to Large and compression to
Superfine, but it didn't seem to make any difference. If I save the image
as TIF, rather than the default JPEG, it increases the pixel count to 96
pixels, but that's as high as I can get. Anyone have any suggestions?


Ignore the 72 ppi message. It means nothing. It is just a way that the
Camera/Photo Editor does its "bookkeeping".
If you have Photoshop, just set the crop tool to the dimensions you want
the image to be, e.g. 4"x6" and set the resolution to 300 ppi. Then drag
the pointer across your picture until you like the composition and click
ENTER.
PS will automatically crop your image to the exact size you specify and
will resample the image to exactly 300 ppi, in one fell swoop.
If you then go to IMAGE IMAGE SIZE, you will see that your image is
4"x6" and has a resolution of 300 ppi, just as your editor specified.
Bob Williams

"Bob" wrote in news:VL3wd.60065$QJ3.23355
@newssvr21.news.prodigy.com:

Anyone have any suggestions?

Get a photo editor so you can actually work with your images after they are
shot. It doesn't matter what the resolution is set to coming off the
camera. This can be changed.

"Bob" wrote in
. com:

I have a Canon PowerShot A70, which works just fine for me in most
cases. However, I am trying to take some photos for a book I am doing,
and my editor says they need them to be 300 pixels per inch. No
matter what I do, I can only get 72 per inch. I set resolution to
Large and compression to Superfine, but it didn't seem to make any
difference. If I save the image as TIF, rather than the default JPEG,
it increases the pixel count to 96 pixels, but that's as high as I can
get. Anyone have any suggestions?

This is a common misunderstanding. The actual truth is that
the PPI (sometimes called DPI) setting for your image is
(almost always) totally uninteresting. You shall ignore it.

Lets say that you want to print a 3x4 inch picture in your book.
Then this picture needs to be 900x1200 pixels, if you shall get
300 pixels per inch. That's all folks. Nothing else matters.

So - if your editor wants exactly 300 PPI, then you have to
rescale the picture in your photo editor to (in the above example)
900x1200 pixels.

But - if your eaditor really means (which is more likely) the the
image shall be 300 PPI or better, then you don't have to rescale at
all as the A70 picures probably really are large enough to print
at 300 PPI in your book.


/Roland

"Bob" wrote in
. com:

I have a Canon PowerShot A70, which works just fine for me in most
cases. However, I am trying to take some photos for a book I am doing,
and my editor says they need them to be 300 pixels per inch. No
matter what I do, I can only get 72 per inch. I set resolution to
Large and compression to Superfine, but it didn't seem to make any
difference. If I save the image as TIF, rather than the default JPEG,
it increases the pixel count to 96 pixels, but that's as high as I can
get. Anyone have any suggestions?

This is a common misunderstanding. The actual truth is that
the PPI (sometimes called DPI) setting for your image is
(almost always) totally uninteresting. You shall ignore it.

Lets say that you want to print a 3x4 inch picture in your book.
Then this picture needs to be 900x1200 pixels, if you shall get
300 pixels per inch. That's all folks. Nothing else matters.

So - if your editor wants exactly 300 PPI, then you have to
rescale the picture in your photo editor to (in the above example)
900x1200 pixels.

But - if your eaditor really means (which is more likely) the the
image shall be 300 PPI or better, then you don't have to rescale at
all as the A70 picures probably really are large enough to print
at 300 PPI in your book.


/Roland

"Bob" wrote in
. com:

I have a Canon PowerShot A70, which works just fine for me in most
cases. However, I am trying to take some photos for a book I am doing,
and my editor says they need them to be 300 pixels per inch. No
matter what I do, I can only get 72 per inch. I set resolution to
Large and compression to Superfine, but it didn't seem to make any
difference. If I save the image as TIF, rather than the default JPEG,
it increases the pixel count to 96 pixels, but that's as high as I can
get. Anyone have any suggestions?

This is a common misunderstanding. The actual truth is that
the PPI (sometimes called DPI) setting for your image is
(almost always) totally uninteresting. You shall ignore it.

Lets say that you want to print a 3x4 inch picture in your book.
Then this picture needs to be 900x1200 pixels, if you shall get
300 pixels per inch. That's all folks. Nothing else matters.

So - if your editor wants exactly 300 PPI, then you have to
rescale the picture in your photo editor to (in the above example)
900x1200 pixels.

But - if your eaditor really means (which is more likely) the the
image shall be 300 PPI or better, then you don't have to rescale at
all as the A70 picures probably really are large enough to print
at 300 PPI in your book.


/Roland