Progress so far: - Tested all 4 SD cards.
One occasionally lost its connection to the camera when I wiggled it, and another seemed to fit loosely in the slot and its connection seemed unreliable. I threw them away and ordered 4 new cards from B&H. Rick > On Sep 4, 2022, at 12:58 PM, John Francis <[email protected]> wrote: > > On Sun, Sep 04, 2022 at 11:01:30AM -0400, Rick Womer wrote: >> Last spring we took a walk in Morris Arboretum, where the spring blossoms >> offered lots of photographic fodder. Alas, when I got home, the card had >> thumbnail JPGs on it, but no DNG files. As usual I erased the card (SanDisk >> Extreme Pro) in the camera after transferring the files to my computer. >> >> Last week we toured Winterthur, a beautiful DuPont estate about an hour >> away. Again I took about a hundred photos. When i put the SD card into the >> reader, I got a screen full of thumbnails from Winterthur and the flea >> market in the parik a couple of weeks ago, all stirred together (even though >> the card had been erased). No DNGs. >> >> I have four SD cards, of which three were indistinguishable until I numbered >> them yesterday. I checked each of them with the Mac Disk Utility, and they >> all passed. >> >> Any ideas apart from buying a new set of cards? Is there any way to >> distinguish a card failure from a camera failure? >> >> Rick > > The most obvious reason for a perfectly readable card to contain only JPGs, > no DNGs, is that the camera has somehow got set to only write JPGs. I assume > you checked that, but ... > (Or, depending on which camera body you have, to write JPGs to one card, and > DNGs to a different card) > -- > %(real_name)s Pentax-Discuss Mail List > To unsubscribe send an email to [email protected] > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- %(real_name)s Pentax-Discuss Mail List To unsubscribe send an email to [email protected] to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

