Flash duration analysis for a Dynalite Baja B4 studio flash unit (400 Ws) at 50 Ws, 12 Ws and 6 Ws (corresponding to t-mode 0.4, 0.2 and 0.1, resp.).
Generated by the FDM-1T flash duration meter.
Standard visualization has been configured to show the luminous exposure (in lux-seconds) induced by the measured flash as an additional value at the bottom of the screen.
➤ Courtesy of David F. Parker
This update eliminates a flaw in the memory management of the FDM-1T which, under certain circumstances, could force the device into halt and display a System Failure message. Therefore, we strongly recommend installing this firmware update which is available for download as of now.
Credits to David F. Parker who reported this issue and helped testing the new firmware version.
For correct installation please adhere to the unit’s instruction manual.
Flash duration analysis for a Godox TT685S flash unit at 1/32, 1/64 and 1/128 of full charge.
Generated by the FDM-1T flash duration meter.
Standard visualization has been configured to show the luminous exposure (in lux-seconds) induced by the measured flash as an additional value at the bottom of the screen.
➤ Courtesy of David F. Parker
Measurement results for an Elinchrom ELB 400 studio flash unit (424 Ws).
Quadra HS Head at full charge (t0.1 [sec]): 1/187
Quadra Action Head at 140 Ws (t0.1 [sec]): 1/1713
Generated by the FDM-1T flash duration meter.
Standard visualization has been configured to show the luminous exposure (in lux-seconds) induced by the measured flash as an additional value at the bottom of the screen.
➤ Courtesy of David F. Parker
Flash duration analysis for a Norman ML400 studio flash unit (400 Ws) at full charge followed by -1 and -2 f-stops.
Generated by the FDM-1T flash duration meter.
Standard visualization has been configured to show the luminous exposure (in lux-seconds) induced by the measured flash as an additional value at the bottom of the screen.
➤ Courtesy of David F. Parker