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General| Bounce Angle | 90 degrees |
|---|---|
| Swivel Angle | 180 degrees |
| Power Source | 4x AA batteries |
| Tilt Head | Yes |
| Swivel Head | Yes |
| TTL Flash Control | Yes |
| Manual Flash Control | Yes |
| Type | Electronic Flash |
| Guide Number | 20 (ISO 100, m) |
| Compatibility | Nikon SLR cameras |
Instructions for using the SB-20 with Nikon F-401/N4004 cameras.
Step-by-step guide for loading batteries into the flash unit.
How to securely mount the flash unit onto a camera's hot shoe.
Instructions on adjusting the flash head's zoom and angle.
Setting the SB-20's flash mode selector to TTL for auto flash.
Configuring camera exposure mode and lens aperture for programmed TTL.
Turning on flash, checking readiness, taking the shot, and powering off.
Selecting camera's autofocus mode (S or A) for flash photography.
Adjusting lens aperture based on lens type for autofocus flash.
Verifying focus confirmation and executing the shot.
Determining aperture for TTL flash using film speed and distance range.
Setting mode to A, aligning film speed, reading distance, and selecting aperture.
Setting mode to M, aligning film speed, and choosing aperture for manual flash.
Adjusting light output and aperture based on distance and film speed.
Instructions for using OFF, STBY, and ON positions of the power switch.
Using TTL mode for fill-in flash photography with backlit subjects.
Using A mode for fill-in flash photography with backlit subjects.
Using M mode for fill-in flash photography with backlit subjects.
Methods for diffusing light, including bounce flash and diffusers.
Connecting multiple flash units for TTL synchronized photography.
Cords and adapters for connecting and synchronizing flash units.
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