topic Re: My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF in EOS DSLR & Mirrorless Cameras

My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF

Ferdian — Wed, 15 Jan 2025 21:27:19 GMT

I use canon 7D and third party Yongnuo 50mm fix lens. my camera won't pick any focus when i using auto focus in quick mode, both in view finder or live view. But when i using it in live mode AF it can pick a focus. but i can't use view finder when using this mode.

this keep happening when i using fix lens (YN 50mm mark I/II, didn't test on canon fix lens yet and hope this didn't happen)
when i using my 55-250mm it just working fine.

can someone help me

Re: My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF

deebatman316 — Wed, 15 Jan 2025 21:28:17 GMT

Your lens is more than likely incompatible with your camera. Look into the Canon EF 50mm F/1.8 STM lens.

Re: My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF

Ferdian — Wed, 15 Jan 2025 21:31:52 GMT

Thanks for the reply

I could use it before, this just happened recently. and it's stressing me out because I've tried restarting all the settings but it's still happening.

Re: My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF

deebatman316 — Wed, 15 Jan 2025 21:40:18 GMT

Are you sure it fully compatible. Most older 3rd Party lenses are NOT. The reverse happens too new 3rd Party lenses don’t work properly on older cameras. But the Canon brand lenses do. So retest with a Canon lens.

Re: My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF

Waddizzle — Wed, 15 Jan 2025 21:56:45 GMT

Sounds like the lens has failed.

Re: My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF

Ferdian — Thu, 16 Jan 2025 09:54:35 GMT

If that's the case, I can only accept it. Thanks for the explanation

Re: My EOS 7D cant focus when use Yongnuo fix lens in quick mode AF

Ferdian — Thu, 16 Jan 2025 09:55:50 GMT

most likely 😔