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  1. #1
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    You know it's just a thought and something I may try out since I know of some brands that have a hard temper and at least one known for a medium temper.

  2. #2
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    Ain't it fun how many ways we can use these tools. To me that's a lot of the fun experimenting with different tools and methods. Sometimes you get a nice surpise and sometimes a dismal failure but it's still a good time:-)

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    Senior Member janivar123's Avatar
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    May be a little beside the point here
    Dont have a coticule yet so im not able to test

    from (1895) Essay on Barbers' Razors, Razor Hones, Razor Stropes & Razor Honing
    Quote: use water, oil or lather
    Quote: rub with a rub stone untill a thick lather of a rub stone is formed

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    The hones are segregated by those used with water/shaving lather and those used with oil. Almost always an oil stone and an Escher, Thuringian and Coticule. Oil stones like a Turkey Stone etc are different.
    The old books normally mean use a rubber stone on Escher's as well as Thuringian's. Shaving lather on Coticules back then.

  7. #5
    At this point in time... gssixgun's Avatar
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    Default A new idea for stone/hone pics

    This is something that Gerrit/deighaingeal and I were discussing over at WSW that perhaps when we are taking pics of stones, that we should all try using a plain white background...

    This is Standard #92 Brightness printer paper for a background on the same Coticule as above... No adjustments after the fact other then to crop the pic...


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  8. #6
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    That is a great idea.I have been discussing a coticule that is in another thread with Jarrod of TSS and the shades of the coticule picture are off from from what I believe the actual colors to be now. i will use the white background in any new pictures from now on. Thanks.
    Last edited by life2short1971; 11-16-2010 at 06:08 PM.

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    Good idea Glen that way we can get a standardized feel for the true color of various items.

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    Senior Member blabbermouth JimmyHAD's Avatar
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    Quote Originally Posted by gssixgun View Post
    This is something that Gerrit/deighaingeal and I were discussing over at WSW that perhaps when we are taking pics of stones, that we should all try using a plain white background...

    This is Standard #92 Brightness printer paper for a background on the same Coticule as above... No adjustments after the fact other then to crop the pic...
    Glen, that coticule looks a lot like my 8x3 combo that came from Ardennes by way of Howard at the perfect edge a few years ago. It is yellow but has a lot of pink bits in it and is a great stone. Of all of the coticules I have it is one of my favorites for the way it performs.
    Be careful how you treat people on your way up, you may meet them again on your way back down.

  11. #9
    Know thyself holli4pirating's Avatar
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    When I photograph coticules, I draw a rainbow with Crayola markers on white paper to give a sense of the white balance and color levels. I also find that using the cameras flash with auto white balance seems to help a lot.

    Here is an example:
    Attached Images Attached Images  

  12. #10
    This is not my actual head. HNSB's Avatar
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    Quote Originally Posted by gssixgun View Post
    This is something that Gerrit/deighaingeal and I were discussing over at WSW that perhaps when we are taking pics of stones, that we should all try using a plain white background...

    This is Standard #92 Brightness printer paper for a background on the same Coticule as above... No adjustments after the fact other then to crop the pic...
    OFF TOPIC:

    This is a long post, so I'm going to put the most important point first... I propose that if we want a system for standardized colors, that anyone photographing stones use a set of white, gray, and black cards for adjusting color balance. You can order cards from the links below, WilsonArt has free ones (shipping included) that are pretty close to commercial ones. The set on Amazon will be *very slightly* more accurate, but I don't think it will be that big of a difference for our purposes.

    Now to the longwinded stuff:
    The problem with getting accurate colors lies in the temperature, tint, and saturation of the photos... Most cameras will automatically adjust these things, but they are not 100% accurate. In fact, many cameras automatically increase color saturation because most photos will look better with a little more dramatic saturation and contrast. When marketing to consumers, most are looking for the camera that produces the best pictures, not necessarily the one that renders color most accurately.
    All of these things can be adjusted later, if you can adjust to a known. For instance, in the pics above, your #92 brightness paper has a bluish hue to it. That is probably a combination of color temperature being too cool, and the tint being shifted a bit toward magenta. Attached below are the same images using the paper as a white point for adjustment. That *might* render colors more accurately, and it might not... It also doesn't compensate for saturation. When I've taken photos of stones in the past, if I wanted to represent them 100% accurate, I've actually held the stone up to my monitor and made adjustments to get it just right.

    Now, even if I get a perfect representation of color on my monitor, it doesn't mean that you're seeing the same thing on your monitor... I am guessing that less than 0.5% of SRP users are viewing color calibrated monitors, which means that how colors render on my calibrated monitor probably don't look the same as they do on your monitor. The amount of sunlight, vs tungsten light, vs flourescent lighting in the room that you are viewing your monitor, and even the colors of the walls and carpeting will all have an impact on color rendition.

    Sooo.... Now that I've written a dissertation on why we will never get 100% accurate colors of stones over the internet, here's my recommendation as to how to get them as close as possible:

    1. We need to have standard (correct) white balance in the photographs. The standard white paper is on the right track... It would be best to photograph the stones with a standard white, a neutral gray, and a standard black card.
    You can order a set on Amazon for $18.99: Amazon.com: Digital Grey Kard Premium White Balance Card / Gray Card for Digital Photography: Camera & Photo
    OR... if you want free ones that will get you really really close, order the free sample chips from WilsonArt (get the matte ones)
    https://samples.wilsonartcontract.co...e-d354-60.aspx
    https://samples.wilsonartcontract.co...ea-d90-60.aspx
    https://samples.wilsonartcontract.co...k-1595-60.aspx

    2. If your camera can lock white balance from your white or gray card, do that. (consult your manual for instructions)
    If the camera doesn't do custom white balance, then take a photo of the stone with your color cards in the photo. With a photo editing program that is capable of adjusting white balance (Photoshop if you have it) or the Gimp, which is free: GIMP - The GNU Image Manipulation Program adjust the white balance (set the white point, gray point, and black point with the cards).

    3. Adjust the saturation of the image manually to get the final bit of accuracy.

    (Again, this won't get the photos to 100% on everyone's monitor, but it will get them as close as we possibly can)

    Finally... If that is too confusing for anyone: If you get a set of cards, and need help adjusting the white balance I'm more than happy to help out. Just send me a PM with the photo. It's a quick and easy adjustment to make if you take a picture of the stone and all three cards together. I won't be able to adjust the saturation without actually seeing the stone, but we can at least get pictures that are closer.
    Attached Images Attached Images   
    Last edited by HNSB; 11-16-2010 at 06:56 PM.

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