I have some older glass, Helios, Minolta, and Canon FD that I have used on my M5 in the past with adaptors. I took the Minolta out today and couldn't get the shutter to release. I've Googled but the suggested fixes don't work. Going into function to enable shutter release without lens. I can't see it as an option, but perhaps I am looking in the wrong place.
I have used this lens on this camera in the past ...
Any help/advice much appreciated!
After extensive Googling I found the answer!
You need to change one of the Custom Functions Settings to allow the camera to release the shutter with no lens attached.
Press the Menu button.
Go to the Custom Functions tab in the menu.
Select "C.Fn II: Others."
Go to the third item, "Release shutter w/o lens".
Change that setting to "1: Enable".