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Speedlights
Designed to complement the versatility of the F3, the Nikon SB-12 is a direct-mounting electronic flash unit offering fully automatic through -the -Iens flash output control. Even with the camera on automatic, the proper synchronization speed of 1/80 sec. is automatically set. Then, while the shutter is open, the camera's Silicon Photo Diode reads the light reflected off the film and tells the flash unit to cut itself off when the exposure is correct . With a guide number of 25 (ASA 100 and meters) or 40 (ASA 25 and feet), the SB -12 Speedlight provides just the right amount of light for subjects located between 0.6m- 15m (2ft-49ft). As soon as the flash is recycled and ready to fire, an LED ready -light inside the finder goes on. The
40same LED blinks to let you know when the light is insufficient for proper exposure.
And for those photographers needing even more power and versatility, Nikon has created the SB-ll Speedlight. It has a gUide number of 36 (ASA 100 and meters) or 60 (ASA 25 and feet) and gives you a choice of three auto- matic shooting apertures - I/4, £/5.6, and £/8 at ASA 100. When used with the F3 via a special TTL connecting cord, it provides the same automatic through -the -Iens control of the flash exposure as the SB- 12. Other features include a bounce head and a removable sensor for auto- matic use with other cameras .
