Operating Instructions
i4 TTL
Thank you for choosing a Rimelite product.
Please refer to the camera’s instruction manual together with this operating instruction.
Rimelite’s i Flash TTL is compatible with Canon/Nikon DSLR and mirrorless cameras that are equipped with a hot shoe. The i. Flash TTL is an all-powerful strobe lighting
system with compact design DC battery pack and AC power supply pack. It supports E-TTL II, Nikon i-TTL with great performance.
Rimelite’s accumulated TTL technology supports the idealized exposure value in anywhere, under any environment.
Built-in innovated Rimelite’s TS-4 Wireless system.
The most Optimized User Interface , visible color LCD display and compact design, it supports ‘ very easy operation’ and ‘most logical TTL performance’.
TTL and HSS mode should only be used with TS-4 Wireless controller and trigger.
To synchronize TS-4 wireless trigger and i.flash , press on the i. Flash TTL, press ‘Mode’ button once on TS-4 wireless controller & trigger
1.Flash tube 2. Bracket
7. LCD display
11. Control button
3. Battery 4. Battery release button 5. Shoulder Strap 6. Sync sensor
8. Flash status indicator
9. Control button
12. Battery status LCD display
10. Power On/Off button
13. Battery status indicator buttonbutton
Power On/Off
Press and hold power switch to turn on/off the unit.
Power On
Auto Power Off function
- To reduce battery power use, i Flash TTL is designed to go into Sleep mode after 30 minutes of non-activity and to turn off automatically after 40 minutes of non-activity.
Control flash with TS-4 wireless controller & trigger
Attach TS-4 to Hot-shoe, turn on your camera and TS-4.
*Settings should be controlled through TS-4.
Camera Settings
Press and hold the
simultaneously for 3 seconds to select Canon/Nikon camera.
Make sure the camera to be synced with is selected before use.
The unit does not operate when selection is paired with a different camera.
<TTL> Mode
Set camera scene modes to <Av> (aperture priority), <Tv> (shutter priority or <M> (manual) mode to work with i Flash TTL.
Set the selection mode <TTL>,<M> to M on TS-4,
and adjust the accurate power on TS-4.
Hot Shoe
Channel Setting
Channel settings
i4 TTL flash is equipped with a built-in TS-4 Wireless system. Press
Then, press the
until the numeral digit starts blinking.
buttons to set the channels from 1~80.
*Set TS-4 wireless trigger channel to the same designated channel on the i4 TTL flash for operation. After pressing CH on the
the buttons to change channel
Change channel
Group Setting
Group settings
Designate up to 4 i Flash TTL to one GROUP and 4 of these flashes can control at the same time.
to assign up to 4 flashes:
to a group.
*TS-4 wireless trigger group should be set to the same designated group in i4 TTL flash in order to operate the flash. Press
the A, B, C and D buttons on wireless trigger for settings.
TTL Settings
e.g) When controlling 2flashes
e.g) When controlling 3flashes
Flash no.1 Ch 01, GR A
Flash no.1 Ch 01, GR A
Flash no. 2 Ch 01, GRB
Flash no. 2 Ch 01, GRB
Flash no.3 Ch 01, GRC
e.g) When controlling 4 flashes
e.g) When controlling 4 flashes in 1, 2 groups
Flash no.1 Ch 01, GR A
Flash no.1 Ch 01, GR A
Flash no. 2 Ch 01, GR B
Flash no. 2 Ch 01, GR B
Flash no.3 Ch 01, GR C
Flash no.3 Ch 02, GR A
Flash no. 4 Ch 01, GR D
Flash no. 4 Ch 02, GR B
TTL Settings
TTL / M settings
<TTL> mode
<M> mode
button on the TS-4 transmitter to switch between <TTL> mode and <M> mode..
In TTL mode, when the shutter on the camera of which the TS-4 is mounted to is pressed exposure is automatically controlled.
TS-4 wireless trigger must be used in order to operate the TTL mode.
*All operations must be done on the transmitter of the TS-4 controller.
Settings will not be applied when operating on the unit itself.
8 F-STOP in TTL mode, 7 F-STOP in manual mode.
i-Flash TTL from 1/1 full power to the lowest output of 1/128 with an increment of 0.1 F-Stops and a total of 70 levels
in manual mode.
…when decreasing output power:
…when increasing output power:
Flash exposure compensation
When shooting under <TTL> auto flash mode under various environments, it may demand a minor adjusting
exposure value. After checking your photograph for under and overexposure, press the + - buttons on the TS4 to adjust exposure compensation with an increment of 0.1 F-Stops.
*All operations must be done on the transmitter of the TS-4 controller. Settings will not be applied
when operating on the unit itself.
In the case of an underexposed photograph, press TS-4’s
to increase exposure compensation up to a maximum of +3.0, 30 steps.
In the case of an overexposed photograph, press TS-4’s
to decrease energy level down to a maximum of -3.0, 30 steps.
Manual Mode
Flash output is adjustable from 1/128 to 1/1 full power with an increment of 0.1 F-Stops.
*All operations must be done on the transmitter of the TS-4 controller. Settings will not be applied when
operating on the unit itself.
After doing exposure compensation in <TTL> mode, switch to the <M> manual flash mode to keep
photographing under the determined flash
After setting up the M mode by pressing the
button on TS-4,
manipulate the
buttons to adjust flash output from 1/1 full power to the lowest output of 1/128
with an increment of 0.1 F-Stops and a total of 70 steps.
HSS Flash Mode
The HSS flash mode syncs flashes at camera shutter speed of 1/200 ~ 1/8,000 seconds.
on TS-4 transmitter to turn on the TTL HSS mode (when using Canon)
is displayed on both the LCD displays of TS-4 and i Flash TTL.
*For Nikon cameras, i Flash TTL enters HSS flash mode automatically according to the
shutter speed adjustment of camera.
Shutter speed settings
Sync mode settings
Bulb. 30~1/180 secs
ordinary sync mode
1/200~1/8,000 secs
HSS mode
Optical Slave S1/S2
Optical slave flashes when other flashes fire.
Press the
button to change slave flashing method.
When a regular flash fires, slaves detect flash and fires
When a TTL flash fires, slaves detect flash and fires simultaneously
*Applicable only in M mode.
Sound Settings
Press SOUND button to turn the sound ON/OFF.
Sound Off
Sound On
LED Modeling Settings
On the TS-4 transmitter, press the
button to switch between 3 LED modelling light modes.
Flash Softlight Mode
Flash Softlight Mode : The modeling lamp output changes in accordance to the output of the flash.
Modelling Maximum Output Mode : The LED modelling is set at maximum output capacity.
LED Assist Light Mode :
Modelling Maximum Output Mode
LED Assist Light Mode
When the ambient light level is low, press the camera shutter button halfway to emit the assist beam in order to
Multi Stroboscopic Flash
On the TS-4 transmitter, press and hold
button for 2 seconds or longer for multi-flash settings.
Under the multi flash mode, multiple flashes are fired continuously at a high speed.
Where the object is moving, an application of such technique captures several phases of movement on one same photo.
The flash output is manipulated by the number of flashes and flash frequency.
To set the number of flashes, press
on the TS-4 transmitter until the display starts blinking.
Next, set your preferred number of flashes using the navigational
To set the flash frequency, press
Number of flashes
on the TS-4 transmitter until the display starts blinking.
Next, set your preferred frequency using the navigational
Flash frequency
(Sample Image)
*Calculating Shutter Speed
When utilizing multi-flash, camera shutter should be opened until
flash stops.
Please refer to the table below to calculate shutter speed
In order to prevent flash from overheating
and malfunctioning, refrain from firing
Number of flashes ÷ Flash frequency
flash no more than 10 times in multi-flash
For instance, if the number of flashes is 40 and the flash frequency is
8Hz, minimum shutter speed should be set at 0.5 seconds.
After firing in succession, flash should be
left unused for at least 5 minutes.
Multi-flash may be used simultaneously
with “Bulb”.
Check Battery Percentage
Press the battery status indicator button to determine battery charging status on the LCD display.
Battery status LCD display
Battery status indicator button
Check battery status
AC Pack
When using AC pack, connect cables to the AC pack.
Charging adapter
Use only the charger that comes
together with the packing. Plug
charger into the charging port
located at the side of the battery.
The LED light is red when charging.
The LED light is green when battery is
fully charged
Battery pack
For battery power, slide on the battery pack.
Reset Settings
To reset i4 TTL, press
button for 2 seconds or longer.
All settings for group, channel, exposure compensation, sync and flash output are reset.
(Before resetting)
(After resetting)
This equipment comes built in with a Li-ion battery. Below are instructions on proper battery handling.
Characteristics and usage of battery
This equipment comes with a 11.1V 4.4A battery.
Charge battery with charger that comes with the package before use.
One full charge takes approximately 3.5hours, providing up to 400 flashes at maximum output. Li-ion battery performs better after more than 10 times of full charge
and discharge. According to frequency of usage, battery capacity may increase in the beginning and gradually decrease before its life cycle comes to an end.
A fully charged battery may be stored up to 6 months. Keeping a discharged battery for a long period may affect its performance. To maintain performance, charge
battery within 3 months after use.
The battery life cycle is approximately 300 cycles. A drastic drop in flash brightness suggests a change of battery is needed. Contact Rimelite for replacement battery.
A change in temperature outdoors may affect the battery. Life cycle of battery may vary under normal temperatures of 10°C to 45°C; please be aware of usage under
low and high temperatures outside of normal temperature range. A drastic drop of the battery capacity may occur below 10°C and the battery may fail to operate
under 0°C.
Such symptoms should disappear under normal temperature but care should be taken to avoid use under extreme temperatures. Refrain from using battery in a
temperature below 0°C. Insistence of use under such circumstance may cause battery to malfunction and decrease its life cycle.
Battery should also be refrained from use under temperatures above 45°C. If battery is overheated, its built-in protection system may limit use and life cycle may be
shorten. Cool battery if the warning indicator beeps due to overheating.
Even where a battery is discharged from use and shooting is no longer possible, the battery retains a certain amount of capacity to protect its system. This small
amount of capacity is maintained over 3-6months but is exhausted over time resulting in degradation of the battery. To avoid degradation, charge battery as soon as
battery exhaustion is indicated.
Charger and Battery shelf life
Flash should be turned off first before charging the battery. Leaving the flash on while charging lengthens charging time as more power is consumed. Charging time is
approximately 3.5 hours with the charger provided together in the package.
A battery’s shelf life increases with frequent charging Even if a battery is not fully exhausted, frequent charging increases shelf life and there is no Ni-ca battery
memory phenomena.
Battery should be charged under around a temperature range of 10°C~40°. Charging outside the range of this temperature may cause its protection system to disable
charging or to display battery as fully charged. Charge battery at room temperature whenever possible.
Charger when used for its specified purpose charges quickly and does not malfunction.
Leaving the flash on while charging lengthens charging time as more power is consumed. For fast charging switch off flash while charging or remove battery and
charge directly.
Charging time varies according to battery temperature, current flow of the connected AC220V charger and battery age. The green light on the charger indicates power
input and that the battery is fully charged while the red light indicates that the battery is charging.
When a charger is connected to a power outlet with the battery detached, the green light appears. The light turns red when battery is connected to i4 TTL
If the red light does not appear while charging, ensure that the charger is connected to the power outlet and there is power supply. Where there is a malfunction with
the charger and the battery, contact Rimelite for after-sales service.
Where a battery percentage falls drastically after a full charge, battery may have degraded or there is a malfunction with the charger. Replace battery and check if
charger is working.
Using a flash continuously (succession of 250 flashes) the battery might be overheated.
Firing 150 flashes successively at full power and an ambient temperature of 25°C may cause the overheating alarm to beep. After 5 seconds of beeping, firing of
additional 50 flashes is possible. (Depending on the battery status (below 70% of use, temperature) firing up to 250 flashes may be possible without overheating)
An overheated battery may cause damage. In order to avoid overheating, leave flash unused for 10 minutes or more after a succession of 250 flashes at full power.
After-sales service policy
All Rimelite products are entitled to the following warranty and free after-sales service.
All Rimelite products are equipped with flash tubes, capacitors and parts (excluding consumables) that have semi-permanent life cycle without the need for replacement.
Apart from certain consumables, all parts are guaranteed a warranty period of 5 years.
Paid repair and replacement is possible for the following that renders product exchange and warranty period void:
Where product has been damaged through consumer’s misuse and negligence
Where product has not been stored in accordance with instructions and product has been disassembled voluntarily
Where the limited warranty period has expired
Where unauthorized repair and modification by non-designated service centers has been carried out on the product.
Where product has been damaged through accidents or natural calamities (fire, flood, earthquake, lightning, pollution)
Consumable supplies of modeling lamp and flash tube are not covered by warranty.
All delivery expenses are borne by the consumer
terms and conditions
Product exchange
Product exchange is possible within 10 days of purchase if the product is faulty, defective, in need of substantial repair or damaged not arising out of consumer
misuse and handling.
Substantial repair is a repair where simple part replacements does not render normal operability of the product.
For any enquiries and information on product technology and new products, please refer to Rimelite’s homepage.