Black line surrounding high contrast subject.

[Lisa Nikodym]

Do you have the camera image-processing settings set to do in-camera sharpening?  That's what it sounds most like to me...  If so, try turning off sharpening and see if it changes things.

Lisa

[hovis]

Thanks

It looks better, I'll have to do some experiments. I've set the camera to adobe RGB, is this a good choice? I figured that although they may need more work it would give me more control over the end result. Can you let me know if you think this is a mistake.

Thanks again to both of you.

[hovis]

Hi all

I have a digital rebel, which I use to photograph my artwork. I've noticed when photographing plaster casts against a dark background that the cast develops a black line a few pixels wide around it's edge, varying from a crisp black on the light side to a more diffuse black on the shaded side, in areas of very low contrast between the cast and the background it disappears. Can anyone explain why this might be occurring and suggest possible solutions? Is it similar to 'fringing'?

The line is visible on screen when viewed at about 66%+

Thanks

[Jonathan Wienke]

It sounds like a USM sharpening artifact from in-camera sharpening turned up too high.

[Lisa Nikodym]

It looks better, I'll have to do some experiments. I've set the camera to adobe RGB, is this a good choice?

My view on the subject:
If you're just going to post images to the web straight from the camera, you're best off with sRGB because that's what works best for computer monitors.  If you're going to print the images, especially if you're going to do some adjustments to them first, adobe RGB is best.

Lisa