Setup for last two days:
Canon 5D Mark IV, tethered to MacBook Pro.
Shooting the Canon's own software on the Mac.
8Gb Sandisk Extreme card.
Yesterday, in about 8 hours shooting, I had Err 70 twice. As per Canon instructions, I turned off/on the camera and continued.
So far this morning, I've had it three times. Again off/on is fixing it.
What tends to cause this? Camera? Card? Cable? Something else?
Anything I should be looking at?
Does the frequency increase?
Thanks.
D.