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Re: lighting angle and color.

mgoodm3mgoodm3 Posts: 17,497 ✭✭✭
Been sitting around the house today on my day off waiting for the fedex guy to get here and decided to do a lighting experiment. There have been a few questions about lighting angle and color tossed around recently and I decided to show the difference in color with angle. The color gets much more vivid as the camera and lights get closer together, and closer to the coin acting as a mirror. This works well with raw coins, much more difficult to make it work for slabbed coins. Well, there you go, some dry pseudoscientific hum-drum to brighten your day.

Pic #1: Camera at 90 degrees and light at 70 degrees (20 degrees off vertical).

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Pic #2: Camera at 90 and light at 80.

image

Pic #3: Camera and light both 5 degrees off of vertical but in different ways (using coin as a mirror). Functionally like camera and light at 90 (but camera and light can't occupy the same space)

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coinimaging.com/my photography articles Check out the new macro lens testing section

Comments

  • ttt for some excellent info !! image
  • lordmarcovanlordmarcovan Posts: 43,530 ✭✭✭✭✭
    Neat clashmarks, there. Can barely see 'em in picture #1 (where they look a little more like slidemarks or friction); they aren't totally obvious in picture #2, though they are beginning to be noticeable; and they're nice and clear in picture #3, as are the colors.

    Great coin, great pictures.

    Explore collections of lordmarcovan on CollecOnline, management, safe-keeping, sharing and valuation solution for art piece and collectibles.
  • wayneherndonwayneherndon Posts: 2,356 ✭✭✭
    What about having the camera at 90 and a light at 95 and another at 85. Would that be the equivalent of both at 90?

    WH
  • nwcsnwcs Posts: 13,386 ✭✭✭
    But which picture of these most accurately represents the coin? Cause I have seen that a lot of light, even when not washing out the coin, can bring to life color that you otherwise wouldn't see in normal conditions.
  • poorguypoorguy Posts: 4,317
    That third picture is excellent. Which type of camera do you use? and do you use a macro lens?
    Brandon Kelley - ANA - 972.746.9193 - http://www.bestofyesterdaycollectibles.com
  • mgoodm3mgoodm3 Posts: 17,497 ✭✭✭
    They all represent the coin well. They are just viewing it from different angles. When you look at the coin in good light and see the "flash" of the coin it looks like #3 because you are getting the reflection just like the camera does on the third pic. Oh, I use a nikon D70 and a 105 mm macro lens.
    coinimaging.com/my photography articles Check out the new macro lens testing section

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