Brightness-based flash duration analysis for a Rollei HS Freeze Portable flash unit over 9 f-stops (power settings: 1/256 up to 1/1) in Normal Mode.
Generated by the FDM-1T flash duration meter.
Brightness-based flash duration analysis for a Rollei HS Freeze Portable flash unit over 9 f-stops (power settings: 1/256 up to 1/1) in Normal Mode.
Generated by the FDM-1T flash duration meter.