Quoted By:
Thanks to a recommendation from the last thread I picked up the cheap Sigma 30mm 2.8 for my a6000. When I mount it to the camera it adds a circle to the centre of the EVF, which isn't there with the Sony 16mm or with any manual/adapted lenses. What is it for?
I assumed it showed something to do with autofocus or metering, but with the same autofocus & metering settings & the Sony 16mm mounted it doesn't appear.