Nikon SB27 Instruction Manual - Page 90

Specifications Flash mode selector • AUTO mode: TTL Auto Flash operation possible with cameras in Groups I thru VI (Monitor Preflash is available exclusively with cameras in Group I using a Nikkor lens with built-in CPU). Non-TTL Auto Flash operation possible with cameras in Groups I thru VII when camera setting switch is set to ˚ (usable apertures f/2.8, f/4, f/5.6, and f/8 at ISO 100.) • M mode: Manual flash operation possible with cameras in all groups. Light output amount variable from 1/1(full), 1/2, 1/4, 1/8 to 1/16 output. Power source Four AA-type alkaline-manganese (1.5V), lithium (1.5V), NiCd (rechargeable) (1.2V), or Ni-MH (rechargeable) (1.2V) penlight batteries External power source DC Unit SD-7: C-type alkaline-manganese (x 6) (optional) DC Unit SD-8/8A: AA-type alkaline-manganese (x 6) or AA-type NiCd batteries (x 6) Number of flashes and recycling time Batteries installed in the SB-27 Batteries Min. recycling No. of flash/recycling time (approx.) time (approx.) AA-type alkaline 5 sec. (using 140 times/5-30 sec. manganese fresh battery) AA-type NiCd 3.5 sec. (using 60 times/3.5-30 fresh battery) sec. Red-eye reduction Rear-curtain sync flash AF assist illumination Manual full output without use of AF assist illuminator LED, and zoom operation. Above data may vary according to battery brands or performance. A red-eye reduction lamp lights up for approx. 1 sec. before the flash fires. (Setting is only possible on the cameras in Group I (except F5) and Pronea 600i/6i) Possible with cameras featuring rear-curtain flash sync mode set on the camera. Automatically lights up to emit LED beam toward subject when performing autofocus in dim light or in the dark with Nikon AF cameras.