resolution for printing?

"Peter" wrote in message

Hi all, I’m currently cropping some images using the marquee and its fixed aspect ratio. Now once I’ve cropped my image I then resize to for example 4 x 6 based on the ratio. Now I don’t check off the resample cause I don’t think I need to (just changing the numbers in the image size box) however on occasion It leads me into the 400 ppi resolution. Would this have a bearing on the printer, or is more resolution better. Is there something I should be considering?

It depends on your source material and your printer. The only way to determine the best resolution is to experiment. But in general, on most home inkjet printers there’s an upper limit to how much detail can be resolved, somewhere in the range of 240-480dpi.

"Peter" wrote in message

Hi all, I’m currently cropping some images using the marquee and its fixed aspect ratio. Now once I’ve cropped my image I then resize to for example 4 x 6 based on the ratio. Now I don’t check off the resample cause I don’t think I need to (just changing the numbers in the image size box) however on occasion It leads me into the 400 ppi resolution. Would this have a bearing on the printer, or is more resolution better. Is there something I should be considering?

the printer driver will "throw out" anything above it’s maximum, so higher can’t hurt.
I have printed files at 72 on inkjet with no loss of quality, as long a they don’t have to be printed on a magazine, or good press or have to be blown up larger (very bad loss pixels will be seen).

If you have plenty of info in the cropped area it may be preferable not to re-sample. if you are cropping way into a small file though re-sampling to higher res may look better.

If you are really unsure of print settings there is a wizard to resize the images under HELP>resize image.
It will ask if the image is for print or web, linescreen and other info and it selects the res for you.

If you want to crop to a fixed ratio and you intend the output to be a certain printed size – ie 6"x4", why don’t you crop to the size you intend printing at? you can also choose the dpi at the same time. Just as a matter of interest – in his book ‘The Photoshop CS book for digital photographers’ Scott Kelby indicates that we don’t need a very high dpi for home printing, in fact he can use 150dpi for an 11" x 9" photo!!
He also gives lots of tips on cropping and making your own crop presets, although this is also in the help file.

I don’t have a quality printer here at home but I have been printing at a local lab and I believe its a "noritsu" unfortunately I don’t have the specs but I will look. I believe you’ve all answered my question and reassured me that at this time I’m not really doing any damage to my files in the sense of noise or other. Thanks
"Peter" wrote in message

Hi all, I’m currently cropping some images using the marquee and its fixed aspect ratio. Now once I’ve cropped my image I then resize to for example 4 x 6 based on the ratio. Now I don’t check off the resample cause I don’t think I need to (just changing the numbers in the image size box) however on occasion It leads me into the 400 ppi resolution. Would this have a bearing on the printer, or is more resolution better. Is there something I should be considering?

On an ink jet printer, it is always a good idea to set your resolution at 300ppi. When you start getting into high end printing (like litho or sometimes flexo), the resolution depends on what LPI (lines per inch) the final job will be printed. If for example, the printer say they want to print at 150 LPI you would multiply that number by 2 to give you the pixel resolution. For 150 LPI, you would use 300ppi, for 200 LPI, you would use 400ppi. Never try to increase resolution, but it never hurts to have too much resolution.

On 4 Aug 2005 13:35:41 -0700, "Rory" wrote:

On an ink jet printer, it is always a good idea to set your resolution at 300ppi.

….unless you’re using an Epson….

—

Hecate – The Real One

Fashion: Buying things you don’t need, with money
you don’t have, to impress people you don’t like…

"Hecate" wrote in message

On 4 Aug 2005 13:35:41 -0700, "Rory" wrote:

On an ink jet printer, it is always a good idea to set your resolution at 300ppi.

…unless you’re using an Epson….

—

Hecate – The Real One

Fashion: Buying things you don’t need, with money
you don’t have, to impress people you don’t like…

Or a Noritsu …

In article ,
"Rory" wrote:

On an ink jet printer, it is always a good idea to set your resolution at 300ppi. When you start getting into high end printing (like litho or sometimes flexo), the resolution depends on what LPI (lines per inch) the final job will be printed. If for example, the printer say they want to print at 150 LPI you would multiply that number by 2 to give you the pixel resolution. For 150 LPI, you would use 300ppi, for 200 LPI, you would use 400ppi. Never try to increase resolution, but it never hurts to have too much resolution.

False. (I’d agree for a working or ‘master’ version, though.) Although disk space and bandwidth are no longer quite the issues they once were, an excessively high-resolution image will soften on output. You can’t judge the sharpness properly unless the resolution is at least ‘in the ballpark’. The optimal range is between 1.5 and 2 times the halftone screen ruling.

—
Odysseus

…unless you’re using an Epson….

The story to fit this sensational headline has not turned up yet.

"/\BratMan/\" wrote in message

…unless you’re using an Epson….

The story to fit this sensational headline has not turned up yet.

That’s because it’s really an OLD story.

The Epson printers are built with a mechanical design that is based on 720 dpi. Best resolutions are submultiples of that

360 dpi
240 dpi
180 dpi (if you really dare go that low)
etcetera

On Fri, 5 Aug 2005 14:20:56 +0100, "/\\BratMan/\\" wrote:

…unless you’re using an Epson….

The story to fit this sensational headline has not turned up yet.

My, you haven’t been reading the printer or Photoshop newsgroups very long have you?

—

Hecate – The Real One

Fashion: Buying things you don’t need, with money
you don’t have, to impress people you don’t like…