EOS R7: Camera freezes, have to take battery out to reset.

[JWA]

I have brand new Canon EOS R7 Mirrorless Camera. I run Tamron lenses with a Canon Mount Adapter EF-EOS R 

Video works fine but when I take a picture the shutter goes off and it's like it freezes, red light stay on in the back. Camera won't turn off, you have to pop battery out.

[deebatman316]

What happens if you use a different lens on the camera. Do you have any other Canon brand EF or EF-S lenses to test out to see if the problems still persists. Do you own any RF or RF-S lenses that you could try out too. What is the full name of the Tamron lens that you're trying to use. Also which EF-RF Mount adapter are you using Canon has released 3 of them. The basic one, control ring, or the one filters can be installed in. The link you provided for the mount adapter doesn't work.

[JWA]

Tamron SP 70-200mm f/2.8 Di VC USD - Canon EF Fit

[Link removed per Community guidelines]

[deebatman316]

Do you have Canon brand EF or EF-S lenses to test out. The Tamron lens is an older lens which maybe incompatible with newer EOS R series cameras. Only Canon can guarantee compatibility with their own EF and EF-S when adapted to EOS R series cameras. It's on the 3rd Party manufacturer to make their lenses work on Canon cameras. 

[JWA]

Thank you.