Treasure Mountain Mining * 40 Church Street, Greenfield, MA 01301 * (413) 774-5707

 

COLOR ACCURACY IN OUR
MINERAL PHOTOGRAPHS

People occasionally tell us that they think we take "the most beautiful crystal photos on the internet." We enjoy the compliments, but in truth, the stars of the show are the minerals themselves - bright red rhodochrosite, canary yellow sulfur, emerald green fluorite, and so on. When we take pictures, our eyes are focused on accurately capturing the true colors of these amazing minerals. So, here’s the deal on the colors in our photos.

We take all the pictures ourselves, and we try really hard to capture the exact color of each specimen in my photos. To do this, we start by using special lights which deliver light waves at 4700º Kelvin - as close as you can get to the wavelength of natural sunlight, which is 5000º Kelvin. That's the standard we shoot for. Other lighting, such as incandescent and fluorescent lights, gives out light at different wavelengths, which distorts the true daylight color. These lights make mineral specimens appear to be different colors than they are in natural sunlight. Incandescent lighting exaggerates the yellows, while fluorescent lights exaggerate the blue (“cool” light bulbs) or the reds (ordinary tubes).

After we’ve taken the photos, we adjust the resulting digital image using Photoshop software. This is necessary because even using 4700º lights, variations in the brightness of the light, the lens opening, and the shutter speed produce images which are different than what the eye perceives in full sunlight (too dark, too light, over-saturated, washed out, etc.). Before we make any adjustments, we have already color-corrected our monitors to professional red-green-blue (rgb) standards, ensuring that the colors we see on my monitor are as close to the "ideal" as possible. Then, if necessary, we make adjustments in Photoshop to bring the colors we are seeing on our monitors as close as possible to the perceived colors of the mineral specimen in full sunlight.

Naturally, we always try to make each mineral specimen look as good as it can look. We think of this step as the equivalent to posing for a picture in a professional photographers studio. A portrait photographer’s goal is to make his or her subject look their best, capturing an exact likeness in as flattering a light as possible. Think of the movie star who wants to be photographed on his or her "good" side." Similarly, we want the viewer to see each mineral specimen in its most flattering natural beauty. And, we purposely avoid pitfalls such as color exaggeration, distortion, or air brushing of blemishes. If we’ve done our job well, the result is a photograph that captures the specimen at its very best.

If your specimen does not look as good in your display area as it does in our photos, the first thing to check is the lighting. Are your specimens displayed under incandescent or fluorescent light? If so, that may be the source of the problem. For example, we've had customers complain that the specimen they received is not the same color as the photos showed. We usually ask them if they looked at the specimen in natural daylight, and when they answer "no," I tell them to go outside in the sunlight. Invariably they've called back sheepishly to apologize. To see if your specimens are being shown in their "true colors," try taking them out in the sun, and see if the colors look the same as on your monitor, or are they being distorted by your lighting.

Another common problem is the brightness of the lightning. We photograph our specimens using plenty of bright light - again, to show them at their best. Many people do not have bright, color accurate lighting for their mineral display. If you value color accuracy, you may want to consider investing in a good lighting system, using 4700º Kelvin SoLux M16 12V bulbs. If you do, I'm sure you'll be delighted seeing your specimens in their "true colors" - perhaps for the first time!

If you have any questions about this issue, please contact us for more information.

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