WARNING - This is a Horror Story (and it may happen to you)!
I've just discovered a bent pin in the CF slot of my EOS 7D!
I got this camera on the 7th Nov 09 and have used it daily ever since. Last weekend I got some shots of a great sunset and on Monday decided to transfer the RAW pics onto the Mac ready to upload to Flickr. So I popped out the 4GB (SanDisk Extreme III) and slid in it's identical twin brother - I have rotated this pair of cards since day one. Anyhow I went to my studio (shed) down the garden, sparked up the Mac, stuck the card in the reader and - nothing, nada, zip, zilch, zero. Doh! I must have switched the cards earlier and then forgotten (after thought: it should still have mounted even if blank!). So I try the other card, same result. O.K. that will teach me! Spend heaps of cash on cameras and lenses, then get a cheapo 17 in 1 card reader, wadaya expect? Simple solution - read the cards SOOC. Oh dear! First card creates error - cannot be read, please format etc. Right then, go for the reformat - it gets part way through and it stalls and says this card cannot be used. Great - try the second card. Oops, this does a similar thing, only it seems to complete the formatting then pops up a message stating "cannot create folder". What the ****? This is just insane!
Time to look inside the beast. Grab a Maglite and shine it into the CF slot and what do I see? Ho Lee Sheet! One single corner pin squished and bent. How the heck is it possible to bend a single pin? I don't think I am "ham fisted" and I treat this camera like a puppy. I thought Canon had consulted hundreds of pro-photographers prior to ceating this model. So I'd like to know which design genius came up with idea of using CF cards - I've never had any problems using SD cards with my 450D. For the time being the 450D is out of hibernation, the 7D will be in for major surgery, I will have to trash a couple of 4GB cards who's pin slots are probably mangled from using a nasty cheap card reader. The card reader will be used for target practise while I re-align the "red dot" sight on my pistol.
It appears that the lesson here is - get the biggest capacity, fastest card available and leave it in the camera and download the RAW files directly from the 7D - that should avoid damage to the pins!
Digital Design Consultant and Mac Pre-Press Artwork Services