Super viewfinder. The air temperature finally allowed me to test it, first shots at the top right of the C50, first setting and I was in the visual, a little refining and I did not quit the visual. The chevron is highly useful, but the circle is ineffective on target unless reduced to the diameter of the visual. The only negative thing I have in stock is that, for the price, a turntable for piccatini rail could be provided...