50mm 1.4 focus ring does not work and when shuter button halfway red poins focal do not work.

is there something I can do to resolve or to take to a repair shop?

The 50mm f/1.4 is known for failures of system development. Repair or replace is the only solution.

Google 'cost to fix the Canon 50mm f/1.4 development system'

I'm assuming you checked the switch on the lens is correctly positioned in the AF position.

Tags: Canon Camera

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