Inkjet inks printing gray or black do not necessarily provide a particularly good reflecting surface. They usually reflect more in one color or another, even though they look gray to your eye.
I use one of these: Photovision 14" Pocket One Shot Digital Target http://www.bhphotovideo.com/c/product/429982-REG/Photovision_DT14010_14_Pocket_One_Shot.html It does an excellent job. Fill the frame with the three bands and you get a dark point, white point, gray point indicator. Put it in the scene for a gray/white balance reference. Flip it around and use it as a small reflecting diffuser too. Folds up and fits in a jacket pocket. $40. On Tue, Mar 15, 2011 at 2:22 PM, Larry Colen <[email protected]> wrote: > I've shopped around for various grey cards, reference cards etc. While not > obscenely expensive, they aren't cheap either. One idea that I've had is > either very clever, completely stupid, or both. > > I have the color profile for the printer at my local costco. In theory I > could create a file completely digitally with various shades of neutral grey, > as well as a palette of reference colors, and have costco print up 4x6 prints > of it for $0.13 each, or $1.50 for an 8x12. Even if they aren't perfectly > dead-nuts on, they'll likely get me a lot closer than not using any sort of > greycard or color reference, and at that price I can afford to print up a > dozen to stick one in every camera bag I own. > > Likewise, something similar that was business card sized would easily fit in > my wallet. > > Is there a reason, that I'm missing, that this idea is guaranteed to be a > steaming pile of fail? > > If not, is there such a file that already exists? Maybe even one with a > focusing/resolution target, and something approximating a distance scale? > > -- > Larry Colen [email protected] sent from i4est > > > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- Godfrey godfreydigiorgi.posterous.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
