Technique for taking pics of precious stones

Discussion in 'Photography' started by shrestha, Apr 20, 2004.

  1. shrestha

    shrestha Guest

    I see pics of precious stones, taken by prefessional as well as
    amateurs, with its clear and bright facets, angle and planes. How can
    I take pics like that? I have FUJI s2 digital camera and Nikon 70mm,
    90mm lense. Do i need special lense or filter to take these kinds of
    pics? Thanks for your response.
     
    shrestha, Apr 20, 2004
    #1
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  2. shrestha

    RSD99 Guest

    You should try some of the following:

    (1) For a background, use a seamless paper, cardboard, or high-quality NATURAL (wool or
    cotton) felt or velvet of whatever color you like. Synthetic wool's or velvets will
    "sparkle" ... and give you poor results.

    (2) For lighting, use a tent lighting setup. This is commonly used for reflective items
    such as jewelry, silverware, and so forth. Describing this would be a bit much for a
    USENET posting, but there are several web pages that can give you additional information.

    Ganoskin has a series on how to photograph Jewelry that is fairly good ... see
    http://www.ganoksin.com/borisat/directory/library/subject/9/1
    Go through the whole series ... you'll get a better idea of how a "pro" would approach the
    subject.

    Adorama has a fairly nice article on this
    http://www.adorama.com/catalog.tpl?op=article_080403

    CreativePro has an article
    http://www.creativepro.com/story/feature/19002.html

    PhotoNet has several offerings, including
    http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=000RqB
    http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=0000K0
     
    RSD99, Apr 20, 2004
    #2
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  3. shrestha

    photo35744 Guest

    Tent lighting or light box.
     
    photo35744, Apr 21, 2004
    #3
  4. shrestha

    shrestha Guest

    Can a tent or light box be used in photography of precious stones
    under the sun light? Must i have studio environment with light
    bulbs/tents/reflectors, etc as mentioned in these articles?

    What is the difference between taking pictures inside a tent and
    taking pictures under the shade of a tree? Does this question sound
    dumb enough? If it does, i am sorry for that.
     
    shrestha, Apr 22, 2004
    #4
  5. shrestha

    RSD99 Guest

    Replies in order ...

    Re" "...
    Can a tent or light box be used in photography of precious stones
    under the sun light?
    ...."

    It's *possible* ... but I personally wouldn't even try that. You would have very *poor*
    control over the light.


    Re" "...
    Must i have studio environment with light
    bulbs/tents/reflectors, etc as mentioned in these articles?
    ...."

    That's the best way ... however I've done setups similar to the ones described in my
    living room ... more than once!

    You *do* need to have the "bulbs/tents/reflectors, etc" to make a professional-quality
    photograph though. They can easily be made from things found at any reasonable hardware
    store ... PVC pipe, a shower curtain or white sheet, white and silver insulation (or
    "drywall") boards, etcetera.

    Re" "...
    What is the difference between taking pictures inside a tent and
    taking pictures under the shade of a tree?
    ...."

    Literally ... all the difference in the world.

    Re" "...
    Does this question sound dumb enough?
    ...."

    I hate to call *any* question "dumb" ... but this one really *is* getting close.
     
    RSD99, Apr 22, 2004
    #5
  6. shrestha

    \Smitty\ Guest

    Light tents are used to diffuse the light so that you don't get sparkly
    distracting highlight reflections. If you shoot in the shade then you won't
    get the best photos of shiny stuff. Use a piece of bleached muslin. It's
    coarse weave breaks up the light. Make a tent with it out of wire or sticks
    or plastic tubing. Light it on both sides with a couple of cheap halogen
    shop lights but don't set the fabric on fire. The fabric will also help with
    the color of the light. If you need a perfect shade of day light you can
    balance it out in photo shop by going to the hue/saturation menu. Pull down
    the box and change master to yellow. Using the saturation slider reduce the
    yellow by -30 or -40 or what ever it take to remove the yellow cast from the
    halogen lights and there you have it.
    Smitty
     
    \Smitty\, Apr 22, 2004
    #6
  7. shrestha

    Rob Novak Guest

    Or, alternately, use an 80B correction filter on the lens in the first
    place and eliminate the need to do drastic color correction (which may
    affect the color of the stone).

    Of course, the OP did state that they were using a digital camera. In
    that case, putting a piece of plain white typing paper inside the
    light box and white-balancing on it should be sufficient.
     
    Rob Novak, Apr 29, 2004
    #7
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