[Nhcoll-l] Color Cards

Tue Apr 30 15:24:02 EDT 2019

I recently purchased a 5 pack of these for about $35 from our local camera store - http://www.silvestricamera.com/ita/catalogo/prodottoeng.asp?ID=QP201

I have successfully cut them up into smaller cards for gray scale for use in wet collection photo tanks.  I laminated the card and affix it to the front glass using magnets to produce images like the attached.  Bonus is that it has a scale bar.  These images are then color corrected, the color chart Photoshopped out, background cleaned up and scale bar and copyright statement digitally reinserted to create the attached for selected images.

Andy

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Andy Bentley
Ichthyology Collection Manager
University of Kansas
Biodiversity Institute
Dyche Hall
1345 Jayhawk Boulevard
Lawrence, KS, 66045-7561
USA

Tel: (785) 864-3863
Fax: (785) 864-5335 
Email: abentley at ku.edu  
http://ichthyology.biodiversity.ku.edu
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-----Original Message-----
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Callomon,Paul
Sent: Tuesday, April 30, 2019 12:35 PM
To: James Erdmann <muddynaturalist at gmail.com>; Nhcoll-l at mailman.yale.edu
Subject: Re: [Nhcoll-l] Color Cards

If all you need is black, white and 18% gray (to set the camera's white point) then I use QP 101 cards, which are cheap enough to cut up if necessary. This assumes that your lighting has a high enough color temperature to give roughly true color (we use studio flashes that are over 5000K).

PC

-----Original Message-----
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of James Erdmann
Sent: Tuesday, April 30, 2019 12:01 PM
To: Nhcoll-l at mailman.yale.edu
Subject: [Nhcoll-l] Color Cards

Caution: This message came from outside of Drexel. Do not click links or attachments unless you expected this email.

Hello All,

I am building a simple platform to photograph small objects (20–50mm), and would like to include a color reference chart for color calibration and quantification projects. The problem is that most professional-grade charts are much larger than is practical (particularly the X-Rite ColorChecker line). The one I have found that is of workable size (2x3”, CameraTrax 24ColorCard) is not very high quality. I have heard of people cutting up the larger charts, but would like more information before taking scissors to a $100+ USD piece of equipment. Any thoughts/suggestions?

Thank you,

James
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