camera. It screws into the tripod socket of the MD-4 and plugs into the remote terminal to provide three firing
rates–1, 2, or 3 frames per second. It has its own handy trigger button for use in vertical format shooting.
The Magazine Back MF-4 for shooting up to 250 frames without changing film is also available as an option.
• Possible with NiCd battery pack at 1/125 sec. or above with the mirror locked up.
Electronic Flash Units
Nikon Speedlights are dedicated electronic flash units and provide the perfect complement to your F3
High-Eyepoint camera. Just set the aperture and flash output is measured through the lens for correct exposures
regardless of the lens in use.
Speedlights SB-16A and 17
The SB-16A and SB-17 mount directly on the camera for automatic TTL flash exposure control. The SB-16A
features two flash heads for more natural bounce-flash portraits: main head tilts 90
°
and rotates 270
°
; the
secondary head faces straight ahead to provide catchlight in subject's eyes. Main head zooms in and out to match
the coverage of 28, 35, 50 and 85mm lenses with a guide number of 32 (ISO 100 and meters) or 105 (ISO
100/feet). The light, compact SB-17 has a guide number of 25 (ISO 100/meters) or 82 (ISO 100/feet) and
features a rotating flash head and tilting 90
°
flashtube module for convenient bounce flash.
Speedlights SB-11 and 14
When your require a bracket mounting unit, Nikon offers two, the SB-11 and SB-14. The powerful SB-11 has a
guide number of 36 (ISO 100/meters) or 118 (ISO 100/feet) and features a 120
°
tilting flash head for bounce
flash. The SB-14 requires a separate battery pack. It has a guide number of 32 (ISO 100/meters) or 105 (ISO
100/feet), and tilts 120
°
and rotates 120
°
for total bounce control. For automatic TTL control, these units must be
used with TTL remote cord SC-12
Speedlight SB-21A
The SB-21A lets you use TTL automatic exposure for macro photography, and a convenient focus illuminator
ensures pin-point focus adjustment. The flash head offers a 65
°
horizontal and 85
°
vertical angle of coverage, and
a wide illuminahon panel lets you shoot flash-to-subject distances closer than 40mm (approx. 1.6 in.). SB-21A
can be used with an external power source (AC or DC). Guide number is 13 (at ISO 100/meters) or 43 (at ISO
100/feet) with internal batteries, and 15 (or 49) with external power source.
