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The GF-1 is the external flash that supports TTL flash control using pre-flash.
It utilizes an original TTL flash technique to provide precise flash exposure with auxiliary flash. Also capable of bounce flash to softly and naturally illuminate the subject with indirect light, the GF-1 enables the photographer to enjoy a wide range of creative shooting options only possible with an external flash. There are built-in wide-angle diffuser and catch-light panels. When the wide-angle diffuser panel is used, a coverage angle equivalent to 18 mm is possible.
Compatible camera models
GXR
GR DIGITAL III
It utilizes an original TTL flash technique to provide precise flash exposure with auxiliary flash. Also capable of bounce flash to softly and naturally illuminate the subject with indirect light, the GF-1 enables the photographer to enjoy a wide range of creative shooting options only possible with an external flash. There are built-in wide-angle diffuser and catch-light panels. When the wide-angle diffuser panel is used, a coverage angle equivalent to 18 mm is possible.
Compatible camera models
| Guild No | 20 (at 24 mm) ~ 30 (at 105 mm) with ISO 100, 16 (at 24 mm, using the built-in wide panel. |
| Illumination Coverage | 24 ~ 105 mm (18 mm with the wide panel) Only Type R cameras: Automatically linked to the focal length of the lens as per the auto power zoom |
| Power Source | 4 x AA batteries (not included in a package) * Lithium batteries and NiMH batteries can be used. |
| Battery Life | Approx. 200 flashes with alkaline batteries (based on Ricoh's own measurements) |
| Energy Saving | Enters stand-by mode after about 2 minutes of the camera entering stand-by mode or being turned off. Powers off automatically after 30 minutes in stand-by mode. In slave mode, powers off automatically after 60 minutes without operation. |
| Flash Interval | Approx. 4.7 seconds (with rechargeable Nickel-hydrogen batteries) Approx. 5 seconds (with alkaline batteries) |
| Flash Output Adjustment | Pre-flash TTL, Ambient light automatic, Manual flash |
| AF Auxiliary Light | Built-in |
| Color Temperature | 5,600K |
| Flash Duration | 1/250 second (full power flash) 1/250 ~ 1/20,000 second (TTL flash) |
| Slave Flash | SLAVE1, SLAVE2 switching |
| Dimension | 65 mm (W) x 95 mm (H) x 80 mm (D) (2.6 x 3.7 x 3.2 inch) |
| Weight | Approx. 240 g (excluding batteries) |
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