Notice: Design and specification are subject to change without prior notice.
Focal length distance
Focal length coverage 24-105mm which is according to 35mm CCD format. For Four Thirds camera, focal length distance is indicated in 12-53mm.
For a different type of camera, please check your camera instruction manual.
(Four Thirds) FP High- Speed Sync
FP High-Speed Sync setting in A, M, TTL mode and wireless mode is controlled by the master unit. Please check your camera instruction manual.
(*1)：Only applicable to wireless Slave mode. Group A-C (any channel 1 - 4)
(*2)：SD - Slave Digital (synchronizes to the pre-flash system. The master flash is to be set at TTL (E-TTL for Canon, i-TTL for Nikon and ADI/P-TTL for Sony) mode.
SF - Slave Film. synchronizes to the traditional single flash system. The master flash is to be set at manual mode. Studio lighting system synchronizes to this mode. This mode is also available for open flash, and for a standard flash in the market.
(*3)：Except for Fujifilm version
i40 Firmware update
How to check the Firmware version of i40:
Turn on the flash.
Pressing the Pilot button and Power button at the same time for a second.
The indicator lamp A and C will twinkle until taking off batteries, the twinkling times means firmware version. For example:
Indicator lamp A twinkling 18 times, Indicator lamp C twinkling 9 times, i40 version is 18-9.
*The firmware update is not required if the version is the latest.
The latest firmware version
Please contact our official distributors for firmware update service.