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Instructions for inserting AA batteries into the flash unit.
Details on auto power off function to save battery energy during idle use.
Information on the flash automatically turning off to prevent overheating.
Steps for attaching the i40 to a camera hotshoe.
Steps for detaching the i40 from a camera hotshoe.
Procedure to power on the flash unit and indicators.
Overview of the menu dial for selecting flash modes.
Using the i40 as a video light with adjustable output levels.
Adjusting flash zoom coverage and understanding focal length settings.
Operating the i40 in full automatic flash mode with camera control.
How to adjust flash power compensation in TTL mode for optimal exposure.
Selecting manual flash power levels for direct exposure control.
Using the i40 as a wireless slave flash in digital, film, or TTL modes.
Using FP High-Speed Sync, fill-in flash, and soft box for lighting control.
Techniques for bounce lighting, and the function of the AF assist beam emitter.
Using slow sync, red-eye reduction, and 2nd curtain sync on Olympus cameras.
Utilizing slow sync and 2nd curtain sync on Panasonic cameras.
Guide numbers for manual exposure at various focal lengths and power levels.
Solutions for common problems like charging, firing, and exposure errors.
Instructions for inserting AA batteries into the flash unit.
Details on auto power off function to save battery energy during idle use.
Information on the flash automatically turning off to prevent overheating.
Steps for attaching the i40 to a camera hotshoe.
Steps for detaching the i40 from a camera hotshoe.
Procedure to power on the flash unit and indicators.
Overview of the menu dial for selecting flash modes.
Using the i40 as a video light with adjustable output levels.
Adjusting flash zoom coverage and understanding focal length settings.
Operating the i40 in full automatic flash mode with camera control.
How to adjust flash power compensation in TTL mode for optimal exposure.
Selecting manual flash power levels for direct exposure control.
Using the i40 as a wireless slave flash in digital, film, or TTL modes.
Using FP High-Speed Sync, fill-in flash, and soft box for lighting control.
Techniques for bounce lighting, and the function of the AF assist beam emitter.
Using slow sync, red-eye reduction, and 2nd curtain sync on Olympus cameras.
Utilizing slow sync and 2nd curtain sync on Panasonic cameras.
Guide numbers for manual exposure at various focal lengths and power levels.
Solutions for common problems like charging, firing, and exposure errors.
General| Power Source | 4x AA batteries |
|---|---|
| TTL Support | Yes |
| Dimensions | 85 x 61 x 85 mm |
| LED Video Light | Yes |
| Guide Number | 40 (ISO 100, 35mm) |
| Compatible Cameras | Nikon, Canon, Sony, Fujifilm |
| Zoom Range | 24-105mm |
| Bounce | Yes (Up to 90 degrees) |
| Swivel | Yes (180 degrees left and right) |
| Weight | 203g (without batteries) |
| Flash Modes | TTL, Manual |
| Recycle Time | 0.1 - 4 sec |
| Flash Duration | 1/800 to 1/20, 000 sec |
| Wireless TTL | Yes |
| Color Temperature | 5600K |
| Exposure Compensation | -2 to +2 EV |
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