02-12-2018 09:46 AM
"I see this is a common thing with Canons."
Believe it happens to any device that has a shutter. It is not a Canon specific issue.
"I've never had an issue with Canons before this."
Any device made by the hand of man, can and will fail, eventually.
02-12-2018 11:35 AM
Yes - that's a jammed shutter blade. That... and the mirror... are one of the only moving parts in the camera. Canon estimates the shutter life to be about 100,000 actuations (clearly many people get much more).
You can get an idea for how this works in this slow-motion video (although this is a 7D... the shutter mechanism works the same way for your 70D).
02-12-2018 11:44 AM
Canon shop replaced my 70D shutter 3 years ago and the camera is still going strong. I use it almost every day.
Repair solved the issue.
02-15-2018 05:10 PM
It will cost $400 to repair. Not sure worth it. Now debating on buying a new body instead of repairing.
02-15-2018 05:48 PM
Check the Canon refurbs on the Canon eStore