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Hello. everyone.
I want to share how I take a picture of glass art. I hope it is helpful.

things you need

1. a "good camera". - It doesn't have to be expensive one, but you might want to have a SLR(single-lens reflex) camera. Digital or Film
2. Tripod
3. 2 or 3 lights with softbox
4. a black plexiglass
5. a white plexiglass (not clear plexiglass)
6. space - Bigger space is always better. Glass reflects everything.

Setting

Black background
I personally use 2 lights with soft box for black background picture.(see the first image)

White Background
If the sculpture is clear glass, use white background with back light and 1 or 2 side light (see the third image).

Tips

Use a plexiglass plate, that is thin enough to bend. Make sure not to bend the plexi more than 90 degrees. This will prevent an awkward reflection behind the sculpture, which almost makes the image look out of focus.

If you don't like reflection on plexiglass, use frosted plexiglass. This is easier to work with, but if you are trying to get a reflection under the sculpture it is worth the trouble to go with plexiglass with a more sleek finish.

Set one of the softbox lights brighter than the other to have enough volume.
You might want to adjust height as well.

Use a higher aperture(5.6-8) to have a clear in-focus image.
You shutter speed will be slower when you use a higher aperture. That's why you need a tripod.

The best lens to use is a 50 mm lens. Its degree of view is much like the human eye and it's also a quick lens (means that you can use higher aperture with faster shutter speed),
50mm 1.8f lenses from most brands cost about $90-$120. There is a 50mm with 1.4f, but It is much more expensive. I recommend the 50mm 1.8f lens to save some money, without affecting the quality of the picture.

If you have the space you can step back to get everything within your eye lens or viewfinder. If you do not have that much space you can still use a wide angle or zoom lens. However, be careful, since a wide angle or zoom lens tend to distort the form and shape of your sculpture.

If you have remote controller or shutter release, USE it. If you don't, use the camera's timer feature. This will prevent moving your camera when you actually take the picture.

If you use a digital camera, make sure to use a right white balance setting (custom setting). Studio light bulb should have information about its kelvin scale(ex: 3200k, 4000k...). Set same Kelvin scale in custom white balance setting of your camera.

If you use a digital camera, use the Raw file format as the saving method. The RAW file format has many advantages. If you would like more info on that, please check out the following website: http://www.cambridgeincolour.com/tutorials/RAW-file-format.htm. In the RAW format, you can also adjust white balance, sharpness, etc. in your computer. It means that you don't have to worry about those settings when you are taking pictures. Many PC and Mac applications (such as Adobe Photoshop, Adobe Lightroom, Apple Aperture, Nikon Capture) can handle most raw file format.

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If you want to add any tips, or have suggestions and opinions, please feel free to write any comments. I will update this post to answer any questions.

Jung.