An update of the workhorse and highly regarded SB-22, the SB-22s has a number of differences from its predecessor. The most important differences are the change to flash duration (1/1,700 to 1/1,100) and the inclusion of two additional automatic (A3 and A4) modes at the expense of the MD (1/10 power) mode. While the size is the same, it also dropped 1.4 oz in weight (40g). It was introduced in 1998.
GN: 92 (ft), 28 (m)
Weight: 7.4 oz. (210g)
Size:
4.1” (105mm) tall x 2.7” (68mm) wide x 3.1” (80mm) deep
Power: four AA batteries
Recycle Time: 5 seconds minimum (full discharge)
# of Flashes: ~230 at full manual
Flash Duration: 1/1,100
Coverage: (70 degrees horizontal, 53 degrees vertical) 28mm lens
Case: SS-22s for main unit
Key Features: TTL flash control on most TTL-capable Nikon bodies; Full power TTL, manual, and four automatic settings (for choice of apertures). The SB-22s can synchronize with up to three additional flashes. Head tilts from –7 degrees below horizontal up to 90 degrees above horizontal.
http://www.bythom.com/sb22s.htm
