last update: 21 February 2002

  Nikon Speedlight SB-20

With a visually different flash head from any other Speedlight, the SB-20 is the first Nikon flash to include the now ubiquitous red autofocus assist lamp. Intended originally for the F-501/N2020, this is a versatile and underrated flash. It was introduced in 1986.


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98 (ft), 30 (m)
Weight: 9.2 oz (260g) (w/o batteries)
Size: 4.3” (110mm) tall x 2.8” (71mm) wide x 2.7” (70mm) deep
Power: four AA batteries
Recycle Time: 6 seconds minimum (full discharge)
# of Flashes: ~160 at full manual
Flash Duration: 1/1,200 to 1/15,000
Coverage: 35mm lens (60 degrees horizontal, 45 degrees vertical); also 28mm and 85mm settings.
Case: SS-20
Key Features: TTL flash control with most TTL-capable Nikon bodies; automatic and manual flash modes. Head can be titled from -7 degrees below to 90 degrees above horizontal. Zoom head covers 28mm, 35mm, and 85mm settings. The SB-20 can synchronize with additional off-camera flashes. Autofocus assist light.

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Other Speedlights
SB-1, SB-2, SB-3, SB-4,
, SB-6, SB-7E, SB-8E,
SB-9, SB-10, SB-E, SB-11,
SB-12, SB-14, SB-140,
, SB-16, SB-17,
, SB-19, SB-20,
, SB-22, SB-22s,
, SB-24, SB-25,
, SB-27,
, SB-30,
, SB-80DX


Don't Just Read the Web Site, Get the Book!

The above information was excerpted from the in-depth information in Nikon Flash Guide. Besides flash specifications, you'll find a full set of operating instructions for each flash in the book. Plus, most cameras from the Nikon F3 forward are covered in the detailed section on interactions and capabilities in the back of the book. That's all in addition to the clearest description of how the Nikon flash system works that opens the book. Click on the cover in the right column to order your copy from amazon.com!



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