Interfit S1 User manual

lighting your creativity
intert S1
Battery-Powered TTL/HSS Flash
Instruction Manual
www.intertphotographic.com

Intert S1 Battery-Powered TTL/HSS Flash Unit
What’s cool about the Intert S1?
The S1 is the rst 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. Manual Mode utilizes the entire 9-stop power range in 1/10th
stop increments, and High-Speed Sync (HSS) in Manual Mode at up to 1/8000th of a second
shutter speed uses the top 3 stops of the power range (10.0 – 8.0) while also being manually
adjustable in 1/10-stop increments.
How do I keep my Intert S1 and myself safe?
1. Always keep this product away from rain or dampness to avoid re or electric shock.
2. This product contains high-voltage electronic parts. Touching the high-voltage circuit inside it
may result in electric shock and/or product failure. Do not disassemble. Tampering with your
ash unit will void the warranty. Should repairs become necessary, this product must be sent to
a certied Intert repair facility - contact support for more details.
3. Stop using this product immediately if it breaks open due to explosion, falling, or impact.
Continued use may result in electric shock and/or further product damage.
4. Do not re the ash directly into the eyes (especially those of babies) within short distances.
Otherwise visual impairment may occur.
5. Do not use this ash unit in the presence of ammable gases, chemicals and/or other
ammable materials. In certain circumstances, these materials may be sensitive to the strong
light emitting from this ash unit and re or electromagnetic interference may result.
6. Do not leave unattended or store this ash unit if the ambient temperature is over 120°F/50°C
(e.g. in a vehicle). Prolonged exposure to excessive heat may damage electrical components.
How does Intert protect my Intert S1?
Your Intert S1 is protected by a one-year warranty against manufacturer defects.
Warranty does not cover consumables, such as the ash tube, battery, or glass dome.
You can reach Intert Photographic Ltd. for customer service at:
Intert Photographic USA
1 [phone]
support@intertphotographic.com
Intert Photographic UK
[phone]
sales@intertphotographic.com

Table of Contents
Intert S1 Overview............................................................................
Accessorizing the Intert S1.............................................................
Protective Cap............................................................................
Bowens® Mount Modiers.......................................................
Softboxes....................................................................................
Umbrellas....................................................................................
Sync Cable..................................................................................
Remote........................................................................................
Third-Party Remotes...................................................................
Using the Intert S1...........................................................................
Powering On/Off.......................................................................
Adjusting the Flash Power........................................................
Using the Modeling Lamp........................................................
Setting Channels........................................................................
Setting Groups...........................................................................
Beep Button................................................................................
Optical Slave Cell.......................................................................
Shooting Modes.........................................................................
Sync Modes.................................................................................
Using High-Speed Sync (HSS)..................................................
Using Through-The-Lens (TTL) Metering................................
Charging the Battery..................................................................
Mounting to a Light Stand........................................................
Replacing the Flash Tube and Frosted Glass Dome..............
Firmware Updates......................................................................
Intert S1 Specications.....................................................................
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1. Optical Slave Cell
2. LCD Battery Indicator
3. Flash Test Button
4. Cell Button
5. Beep Button
6. Power Dial
7. 3-Way Power Switch
8. Group Selection Button
9. Channel Selection Button
10. Modeling Lamp Button
11. LCD Display
12. Bowens® S-Type Mount
13. Modier Quick-Release
14. Lithium-Ion Battery
15. Physical Battery Indicator
16. Battery Quick-Release Tab
17. Sync Port
18. AC Power Port
19. Grip Handle
20. Ratcheting Tilt Lock
21. Light Stand Mount
22. Stand Mount Knob
23. Umbrella Mount
24. Bowens S-Type Mount
25. Glass Dome, Flash Tube and LED
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Intert S1 Overview
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Accessorizing the Intert S1
Protective Cap
Every S1 ash head includes a protective end cap. The end cap offers protection to the glass dome, ash
tube, and LED modeling lamp during transportation and storage.
To remove the protective cap, pull back on the modier quick-release on the top of the ash unit to release
the mount lock. While holding back the release button, twist the cap counter-clockwise.
To place the protective cap back on the ash unit, insert the three prongs of the end cap into the mount and
rotate clockwise until you hear a click.
Bowens® Mount Modiers
Modifying the light from your S1 is key to creating dynamic images. The S1 can be used with any light
modier with a Bowens® S-Type mount.
To attach a Bowens® mount modier to the S1, simply insert the three prongs of the modier ring into the
mount and rotate clockwise until you hear a click. To remove the modier, pull back on the modier quick-
release on the top of the ash unit to release the mount lock and rotate the modier counter-clockwise.
Softboxes
The variety of softbox shapes and sizes allow for endless lighting possibilities. The S1 utilizes an S-Mount
style system that ts softboxes with Bowens® mount speedrings.
To attach a softbox with a Bowens® mount speedring, simply insert the three prongs of the speedring into
the mount and rotate clockwise until you hear a click. To remove the softbox, pull back on the modier
quick-release on the top of the ash unit to release the mount lock and rotate the softbox counter-clockwise.
Intert offers a variety of light modiers as well as various branded speedrings to make your favorite
modiers compatible with our lighting systems.
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Accessorizing the Intert S1
Umbrellas
Umbrellas are the most widely used modiers in photography. Their ease-of-use and versatility makes them
quick to master; a go-to modier in many situations.
Umbrellas can be mounted to the S1 using the umbrella shaft mount on the bottom of the ash unit. The
shaft mount can accommodate the wide variety of Intert brand umbrellas and parabolic umbrellas as well
as most umbrellas up to a 3/8” (8mm) diameter pole. Make sure to securely tighten the thumb screw on the
umbrella mount.
Sync Cable
Sync cables allow the ash to be triggered by the camera via physical tethered connection. While sync
cables are the most economical way to trigger a ash, they will not allow you to make any adjustments to
the ash from the camera. They will also not allow you to use HSS or TTL.
A sync cable is included with your S1 and can be plugged into the sync port on the rear left side of the ash
unit and the corresponding sync port on your camera. To connect the cable to the light, insert the 3.5mm
(headphone jack) plug into the sync port on the light. Take the other end of the cable and connect it to the
PC terminal on your camera (*consult your camera user manual to locate the PC terminal on your camera.
Some camera models do not have a PC terminal and may require a separate adapter).
Remotes
The S1 is compatible with all Intert TTL Remotes as well as the Intert Manual Remote. Using these remotes
allows you to control all functions of the light wirelessly, though only the Intert
TTL remotes will be able to activate and control the TTL and HSS functions of
the S1. The Intert TTL remotes are brand-specic and must correspond to
the brand of camera being used. This remote mounts to your camera’s hot
shoe and communicates to the S1 unit without an additional receiver. Intert
Remotes are sold separately.
*Compatible remotes include:
-Intert TTL Remote for Canon
-Intert TTL Remote for Nikon
-Intert TTL Remote for Sony
-Intert Manual Remote (manual mode only)
Third Party Remotes
The S1 is compatible with all third-party remotes using a receiver via sync cable. While these remotes
ie. PocketWizard or Yongnuo, will allow you to trigger the S1, they will not allow you to make any power
adjustments from the camera or use TTL or HSS. All power adjustments must be done manually through the
back of the light when using third-party remotes.
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Using the Intert 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 ash 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. The battery will not charge in
the light and must be charged with the separate charger included with the light. This lengthens the battery’s
life, as it is not constantly discharged and recharged when used in AC mode.
WARNING: If the light displays a “P1” error code on the screen, the light is overheating and must be turned
off for at least 15 minutes to allow the internal components to cool down.
Adjusting the Flash Power
Your S1 is packed with 500Ws of power. This power is adjustable over a 9-stop range and can be adjusted
in 1/10th of a stop intervals. Use the power adjustment dial on the back of your S1 to adjust the power from
10.0 (full power) to 2.0 (lowest power) in manual mode. Power is displayed on the LCD screen. When in HSS
mode, the power will only adjust from 10.0 (full power in HSS) to 8.0 (lowest power in HSS).
Using the Test Function
The “TEST” button will illuminate blue when the ash is charged and ready for use. The blue indicator light
will turn off immediately after the ash has red, and turn on again once the light has full recycled. Recycle is
also indicated by an audible beep when the “BEEP” function is enabled.
Using the Modeling Lamp
To use the 10W LED modeling lamp, press the “MODEL” button on the back interface of the S1 to toggle
through two different modeling lamp intensities or turn it off.
• 50% - Toggle the modeling lamp to 50% for half of the modeling lamp power.
• 100% - Toggle the modeling lamp to 100% to use the modeling lamp on full power.
Setting Channels
**Setting the control channel is only necessary when using the Intert remotes. If you are using a third-
party radio system or optical slave, you can skip this section. When using the manual remote, 15 channels
will show, but only the rst 8 can be used with the S1.
Having 8 unique radio control channels allows you to use your lights in close proximity with another
photographer without interfering with one another. Press the “CHANNEL” button to toggle through the
8 available isolated control channels. Make sure the channel selected on your S1 matches the selected
channel on your Intert remote.
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MODEL
TEST
CH

Using the Intert S1
Setting Groups
**Setting the control group is only necessary when using the Intert remotes. If you are using a third-party
radio system or optical slave, you can skip this section. When using an Intert 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). Press the “GROUP”
button to assign your light to it’s own group.
Beep Button
Press the “BEEP” button to turn on or off the beeping sound for button presses*, ash power adjustments,
and ash refresh notications.
*When using an Intert remote, the beep will sound if you attempt to lower the power below 4.0, regardless
of whether the beep function has been turned off.
Optical Slave Cell
When using a multiple light setup with your Intert S1 and a sync cord or a third-party remote, turn on the
“CELL” button to activate the optical slave function. This will allow the light to be triggered by the light of
your other ashes. NOTE: This requires direct line of sight between lights.
Shooting Modes
When shooting with the Intert TTL remote, select from a manual shooting mode or the TTL (Through-The-
Lens) mode. Press the button beneath “MODE” on the TTL remote to toggle between shooting modes.
Sync Modes
When shooting with the Intert TTL remote, select from three different sync modes. Press the button
beneath sync to toggle the sync mode to rst curtain, second curtain or HSS.
NOTE: Nikon users switch between 1st and 2nd-curtain sync via the camera and enable HSS by increasing
the shutter speed on their camera with Auto FP mode enabled.
Using HSS (High Speed Sync)
Use the Intert TTL remote to toggle the shooting mode of your S1 to HSS. This shooting mode will allow
you to use shutter speeds of up to 1/8000th and trigger the ash. The power range read out will change to
8.0-10.0. These output levels do not directly correlate with the 8.0-10.0 ash in manual mode. There will be
a noticeable decrease in ash output as the S1 will put out a series of low power ashes allowing for correct
exposures at high shutter speeds.
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BEEP
CELL
GROUP

Using TTL (Through-The-Lens Metering)
TTL (Through-The-Lens Metering) is an automatic ash 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 Intert 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 ne-tuned using
exposure compensation. Exposure compensation can be set using the +/ - power buttons on the remote.
Adjustments can be made in 1/10th stop increments up to +3 or
- 3 stops.
Charging the Battery
To check the amount of charge left on the battery, either press and hold the button on the battery indicator
on top of the battery, or turn the light to DC power mode with the battery inserted to view the LCD battery
indicator on the Intert S1’s LCD screen.
To charge the battery, remove it from the light by pressing together the tabs on both sides of the battery
and lifting straight up. Plug the included battery charger into the battery, then plug the charger into a wall
outlet to charge. There will be no indicator on the battery while charging, but the light on the AC converter/
charger will light up red while charging and green when completed. A full charge will take about 3 hours.
NOTE: Only use the included battery charger with your Intert S1 battery. Using other brand chargers could
damage the battery and will void its warranty.
Mounting to a Light Stand
Your S1 will mount to most standard light stands with a 5/8” stud. Unscrew the Stand Mount Knob until the
mount ts onto the light stand. Make sure to turn the Stand Mount Knob until tight.
Use the Ratcheting Tilt-Lock to adjust the angle of the light on the stand. Once loosened, simply push
the light in the direction you want to tilt and it will click into place in increments. The resistance of the
Ratcheting Tilt-Lock provides extra security when using large, heavy modiers.
Replacing the Flash Tube and Frosted Glass Dome
Both the ash tube and frosted glass dome are user-replaceable*. Replacement parts can be purchased
through the Intert website or a certied Intert dealer.
*The oil from your ngers will damage ash tubes. Be sure to handle new ash tubes with gloves or clean cloth. Always
use caution when handling broken glass.
Firmware Updates
To ensure proper communication between the S1, the 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.
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 (1.5, 2.0, etc.) will appear on the LCD readout that corresponds to
the rmware version. To see which version of rmware your remote is using: 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.
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Intert S1 Specications
Max Watt Seconds 500Ws
Wireless Control Yes
Power Range 9-Stops (500Ws – 1.9Ws)
Shooting Mode Manual, TTL, HSS
Variability 1/10th stop increments
Dimensions 13.4” × 9.1” × 5.1”
Max Sync Speed 1/250 sec. Manual, 1/8000 sec. HSS
Recycle Time 3 seconds at full power
Weight 6.3 lbs
Fan Cooled Yes
Flash Duration 1/900 at full power
Auto Dump Yes
Guide Number 148 (100 ISO, 1/125, 1 meter, 7” reector)
Color Temperature 5700K +/- 100K
Temperature Regulation Yes
Modeling Lamp 10w LED (Proportional)
Umbrella Mount Fits umbrella shafts up to 5/8”(8mm)
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