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Brian Luce

Record limit in 4k 24p with NX1 Samsung

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I'm sure this is a user error, but  today I was doing an interview. my nx1 would only record 7:57 of video before going back to stand by mode. 7:57 is what's showing up in the VF as available time, even though the card has lots of storage left. Tried different cards, always shows 7:57. In UHD 30p mode it goes to 7:08 available recording time. 

What am I doing wrong? This cannot be right. 

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Did you try reseting to factory defaults ?

​Resetting to factory default will set the available space count back to 29:59; however default sets video to 1080 at 60p. If you go to full 4k 24p, the counter will again change to 7:57. might be my unit or another bug. 

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Did you format the card in the camera? Stab in the dark but my first thought it the format of the card. FAT32 has a 4GB file size limit. 80Mbps @ 7 min gives you something close to 4GB. 

 

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I found this from Imaging Resource's NX1 Review:

Maximum clip length is limited to 29 minutes 59 seconds while maximum file size depends on the SD card's capacity and file system. For 32GB and lower capacity SDHC and SD cards, the card is formatted as FAT32 with a file size limit of 4GB. Larger SDXC cards are formatted as exFAT, with movie files sizes limited by the 29:59 time limit.

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format your 32 gig card on your computer as exFAT 

It worked! Now I'm in the 29 minute record time club! Thanks!

btw, for anyone else, it's easy to format exFAT, just insert the sd card in computer, click my computer, right click the SD card and select format. check exFAT and click START in the dialog box. 

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Interesting that if I format an SD card in camera it reverts back the the 4 gig file limit. I had to reformat in my desktop to get exFAT to get the full 29 min recording limit. 

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Yes exFAT is needed for files larger than 4GB.

Weird that the NX1 doesn't format it that way in-camera or that it doesn't span to multiple files!

Still, 7 and a half mins of 4K per 4GB isn't bad.

On the KineMINI in Cinema DNG that is about 4 seconds ;)

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If a device formatted a SDHC card as anything other than FAT32 it would be violating the SDHC specification, as that card doesn't officially support it. The card would have to identify as SDXC for the camera to exFAT it. I reckon anyway.

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