52 Cameras: # 151 — Petri 7
Channel: 52 Cameras
Date: 2018-05-01

One clarification -- electronic flash (X) syncs at all shutter speeds.  F-class bulbs set to 'X' sync at 1/60 sec.  or slower.  M-class bulbs sync at all speeds when flash is set to 'M' and 1/30 or slower at 'X'.