I'm struggling with video focus on the Canon 7D which will be make or break for me keeping or selling it off.
I shot this video of a calamari squid hunting yesterday:
As you can see, whenever the squid moves closer to the camera, the footage goes out of focus.
I switch regularly back and forward between video and stills, mainly filming marine animal behaviours which can be unpredictable.
Are there any not-overly complicated solutions to this or is my 7D about to have a 'For Sale' sticker put on it?
Thank you in advance for your advice.