Flash range (m) = | GN (ISO 200) × ISO sensitivity factor | |
Aperture | ||
GN (ISO200) | ||
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Depending on flash output, the Guide Number (GN) may be from 1.4 (minimum) to 10 (FULL).
ISO sensitivity factor |
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| ISO sensitivity (x) |
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| 200 | 400 |
| 800 | 1600 | 3200 | 6400 | K = | |
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ISO sensitivity factor (K) | 1.0 | 1.4 |
| 2.0 | 2.8 | 4.0 | 5.6 | 200 |
Aperture
Aperture can be set to values between the maximum aperture for the lens and f/22. Check the maximum aperture for the lens.
The lens may cast shadows over objects close to the camera, causing vignetting, or be too bright even at minimum output.
| Lens | Approximate distance at |
| which vignetting occurs | |
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14 | – 42 mm | 0.35 m |
17 mm | 0.25 m | |
40 | – 150 mm | 1.0 m |
14 | – 150 mm | Flash can not be used |
•Use optional
With this camera, you can use one of the separately sold external flash units to achieve a flash suited to your needs. The external flashes communicate with the camera, allowing you to control the camera’s flash modes with various available flash control modes, such as
An external flash unit specified for use with this camera can be mounted on the camera by attaching it to the camera’s hot shoe. You can also attach the flash to the flash bracket on the camera using the bracket cable (optional). Refer to the documentation provided with the external flash units as well.
Functions available with external flash unitsOptional flash | Flash control mode | GN (Guide number)(ISO100) | RC mode | |
GN50 | (85 mm*) GN28 (24 mm*) |
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FP TTL AUTO, FP MANUAL | GN36 | (85 mm*) GN20 (24 mm*) |
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GN20 | (35 mm*) | – | ||
MANUAL | GN14 | (28 mm*) | – | |
GN11 |
| – | ||
GN22 |
| – | ||
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* The focal length of the lens that can be used (Calculated based on 35 mm film camera).
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Information
EN 105