SPECIFICATIONS ---------------
All performance data are for normal·temperature operation [20°C (68°F))
ElectronicAutomatic silicon·controlled
constructionrectifier and series circuitry
Guide number 25 (ISO 100 and meters); 18 (with wide·flash adapter) 41 (ISO 25 and feet) ;
30 (with wide·flash adapter)
Angle of coverage
| Horizontal | Vertical | Usable lens | |
Normal | 60° | 45° | 35mm or longer | |
With wide·flash | 70° | 53° | 28mm or longer | |
adapter | ||||
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Bounce capability Flash head can be tilted down to - yo or up to 90°
Flash duration Approx. 1/ 1700sec. (at M sett· ing) or 118000 sec. (at MD setting)
Power source Four 1,5 V AA·type alkaline· manganese, manganese or NiCd batteries ; optional Battery Pack SD·7holding six C·type batteries is available as an external power sou rce
Power switch Three positions are provided
-OFF, STBY (for standby) and ON ; at STBY position with the Nikon F·501/N2020, F·4011 N4004, F·301/N2000, FA, FE2 or FG, SB·22tums off auto· matically when flash unit is not used for one or two minutes and turns on when camera exposure meter is on
Number of flashes and recycling time at manual full light output
Number of flashes Recycling time
Battery type
(approx. )' (approx.)
AA·type | 200 times | 4sec, | |
alkaline·manganese | |||
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55 times | 8sec, | ||
70 times | 3sec, | ||
C·typealkaline· | Up to 100 times | 2sec, | |
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manganese inside | Up to 300 times | 3sec, | |
the optional SQ·7*' | Up to 600 times | 30sec, | |
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'For autofocus operation assisted by the AF illuminator, less number of flashes available,
••With four AA·type alkaline·manganese batteries installed in the 58·22,
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