OM-EOS 9th Gen AF Confirm Lens Adapter Ring, for Olympus OM Lens to Canon EOS EF EF-S Mount Camera 7D 60D 70D 77D 80D 700D 750D 760D 800D 1000D 12...

Delivered on time,The adapter feets on my OM lens perfectly. At first it was tough to put it on the lens. I had to unscrew a small screw on the side, which is for pushing the apparture lever on the mount, to allow changings aeparture when lens is mounted. Overall, Good material and the focus confirm works at certain situations. However, focus confirm didn't always work and always prompts error when shooting on live few. 1. The adapter was purchased to be used on 500mm om lens onto canon 80d. To help readers with using this adapter here are some pointers. First and formost, so far I use this adapter with My OM lens only on regular shooting mode rather than live view mode (because it prompts error). Don't know why, but maybe placing a clear tape over the focus confirm chip will solve that. Of course, you need to remove the tape when you want to shoot regular mode to get focus confirm benefit. So, I only use live view if I want to focus on hard to focus targets when using view finder and focus confirm. Then turn off live view to shoot manually. 2. To get best results with My Canon 80D, my perefered technique with focus confirm is to use 9 auto focus point mode rather than the single centred auto focus point mode . That way it will have more location on the composition to focus on. Also point at areas with higher contrast helps. Zooming in and back out might help as well. Good luck.