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Post by sbreed on Feb 19, 2009 22:13:21 GMT -5
I need help please! I built a light box to photo my cabs and pendants but I can not get a good picture without a glare on the stone! Here are pics of my set up...........any ideas on what I am doing wrong? I am using 12 watt Daylight bulbs in both lamps. At $15 a pop, I figured I would get some good light!
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Feb 19, 2009 22:20:07 GMT -5
My box that I made has tracing paper on the top and sides. I put the light against the top.......and another on each side if necessary. That way there is no light shining directly on the front of the cab causing a glare.
Shannon
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Post by akansan on Feb 19, 2009 22:27:54 GMT -5
I do the same - have the light shine through the sides instead of through the front.
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Post by sbreed on Feb 19, 2009 22:31:01 GMT -5
I have material on there now, will take it off and try tracing paper.
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Post by akansan on Feb 19, 2009 22:33:29 GMT -5
Sheri, I have a couple layers of tissue paper on the sides of mine. Works great. Thin material would work as well - basically anything that allows light to shine through.
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Post by Woodyrock on Feb 20, 2009 1:26:00 GMT -5
Good photo shops have a fibreglass scrim made just for light boxes. Fiberglass because it is fireproof! Tissue does work, but also catches on fire quite readily. The fiberglass also diffuses better because the glass strands are going in all directions. A lot of light tents are made from a light weight nylon fabric due to the durability of nylon over fiberglass. Woody
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1rockhound
spending too much on rocks
Member since July 2008
Posts: 286
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Post by 1rockhound on Feb 20, 2009 1:28:39 GMT -5
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Post by akansan on Feb 20, 2009 9:10:13 GMT -5
Those are great tips. It really points out that I NEED a new camera. For my jewelry pics, I set my ISO to 100 - the other speeds, even auto, just catch too much light. (Which is funny, as I need the lights to take the shots...
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Post by Jack, lapidaryrough on Feb 20, 2009 11:35:14 GMT -5
www.3drender.com/glossary/colortemp.htm Kelvin Light index Scale, Using in door lighting for photos. The heat of the light source is Key in bright white photos. Myself i have tried the low WATT bulbs, and had yellow photos. If your flash is on when your taking a shot. the light source is to low on the Kelvin Scale for the camera e-eye to read, and the pre-red flash will come on to read the light source of the shot....... Checking the Kelvin Scale and the light out-put in kelvin to understand the lighting needed. Jack
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Post by Hard Rock Cafe on Feb 20, 2009 12:51:58 GMT -5
Yep, you need to diffuse your light source by using tracing paper, thin tissue paper, or a commercial diffuser. (Some people make a cheap diffuser out of a cool whip container with a hole in it for the lens and blasting it with light.)
As Jack was alluding to, you may have to set a manual white balance for your camera in order to get the colors correct.
Akansan: you'll want low ISO to eliminate noise and get the best color, anyway. You should be able to stop down the lens (use a bigger f-stop number) to compensate for too much light at a high ISO. A smaller aperture (bigger f-stop number) will give you more of the stone in focus, too.
Great link Jason!
Chuck
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Post by akansan on Feb 20, 2009 13:10:45 GMT -5
Yeah, I have no control over my f-stop that I can tell. I have limited control with this camera - would love to buy a new camera, but this one works for now.
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