Interfit S1 - Firmware and Specifications; Firmware Update Procedure; Technical Specifications

Specications of the S1
Max Watt Seconds 500Ws
Wireless Control Yes - when used with any Intert TTL or Manual Remote
Power Range 9 Stops (500Ws - 1.9Ws)
Shooting Mode Manual, TTL
Variability 1/10th stop increments
Dimensions 13.4 x 9.1 x 5.1” (34 x 23 x 13cm)
Max Sync Speed 1/250 (1/8000 in HSS mode)
Recycle Time 3 seconds at full power
Weight 6.3lbs (2.85kg)
Fan Cooled Yes
Flash Duration 1/900 @ full power
Auto Dump Yes
Guide Number 148 (100 ISO, 1/125, 1 meter, 7” reector)
Color Temperature 5500K +/- 50K
Temperature Regulation Yes
Modeling Lamp 10w LED (Off, 50%, 100%)
Umbrella Mount Fits umbrella shafts up to 5/8”(8mm)
www.intertphotographic.com 8
Firmware Updates
In order to ensure proper communication between the S1, your TTL Remote and your camera, make sure the
rmware on both your light and remote are updated to the most recent version. The newest rmware updates are
available in the support section of the Intert website.
In order to check the rmware version on your light, power the light off, press and hold the “test” button, and
power the light back on. A number (2.3, 2.4, etc.) will appear on the LCD readout that corresponds to the
rmware version. In order to check the rmware version on your remote, power the remote on and press and
hold the “mode” button. A letter and number (b 01, b 02) will appear on the LCD readout that corresponds to the
rmware version.