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Leica SF 40 flash
Leica SF 40 flashLeica SF 40 flashLeica SF 40 flash

Technical specification


  • Guide number see table inside back cover
  • Flash modes A and TTL with automatic TTL flash exposure compensation, M, Sd, Sf with fixed flash output level, for permanent light
  • Flash exposure compensation ±2 EV in 1/2 EV increments (with TTL), (Video)
  • Manual output levels 1/1 - 1/256 (with M, Sd, Sf)
  • Flash duration 1/800 s with full energy (with M, Sd, Sf), 1/800 - 1/20000 s with automatic (with A, TTL)
  • Video light duration approx. 3.5 hours with fresh batteries and maximum brightness
  • Color temperature approx. 5600 K with full output ISO range ISO 50 to ISO 50000
  • Number of flashes/flash recycle time (min.-max., depending on battery type and flash mode) 220-1700/0,1-4 s
  • Illumination of the zoom reflector for 24/28/35/50/ 70/80/105 mm. Setting displayed by the color in which a LED is set, from 16 mm with integrated wide-angle diffusion head, depending on flash mode automatic or manual setting 
  • Pivot ranges/engaging positions of the reflector head Vertical: 45°, 60°, 75°, 90° Horizontal in both directions: 30°,60°, 90°, 120°, 150°, 180°
  • AF auxiliary lamp Automatic activation, working range approx. 0.7 - 5 m
  • Special functions HSS flash with fast shutter speeds (with appropriately equipped cameras), high-speed flash synchronization; synchronization to the start or the end of the exposure, low-speed flash synchronization, reduction of red-eye effect (with appropriately equipped cameras, to be set there),
  • Wwireless flash with firing by light pulse from lead flash unit for firing with or without preflash
  • Power supply Alkaline-Manganese batteries 1.5 V, type IEC LR6 (AA/Mignon), or Lithium batteries 1.5 V, type IEC FR6 (AA/ Mignon), or Nickel-metal-hydride rechargeable batteries 1.2 V, type IEC HR6 (AA/Mignon), 4 St.
  • Power-saving system After 2/5 min (depending on flash mode) automatically switches to stand-by mode, switch off after 60 min
  • Dimensions (W x H x D) approx. 61 x 85 x 85 mm (reflector head to the front)/61 x 133 x 57 mm (reflector head up)
  • Weight (without power sources) approx. 200 g
  • Delivery scope Flash unit with slip-on diffusion attachment, pedestal, bag, instructions
Article number:14624
Datasheet (PDF):Leica SF 40 manual

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