lighting your creativity interfit S1 Battery-Powered TTL/HSS Flash Instruction Manual www.interfitphotographic.
Interfit S1 Battery-Powered TTL/HSS Flash Unit What’s cool about the Interfit S1? The S1 is the first high-tech TTL HSS monolight to include intelligent TTL and HSS technology in a battery-powered monolight with an included International Multi-Voltage AC Power adapter in one complete package. Through-The-Lens Metering (TTL) Mode uses the S1’s entire 9-stop power range (500W – 1.9Ws) and is automatically calculated in 1/10th stop increments, allowing for ± 3 stops of exposure compensation.
Table of Contents Interfit S1 Overview............................................................................ 3 Accessorizing the Interfit S1............................................................. 4 Protective Cap............................................................................ 4 Bowens® Mount Modifiers....................................................... 4 Softboxes.................................................................................... 4 Umbrellas.......................
Interfit S1 Overview 11 1 2 10 3 4 9 12 13 14 16 15 8 7 5 17 6 18 25 19 20 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Optical Slave Cell LCD Battery Indicator Flash Test Button Cell Button Beep Button Power Dial 3-Way Power Switch Group Selection Button Channel Selection Button Modeling Lamp Button LCD Display Bowens® S-Type Mount Modifier Quick-Release Lithium-Ion Battery Physical Battery Indicator Battery Quick-Release Tab 24 23 22 21 17. Sync Port 18. AC Power Port 19.
Accessorizing the Interfit S1 Protective Cap Every S1 flash head includes a protective end cap. The end cap offers protection to the glass dome, flash tube, and LED modeling lamp during transportation and storage. To remove the protective cap, pull back on the modifier quick-release on the top of the flash unit to release the mount lock. While holding back the release button, twist the cap counter-clockwise.
Accessorizing the Interfit S1 Umbrellas Umbrellas are the most widely used modifiers in photography. Their ease-of-use and versatility makes them quick to master; a go-to modifier in many situations. Umbrellas can be mounted to the S1 using the umbrella shaft mount on the bottom of the flash unit. The shaft mount can accommodate the wide variety of Interfit brand umbrellas and parabolic umbrellas as well as most umbrellas up to a 3/8” (8mm) diameter pole.
Using the Interfit S1 Powering On/Off There are two ways to power on your S1. To use the battery power, simply insert the battery to the battery compartment of the flash head and turn the power switch to “DC”. To use an AC power supply, insert the included AC converter into the underside of the unit and place the plug into a 110V/ 60Hz (220V/50Hz) grounded power outlet. Turn the power switch on the light to “AC”. NOTE: The AC power mode can be used with or without the battery in place.
Using the Interfit S1 GROUP Setting Groups **Setting the control group is only necessary when using the Interfit remotes. If you are using a third-party radio system or optical slave, you can skip this section. When using an Interfit TTL remote, only groups A-C are available. Setting the control group allows you to independently control the power of each light in your studio without affecting your other lights. Your S1 can be set to eight different control groups (A-H).
Using TTL (Through-The-Lens Metering) TTL (Through-The-Lens Metering) is an automatic flash exposure that is predetermined by your camera’s settings and internal light meter. TTL is most useful in rapidly changing lighting environments. When the TTL shooting mode is selected with the Interfit TTL remote, power adjustment on the remote will change to a +/- display. The light output will be automatically set by the camera but can be fine-tuned using exposure compensation.
Interfit S1 Specifications Max Watt Seconds 500Ws Power Range 9-Stops (500Ws – 1.9Ws) Guide Number 148 (100 ISO, 1/125, 1 meter, 7” reflector) Variability 1/10th stop increments Recycle Time 3 seconds at full power Flash Duration 1/900 at full power Color Temperature 5700K +/- 100K Modeling Lamp 10w LED (Proportional) Wireless Control Yes Shooting Mode Manual, TTL, HSS Max Sync Speed 1/250 sec. Manual, 1/8000 sec.
