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Leica SF 40

Compact flash for select Leica cameras

Item # 91014624

This sleek, simple-to-use flash lets you add light to your subject for improved performance in dimly lit environments.

This sleek, simple-to-use flash lets you add light to your subject for improved performance in dimly lit environments.

Item # 91014624

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$560.00

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About the Leica SF 40

Add better light to your compositions

An external flash is one of the most useful tools in a photographer's gear bag, adding controlled light to your subject for improved exposures. If you're a Leica shooter, the SF 40 can help you take excellent low-light photos without adding a ton of heft to your camera or your bag.

Add better light to your compositions

An external flash is one of the most useful tools in a photographer's gear bag, adding controlled light to your subject for improved exposures. If you're a Leica shooter, the SF 40 can help you take excellent low-light photos without adding a ton of heft to your camera or your bag.

Versatile, compact design

The tilting/swiveling head lets you bounce light off a wall or ceiling for natural, even exposures. You can also face it forward when you're outside to add flattering fill light to portraits — especially helpful for avoiding harsh shadows when shooting in bright sunlight.

Geared toward photographers and videographers

I use bounce flash for still photography at nearly every event I cover. But the SF 40 is equally helpful for videographers, thanks to a selectable constant-light mode with adjustable output level for recording video. I especially like this flash's compact, lightweight form factor.

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Product highlights:

  • designed for use with select Leica cameras, including S, SL, M, Q, and CL Series bodies
  • adds high-quality fill or bounce flash to your subject
  • ideal for portraits, indoor events, and product photography
  • flash head can be tilted 90° upward and swiveled 180° left and right
  • selectable constant-light mode with adjustable output level for recording video
Design and control:
  • compact, lightweight design
  • rotary control dials
  • manual, automatic, and TTL (Through The Lens) exposure modes
  • automatically adjusts to focal lengths between 24 and 105mm (35 mm equivalent)
  • maximum guide number: 40 (at ISO 100)
Warranty and other info:
  • includes clip-on softbox and mini-stand with 1/4" thread
  • uses four AA batteries (not included)
  • 2-1/2"W x 3-1/2"H x 3-1/2"D
  • weight: 7.35 oz.
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # 14624

What's in the box:

  • SF 40 flash unit
  • Soft box
  • Flash stand
  • Soft case
  • Quick Start Guide
  • Guarantee card
  • FCC Note

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More details on the Leica SF 40

Mark G.

Product Research

Features

Overview: The Leica SF 40 system flash is designed for the S, SL, and M series cameras. It can also be used with Leica Q and CL cameras. It has a guide number of 40 at ISO 100 (105mm position), and coverage from 24-105mm. The compact, powerful flash comes with a flash stand, soft box, and handy storage case.

Adjustable Head: The SF 40 is capable of indirect and bounced flash. The flash head can be swiveled horizontally from 0° to 180° in both directions, with positions at 30°, 60°, 90°, 120°, 150°, and 180°. The head tilts upward from 0° to 90° with positions at 45° 60°, 75°, and 90°.

Soft Box: The included soft box clips onto the front of the flash head, and provides a softer light when full direct flash is not needed.

Compatible Focal Lengths: When controlled by the camera, the flash automatically adjusts to focal lengths from 24mm to 105mm (35mm equivalent). When the wide-angle diffuser is used, flash coverage is available for ultra-wide-angle exposures down to 16mm.

Flash Head: The flash head features a pull-out reflector panel that can help illuminate areas without harsh shadows. In addition, the flash has a spring-loaded wide-angle diffuser that helps provide better coverage for wide-angle shots.

AF Auxiliary Light: The SF 40 has a small light that assists the camera during autofocusing when lighting is low. The AF Auxiliary Lamp projects a striped pattern onto the subject that the camera uses for focusing. It has a range of 2.3' (0.7m) to 16.4' (5m) when a 50mm lens is attached to the camera. The camera must be set to Single AF (S-AF) in order for the AF Aux Lamp to activate.

Video Light: For videographers, the SF 40 has a constant LED video light. Using the back panel setting ring, you can set the output to any of 9 brightness levels.

Flash Modes Selection: On the rear panel, the rotary mode dial lets you set the desired Flash Mode from the following:

  • Video Light: Turns on Video Light (9 selectable brightness levels)
  • SF: Remote release without pre-flash
  • SD: Remote release with pre-flash
  • M: Manual setting (output levels selectable from 1/1 to 1/256 in 0.3EV increments)
  • A: Full automatic flash mode (exposure controlled by the camera)
  • TTL: Full automatic mode with selectable flash exposure compensation (+/- 2 EV in 0.5EV increments)

Stand: The SF 40 flash unit comes with a flash stand that can be used when remote flash is needed. The stand has a 1/4" thread for attaching it to a tripod, or it can be placed on a tabletop or other flat surface.

Power: The Leica SF 40 is powered by four "AA" batteries (not included).

Specifications:

  • Guide Number: 131.23' / 40 m at ISO 100 (105mm position)
  • Coverage (full frame): 24-105mm (16mm with wide-angle adapter)
  • Manual Output Levels: 1/1 to 1/256
  • Flash Duration: 1/800 to 1/20000
  • Video Light Duration: approx. 3.5 hours
  • Color Temperature: approx 5600 K (full output)
  • ISO Range: ISO 50 to ISO 50000
  • Number of Flashes: 220 to 1700 (depending on battery type and flash mode)
  • Flash Recycle Time: 0.1 to 4 seconds
  • AF Auxiliary Lamp Range: 2.3' to 16.4' (0.7-5m) with 50mm lens
  • Dimensions: Width 2.48", Height 3.451", Depth 3.5"
  • Weight: 7.35 ounces.

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Add more light at greater distances

The Leica SF 60 offers these features:
  • automatically adjusts to focal lengths between 24 and 200mm (35 mm equivalent)
  • maximum guide number: 60 (at ISO 100)
  • LCD display screen
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