by ʇolɐǝz ǝɥʇ qoq

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This would protect you from mischievous kids (or malicious brats, as the case may be).

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I don't know of any, but great idea. In fact, I'd love to be able to require a PIN to change a number of options, which would keep me from doing it by accident. – mattdm Aug 2 '11 at 12:27
If you haven't touched the card, there's some chance. See How can I recover deleted photos from an SD Card? – mattdm Aug 2 '11 at 12:51
Here's another option for protecting your photos in the future: Toshiba has just announced a write-once SD card. There was an attempt to sell something like this a while back, but it was a big flop. Maybe Toshiba will have better success as a targeted niche product, as long as they can make the price reasonable (which is a bit doubtful, really). – mattdm Aug 2 '11 at 12:55
There's a ton of programs you can use for free to recover the deleted pics. First thing you should do though is move the Lock switch on the card to Lock so that no more data can be written to the card. Edit: this is what I used last. I think it's command based rather than GUI, but should be fairly simple to use the photorec bit – Dreamager Aug 2 '11 at 13:27
Also, if the child is yours (and old enough to understand), you should 'bill' them for your loss of work ;) whether it be threatening them with "it's going to take this many years of no pocket money to pay it off" or "this many years of <insert chore they don't like> should be enough", it might discourage them from trying again ;) – Dreamager Aug 2 '11 at 13:44
up vote 6 down vote accepted

No, there are not.

I have heard of rather expensive write-once memory cards, if you are truly serious about preventing deletion.

Also expensive but at least reusable is an Eye-Fi card which sends photos to a WiFi access-point as they are shot. That way, even if they are deleted from the card, the photos will be on a computer somewhere.

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I like the sound of the Eye-Fi card. I must look into that. – TRiG Aug 2 '11 at 13:11
Good though Itai. TRiG, be sure to look at the Eye-Fi card that allows for sync over an ad-hoc network in addition to a Wifi network. If you're in the field shooting, chances are you won't have a Wifi connection, but if you get the right Eye-Fi card, you can create a link between your computer and the camera without a problem that does the same exact thing. – Jon Aug 2 '11 at 17:43

Most SD cards have a little lock switch on the side of them. I don't know about every camera, but my Nikon D5000 refuses to take a photo or delete anything if that switch is set to Lock. As long as you remember to flick the switch on the card before you let the camera out of your sight, you have at least a little insurance. Depends on how clever and/or devious said brat is.

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If you'd handle the SD card anyway, then simply removing would be more effective :) – Leonidas Aug 2 '11 at 17:23
True. But then you might lose it :) – ElendilTheTall Aug 2 '11 at 17:29

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