Nice shots once again, DrBill. You may have already posted about this, but when you shoot your pics, are the LC laying flat? And do you use an external light source (or 2) to evenly light the cards?
Your pics are always so evenly lit, crisp and sharp 
Thanks - I copy the cards two ways.
(1) If they fit on my Epson XP-960 scanner (8 1/2 x 11), I scan them to 1200 dpi high resolution .tifs, then run them through Lightroom to get the full black/white dynamic range before exporting to sRGB jpgs.
(2) Larger cards/posters are photographed with a Canon 5D MK II full frame digital camera using either a 100mm f/2.8L or 24-70mm f/2.8L lens, depending on the size of the card or poster. The camera is mounted on a tripod for steadiness, and a single Canon 600 EX-RT flash with diffuser is bounced off the ceiling and surrounding whiteboards to attempt even lighting. I really need a second flash to do this right. Some lighting unevenness can be corrected in Lightroom (but it's a pain in the ass). The resulting in-camera raw files are imported into Lightroom along with a shot of my Passport Color Checker. This handy little tool is used to correct color balance and exposure due to white balance shifts from surrounding light reflections and camera sensor shifts (and can be seen in my post of the fake Aliens LC from tloce). The files are then exported from Lightroom again as sRGB jpgs.
Of course, the scanned cards are kept flat by the scanner lid. I photograph the rest as they lie on the floor with the camera suspended over them on a short boom. After lots of time adjusting the camera so it's level (leveling bubble on the tripod head helps), I use an f/8 or smaller aperture to get the broadest depth of field possible so the edges stay in focus if there's any slight curling. A high output flash is a big help, allowing a small apertures to get the proper exposure.
The LCs are easy - now that I've started doing posters, I really need a second flash for the best lighting.
