December 16, 2016 at 11:47AM, Edited December 16, 11:48AM

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Scary lost footage with GH4 Issue

I just left a shoot, fortunately not a very important one, and upon arriving home to pull the footage off of my SD card, I find that, everything I had shot prior to this morning, was on it, but it was as if I had just shot nothing over the last hour. I am using a Panasonic GH4 with a Transcend 128GB SD card.

I fired off the camera after this, and everything saved to the card and is replay-able. So, basically, the card does not appear to be corrupted(or at least I'm not receiving any errors indicating this, but appears to have lost around twenty clips that should be on it.

So has anyone on these boards had a similar experience? I am a bit horrified because I have some significant shoots coming up next week that I cannot afford this to happen on. Is it my SD card, or is it my camera?

4 Comments

I had this happen years ago when shooting with a GH2 camera and a Transcend SDHC class 10 card. After lots of tests I confirmed it was a problem with the card, which immediately went into the garbage.

Today I mainly shoot with Lexar and Sandisk cards which have never let me down. I buy them in 2-packs which helps to bring the cost down quite a bit. ( right now you can buy two Lexar 128GB professional 1000x UHS-II SDXC class 10, UHS speed class 3 memory cards for $109 at B&H Photo )

One thing I recommend is to ALWAYS format your cards in camera before EVERY shoot, which is a last minute check to confirm that the card is working properly.

I also recommend using a high quality card reader like the Delkin Devices USB 3.0 SD UHS-II memory card reader, or any of the Lexar Pro SD card readers.

One last thing, always store your SD cards in a waterproof impact-resistant memory card case like the ones made by Pelican. Cards are easy to lose or damage, so this case is cheap insurance that your shoot is safe.

December 16, 2016 at 12:05PM, Edited December 16, 12:16PM

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Guy McLoughlin
Video Producer
30422

That is a relief that it is most likely the card. That card will be going into the garbage. I'll need to buy a replacement and will make it a Lexar or Sandisk based off your recommendation. I was using a Kingston card reader which I suppose is lower end. Time for an upgrade probably.

Thanks for that comprehensive answer! I should have formatted, you are correct. Fortunately this wake up call didn't cost me money, but I'll make sure I do that from this point on. I will look in to those cases, cards, and card reader that you recommended!

John Haas

December 16, 2016 at 12:15PM

Does your Transcend card support UHS-3? I've used Transcend's 64GB Class 10 UHS-3 cards (link below) on every shoot with my GH4 and I've never had a problem.

https://www.amazon.com/Transcend-Speed-UHS-3-Memory-TS64GSDU3/dp/B00J3KA...

December 19, 2016 at 5:44PM

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It does. I've got that card, and the 128gb version which is what failed me. I had no problems since I purchased my GH4 in January 2015, until this week.

December 20, 2016 at 7:04PM, Edited December 20, 7:05PM

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John Haas
Cinematographer
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