John,

Thanks for your reply.

What I mean by a lost DNG is a bit embarrassing: I took the card out of the 
camera, with 171 shots on it. I loaded them into my photo hard drive, removed 
the card, and then started a backup to a different hard drive. Then I went 
downstairs.

Not being sufficiently cautious, I then erased the card (but did not reformat 
it). After dinner I went upstairs again, and was horrified to find my photo 
hard drive periodically clicking, but clearly comatose. The backup hadn’t 
begun. Aargh!

The next day (on the advice of a friend who works with Macs for a living, and 
whose wife is a pro photog), I downloaded a utility ($99) to try to recover the 
contents of the card; a couple of free alternatives couldn’t find anything. It 
recovered intact, usable, like-new DNGs for about half of the shots; and for 
the other half there is only a low-rez JPG. In Lightroom, these show up as 
blank white, until the software gets around to filling the frame with the JPG.

There are about a dozen shots that I’d really like to have in some form. If 
there’s no easier way, I’ll put my camera on a tripod in front of the monitor, 
and photograph the photos.

Rick


> On Oct 21, 2021, at 4:47 PM, John Francis <[email protected]> wrote:
> 
> I don't know if there's anything turn-key that can do it (especially if 
> there's a problem with the DNG file).
> What, precisely, do you mean by "the DNG file is lost, but the preview jpg is 
> still intact"?
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