Rolleiflex Original m42 adapter The Canon Speedlite Transmitter ST-E3-RT

The Canon Speedlite Transmitter ST-E3-RT is a radio trnamitter and control system for the Canon RT radio remote flash system

The Sony A7III is a modern mirrorless camera with a full-frame 24mp sensor

unless you're an ichthyologist

and the precision of the gearing is just excellent

with some finish wear and pitting

Rolleiflex Original m42 adapter The Canon Speedlite Transmitter ST-E3-RTThis is an original Rolleiflex, first sold in 1929. It's in adequate cosmetic condition, with paint and finish wear from normal use and handling over the last [counts on fingers] 90 or so years. Viewfinder image is dim the mirror has some corrosion but the groundglass is intact, and the nifty built in bubble level is still working. Shutter speeds are decent from 1 15s and up. The lens is the better 75mm f3. 8 Tessar, with some cleaning marks and haze.