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Thread: X-Rite 810 Reflected Reading Confirmation

  1. #1

    X-Rite 810 Reflected Reading Confirmation

    I am trying to calibrate my RH Analyser Pro using an X-Rite 810. There is a stouffer patch kit with a 'paper white', a 0.04, a 90%, and a DMAX target. When I read the 0.04 patch it reads .14 on my densitometer in Visual mode. Does this mean that my 810 is out of calibration? Or is this correct and I'm just miss interpreting the results.

    The aim here is to make test strips and match a certain shade to the 0.04 patch, which I thought would be easiest to do with a densitometer rather than visually.

    The unit came with a Transmission calibration target, but not a Reflection target.

  2. #2

    Join Date
    Jan 2013
    Location
    Madisonville, LA
    Posts
    2,030

    Re: X-Rite 810 Reflected Reading Confirmation

    I’ve bought old MacBeth reflection calibration plaques at auction and use them to verify the calibration of my Ihara 710. So have you ever calibrated it?

  3. #3

    Re: X-Rite 810 Reflected Reading Confirmation

    I just pulled it out of the box from the sale today. It did come with the transmission calibration card and I went through that, it checks out.

  4. #4

    Re: X-Rite 810 Reflected Reading Confirmation

    I just took a reading of a grey card and that gave me .61, and I took a reading of paper white from a sheet of FB glossy and I got .11. Do these sound close to correct? My understanding was that a grey card should read about .7-.75...

  5. #5

    Join Date
    Jan 2013
    Location
    Madisonville, LA
    Posts
    2,030

    Re: X-Rite 810 Reflected Reading Confirmation

    As long as it reads the calibration card correctly, that’s all I would worry about. I have a 10 step Macbeth calibration plaque that I use to check linearity

  6. #6
    Eric Woodbury
    Join Date
    Dec 2003
    Posts
    1,332

    Re: X-Rite 810 Reflected Reading Confirmation

    Not all grey cards are the same grey (zone). And they have various reflection properties, too.

    I don't know if it would work or not, but a really good 'white' is zinc oxide or titanium oxide. Used for sunscreen and paint. Just a thought.

  7. #7

    Re: X-Rite 810 Reflected Reading Confirmation

    Well I have the calibration card from RH Designs. It originally read the .04 patch at .15 so that's quite a bit off. I probably shouldn't have done so but I basically messed with the calibration tools until the .04 patch gave the correct reading within about .01.

    Is there a cheaper calibration tool than the XRite patch? They are currently listing it for $164.

  8. #8

    Re: X-Rite 810 Reflected Reading Confirmation

    Which X-Rite patch is this?
    The Container Lab
    www.thecontainerlab.com/blog

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