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cameraman51
8th of July 2008 (Tue), 19:26
I'll be photographing rings, bracelets, necklaces and earings for the forseeable future. It's very challenging and quite enjoyable. I'd like a little advice re two facets of the process (pun intended). First there is a jewlery style called Pave. It's a bunch of small diamonds mounted in a field of textured metal, usually platinum. Here's an example -not mine -

http://us.st12.yimg.com/us.st.yimg.com/I/jewelbasket_2007_361128476

My work is proprietary so I can't publish it here but this image illustrates the problem. Our products have less stone and more metal and it's hard to differentiate the stone from metal. I've dealt with that by sandwiching curved plexiglass around the product. The problem is that like this photo the facets are not well defined because there is not much black in the stones. I think there might be a way to add blacks by making two exposures. One like I've described and the second knocking out the back lights and creating a much darker secondary image. My client is using CS. Is there a layer blending function that will intergrate the blacks of the underexposed layer with the low key main image to create an image with good internal contrast.

Second, these images will be displayed online in 480w x 360h boxes. What workflow woud yield the best detail after cropping and resizing.

I know I'm asking a lot and I appreciate your thoughts.

blinded
8th of July 2008 (Tue), 19:41
If you shoot in RAW, you can adjust the blacks slider in ACR, or you can use curves, or you can do leveling in Photoshop. If you really want to be good, you could try taking 2 exposures, and using the darker as a separate layer, use one of the darken blending modes and tweak with opacity. Or you could also try using a layer mask to fine tune the selection.

Since I am not a jewelry shooter, I can't really offer much advice, and for a good workflow, maybe making actions or process one picture and use the same style of work for the group of image.s

Sageg
8th of July 2008 (Tue), 19:48
I think you can also really sharpen the diamonds to make them stand out.