Blackmagic Pocket Cinema Camera 25fps endurance test

Setup

25fps, 180° shutter, ISO800
2x Sandisk Extreme Pro 64GB
USRobotics dual UHS-1 USB card reader
iMac
manual lens, drawing no power for autofocus or optical stabilisation.
focus peaking ON

Test 1 raw

  20min 3 seconds of raw footage.

Test 2 raw

BMPCC stops at 19min45sec with 48% battery having filled up the 64GB card.
However it starts blinking a "card full" message after about 15min of recording.
29649 frames
Resolve reports just: 19min 45sec
40minutes to transfer footage to iMac
 => you can't run on 2 cards, dumping one while the other is being recorded to.
59.538.769.788 Byte (59,59 GB on disk)
29.649 frames
3min 33sec to erase all files on the SD-card

With the remaining 48% battery
19 minutes 45 seconds (exactly like before down to the second) onto another SD card.
After 15min 11 seconds the "card full" message starts to blink.
2% battery left
transfer to PC: 42min
59.370.355.068 Byte (59,44 GB on disk)
29.594 frames
Resolve reports: 19min 43sec


With remaining 2% battery left, the camera nearly instantly shuts down in an attempts to record some more.

Test 3 ProRes

39min 43 seconds of ProRes before the battery and not the SD-card ran out.
There was enough space for another 4minutes 52 seconds