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Featured Article

Carlo Hindian About The FDM-1T

Every photographer at one point will be asked to freeze motion.

It is at that moment, when commonly held assumptions and manufacturer’s claims are revealed to be false or greatly exaggerated.

One common belief amongst photographers is that by decreasing power output flash duration decreases. Though somewhat true many units have a minimum flash… Read More »

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Flash Duration of Orlit Rovelight RT 601 HSS in Normal Mode

Flash Duration of Orlit Rovelight RT 601 HSS in Normal Mode

Flash duration analysis for an Orlit Rovelight RT 601 HSS studio flash unit and Normal Mode  settings of 9.0 for the longest flash, followed by 7.9-6.9-5.9-4.9-3.9-2.9-1.9 and finally 1.0 for the shortest pulse.

Generated by the FDM-1T flash duration meter.

For settings 3.9 and lower, measurement was triggered on the 2nd pulse. Measurement basis… Read More »

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Flash Duration of Orlit Rovelight RT 601 HSS in Freeze Mode

Flash Duration of Orlit Rovelight RT 601 HSS in Freeze Mode

Flash duration analysis for an Orlit Rovelight RT 601 HSS studio flash unit and Freeze Mode  settings of 9.0 for the longest flash, followed by 7.8-6.7-5.6-4.6-3.5-2.2 and finally 1.0 for the shortest pulse.

Generated by the FDM-1T flash duration meter.

Standard visualization has been configured to show the luminous exposure (in lux-seconds) induced by… Read More »

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Flash Duration of Dynalite Baja B4

Flash Duration of Dynalite Baja B4

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… Read More »

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Firmware Version 3.1.4 Available

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… Read More »

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Flash Duration of Godox TT685S

Flash Duration of Godox TT685S

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… Read More »