descreen on or off?

I just scanned the same picture twice. Once with Descreen off but the Unsharp Mask on, the second with Descreen on and no Unsharp Mask (won’t

me pick both at the same time- I assume that’s standard?). The file with Descreen on is 1.25 MB, while the one with it off is 2.5 MB. Any reason

the discrepancy? I’m just wondering why the first file is so small. Am I losing information and, as a result, picture quality?

Is there a general consensus on the effectiveness of Descreen? Is there a better way to fix the moir

"Nikko" wrote in message

I just scanned the same picture twice. Once with Descreen off but the Unsharp Mask on, the second with Descreen on and no Unsharp Mask (won’t

let

me pick both at the same time- I assume that’s standard?). The file with Descreen on is 1.25 MB, while the one with it off is 2.5 MB. Any reason

for

the discrepancy? I’m just wondering why the first file is so small. Am I losing information and, as a result, picture quality?
Is there a general consensus on the effectiveness of Descreen? Is there a better way to fix the moir

I just scanned the same picture twice. Once with Descreen off but the Unsharp Mask on, the second with Descreen on and no Unsharp Mask (won’t let me pick both at the same time- I assume that’s standard?). The file with Descreen on is 1.25 MB, while the one with it off is 2.5 MB. Any reason for the discrepancy? I’m just wondering why the first file is so small. Am I losing information and, as a result, picture quality?

Is there a general consensus on the effectiveness of Descreen? Is there a better way to fix the moiré (or whatever it’s called – sorry, I’m a novice) using other software? I have both Photoshop 6.0 and Elements 2.0, should either of those help. Or is it better to make the adjustment with the scanner itself?

Any advice you can pass along to this newbie would be much appreciated. Thanks!

"Marvin Margoshes" wrote in
news::

Disregard that completely – exactly the opposite is true. It’s better to descreen at scan time.

A possible reason for the size difference is some scanners limit the resolution they will use in Descreen mode. A second option is that you are saving in JPEG; descreening can defocus an image, which compresses better, sometimes remarkably so.

"Eric Gill" wrote in message

"Marvin Margoshes" wrote in
news::

Disregard that completely – exactly the opposite is true. It’s better to descreen at scan time.

A possible reason for the size difference is some scanners limit the resolution they will use in Descreen mode. A second option is that you are saving in JPEG; descreening can defocus an image, which compresses better, sometimes remarkably so.

I guess I’m confused. The image I descreened does indeed look less sharp (i.e. less focused). Isn’t this bad?

Am I missing something?

"Eric Gill" wrote in message

"Marvin Margoshes" wrote in
news::

Disregard that completely – exactly the opposite is true. It’s better to descreen at scan time.

A possible reason for the size difference is some scanners limit the resolution they will use in Descreen mode. A second option is that you are saving in JPEG; descreening can defocus an image, which compresses better, sometimes remarkably so.

I guess I’m confused. The image I descreened does indeed look less sharp (i.e. less focused). Isn’t this bad? Am I missing something?