The 70D doesn't focus with the normal phase detection with a f8 lens, right? But what about the dual pixel liveview AF? Does it focus at f8 or f11? If i buy for example a EF 100-400 mm f4.5-5.6 (the old one) and stick a 2x extender i get a 200–800 mm...
Yeah i checked the microswitches but the problems still persists. What i have not tried yet is with a different battery. Not very easy to find someone with that battery model...
This happened all of a sudden. I took a lot a photos, arrived at home removed the photos from card then put it back. On the next day i changed lens, turned it on and nothing. I thought it was the battery, so i charged it and then put it on the camera...
Hi My 5D classic has exactly the same problem. But i tried doing a hard reset, removed both batteries, left it on all night and still the same. Replaced also the backup battery, the problem persists. Any more sugestions?