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Leica SF 40 Flash (New)


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Was: $825.00
Now: $790.00
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Product Overview

Optimized for use with Leica's latest cameras, the SF 40 has TTL support for automatic exposure and metering and it features a compact design with a useful output. Rated with a guide number of 131' at ISO 100 and 105mm, this unit can easily illuminate a room or subject. Also, it has a zoom range of 24-105mm, which can be expanded to 16mm with the use of the pull-out diffusion panel, for excellent coverage with your lenses. On top of this, an LED video light with 9 output levels is available for lighting a scene for high resolution video capture.

Fully featured as a flash, the SF 40 offers both tilt up to 90° and a full 360° of rotation for complete bounce coverage. It can also be set as a wireless TTL slave flash when used with a compatible master unit. Recycle time ranges from 0.1-4 seconds and it runs on 4 AA batteries. Additionally, it has support for slow, high-speed, 1st and 2nd curtain sync modes.

  • Guide number at ISO 100 of 131' at 105mm and 89' at 35mm position
  • Full manual control option from 1/1 to 1/256 power
  • Recycle time of 0.1 to 4 seconds
  • Approximately 220 to 1,700 flashes on a single set of fully-charged batteries
  • LED run time of about 3.5 hours with new batteries
  • Color temperature of 5600K
  • Wireless slave and wireless slave with TTL functionality
  • Exposure compensation from -2 to +2 EV in 1/2 step increments
  • AF assist beam with range of 2.3 to 16.4'
  • Flash duration of 1/800 to 1/20,000 second
  • Red-eye reduction modes
  • Two selector dials on the back of the flash for changing modes and adjusting power settings
  • LED light has 9 steps of output levels


Mount:  Shoe
Guide No.:           131.23' (40 m) ISO100 at 105 mm position
Exposure Control:            Manual, TTL
Vari-Power:        1/1 - 1/256
Bounce Head:     0° to +90°
Swivel Head:       360°
Coverage:           16 mm - 105 mm (Full frame)
Zoom Head         Full frame: 24 mm - 105 mm
Off Camera Terminal:      None
Recycle Time:     Approximately 0.1 - 4 seconds
Flash Duration:   1/800 - 1/20000 sec
Flash-ready Indicator:     Yes
Compensation    -2 EV to +2 EV (in 1/2 EV steps)
Power Source:    4x AA Batteries
Dimensions (WxHxD):      3.3 x 2.4 x 3.3" / 85.0 x 61.0 x 85.0 mm
Weight: 7.16 oz / 203 g