johannielscom
Snorting silver salts
...Just dont collapse a lens all the way in you will ruin the meter. ...
Most lenses can be collapsed on the M5, but only when used by very conciencious users that have no trouble always following protocol: The meter only swings in the way of the lens when the shutter is cocked. Collapsing a lens on an uncocked camera works just fine, you need to be absolutely certain you will always pull out the lens before cocking the shutter.
Only exception to this that I know of: the Summar LTM lenses can be collapsed on the M5 when it's cocked (and they can also be collapsed on the M8 sensor without any risk)