Leica SF 40 Flash

Leica SF 40 Flash

Leica SF 40 Flash

B&H # LEFCCSF40 MFR # 14624
In Stock

Product Highlights

  • Compatible with Leica TTL
  • Guide Number: 131' at ISO 100 and 105mm
  • Zoom Range: 24-105mm (16mm with Panel)
  • LED Video Light with Nine Output Levels
  • Tilts Upward 90°
  • Rotates Left & Right 180°
  • Wireless Slave Functionality
  • Recycle Time: 0.1-4 Seconds
  • Slow, High-Speed,1st & 2nd Curtain Sync
  • Runs on Four AA Batteries
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Leica SF 40 overview

  • 1Description

Punch up your scene with some additional light from the SF 40 Flash from Leica. 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 nine 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 slave flash when used with a compatible master unit. Recycle time ranges from 0.1-4 seconds and it runs on four 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 mode
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
UPC: 799429146245
In the Box
Leica SF 40 Flash
  • External Diffuser
  • Soft Case
  • Flash Stand
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Leica SF 40 specs

    Mount Shoe
    Guide No. 131.23'  / 40 m ISO 100 at 105 mm Position
    Exposure Control Manual, TTL
    Vari-Power 1/1 - 1/256
    Bounce Head 0 to +90°
    Swivel Head 360°
    Coverage 16 - 105 mm (Full Frame)
    Zoom Head Full Frame: 24 - 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 (W x H x D) 3.3 x 2.4 x 3.3" / 85.0 x 61.0 x 85.0 mm
    Weight 7.16 oz / 203 g
    Packaging Info
    Package Weight 0.85 lb
    Box Dimensions (LxWxH) 4.5 x 4.4 x 3.9"

    Leica SF 40 reviews

    SF 40 Flash is rated 4.2 out of 5 by 23.
    Rated 4 out of 5 by from Great small flash for Leica Q. Well thought out package Much improved over the SF 26 which does not rotate to the side. The SF40 is a bit smaller (shorter), rotates 360, has a bounce card attached, wide angle diffuser and steno diffuser as well, all included in a soft pouch. The only feature not that well described is how to get the zoom feature to work as shown the zoom chart under the bounce flap: to zoom to different ranges, simply continue to hold down the power button for more than 3 seconds. If you hold it pressed for about 10 seconds you'll see and hear the flash zooming out or in. The color of the LED will change according to the zoom range.
    Date published: 2016-05-31
    Rated 5 out of 5 by from Fine Flash While only received I have test driven the flash with both my Leica S 006 and M 240. For the M 240 it is a massive improvement over the SF 24D which frankly was an awful flash. The SF 58 was fine on the S but far too large for the M making unbalanced. On the S it is great where fill flash is needed for exterior shots and fine for interior as well. I don't shoot in a studio where I would suspect the SF 58 would be a better choice but for me this is an ideal balance of size and performance. I have experience with a very similar flash made by Nissin used with my Nikon 810. While I have the pro Nikon flash as well I have been very satisfied with its performance. It is an ideal flash for taking on vacation.
    Date published: 2016-02-03
    Rated 5 out of 5 by from Kind of wonderful I've wanted an easy to travel with flash for the M and took a look at SF40 expecting to get the SF26. The SF40 is kind of wonderful though. It's seriously small. With 4 AA's (wish it was 2) not feather light but it's mostly battery weight and the body is barely bigger than the 4 batteries. Controls could be easier -- want TTL with flash exp comp or adjust manual power? Just dial it in with a physical dial! Select mode with the other smaller dial. Want HSS with the M? It *just works*. Slave modes with and without pre flash ignore included. Flash head pivots up and rotates around full 360, no limitations, action has a good feel to it. Wide diffuser and bounce card (with slick magnetic action) built in. Comes with a stofen type diffuser stand and case (not to recent Leica standards but who cares). Oddly, mine didn't include a manual. Video light can be useful, even if the video capabilities of the M are meager at best. Even the price, just 50% above a Nissin i40 for any other system is almost dumping by Leica standards. SF26 is a 200% markup over Metz versions. The Leica font and general treatment of the i40 makes it look much better imho, I didn't mind the markup on this one. The drawbacks are few from what I can see so far. Exp comp dial is too easy to turn. Shape is somewhat awkward to store most compactly. Dials not lit up. Not as light at sf26 with two AAA's. No 'auto' mode for non-TTL M6 (scraping the bottom of request barrel here). It's a full big flash in a small body though. And it's a pleasure to handle. Hard to ask for more. Just get it. A quick tip -- Porta Brace PB-BLMG case fits it perfectly.
    Date published: 2016-04-25
    Rated 5 out of 5 by from Totally satisfied! Many decades ago my father introduced me to the large Metz flash he successfully used with his Leica M2 camera and I later bought the Metz 54 MZ3 flash for my R8 and M6 TTL cameras and have treasured using it as well. When I recently bought the Leica T camera so that I can use my R and M lenses digitally, I was puzzled upon discovering that there is no Metz flash or adapter compatible with it. I searched this site for a workable flash nevertheless and the SF 40 appeared. I bought it and fortunately it has features that are better than expected and ease in using it that have wiped away my frustration about the non-existence of a Metz flash for the T camera. What a relief! Thank you, Leica for offering this and thank you, B&H, for stocking it!
    Date published: 2018-05-16
    Rated 3 out of 5 by from Reasonable flash for M I don't use flash very often. I wanted something reliable, easy to use and that was compact enough to use with my M. Good weight and handling. Power is sufficient for close in and most fill situations. Controls are easy to use, but stops for control wheels could be much more snug. There is no instruction manual so I'm learning controls by trial and error. The tilt and swivel alone make it far superior to the SF 24D that it replaced. Handles fairly well on a cord, but when it slipped out of my hand, the slide out bounce reflector came off. It clicked back in place, but the build of that component does not instill confidence in its suitability for rough and tumble situations. Good case. Diffuser works well; slides on ( and pops off if not pushed snuggly onto the flash head). Overall, I'm a bit disappointed in the build given the price: the form factor and power are what I wanted; some instructions might help, but operation is pretty simple.
    Date published: 2017-01-01
    Rated 4 out of 5 by from Works Well Nice useful flash for relatively close low light conditions. The SF 40 is the simplest flash I have. I have used on my SL and T it seems to work well. I bought it for when I do need a little extra light and not have to carry larger heavier flashes. I have used it in TTL and M modes. In TTL you have to adjust the flash compensation in the camera. I have tried the HS sync on the SL and it works although limited in subject distance. The HS sync is automatic once you get over the 1/250 camera native high flash sync speed. The video light is not very useful unless you a very close to the subject. Overall I really like the flash due to its small footprint. I have only used the flash with Leica R and M lenses on the SL and not the standard 24/90 lens, and the 18-55 and 11-23 lens on the T.
    Date published: 2016-03-12
    Rated 4 out of 5 by from Great performance in a convenient size I like the performance/size ratio of this flash. It performs way better than de SF26. I use it with my Leica M-P as well as my Leica T. I originally bought for my M but given the performance I use it now with my Leica T as well. I hardly miss the sf 26 The thing that I personally dislike is the fact that it is a rebranded model with a price tag way above the sibling.
    Date published: 2016-02-10
    Rated 4 out of 5 by from More than meets the eye Features: from fully auto to TTL to fully manual, the SF 40 provides a pleasing range of lighting options. I use Leica M-P Typ 240 and Monochrom Typ 246 bodies and lenses from 21mm to 90mm. I tested the SF 40 with these combinations. Auto/manual zoom of the internal flash tube/reflector works well. Diffusers: built-in diffuser panel; comes with a slip-on diffuser cap. Coverage: as expected, there is some fall-off with the 21mm lens (outside the published coverage range); from 24mm on to 90mm, coverage is quite good in uniformity and output. In the middle focal lengths and appropriate distances, the auto and TTL settings work well. At the fringes, it's better to switch to manual. (Remember GN calculations?) Fill: I used the SF 40 outdoors for portrait fill. Nice and soft. As expected, it performed better with 50mm Noctilux than 75mm Summicron mainly because of closer working distance. Much simpler than toting reflectors or studio strobes. Build: although made in China, the SF 40 features make it clear the flash was designed by Leica. Build quality is good but not the usual Leica heft (4 stars). The hot shoe mount feels flimsy and thin. The lock/release button is a bit stiff out of the box but may wear in over time. Tilt and swivel feel solid. The battery door is fiddly (4 stars). When the door is released, the hinge pops up and out, away from the battery compartment before pivoting the door out of the way. To close the battery door, one must push in at the hinge first before pivoting the door down and locking it. Since I don't leave batteries in my flashes, this is something I don't like but will have to get used to. (4 stars) If you want to know how the SF 40 and supplied case fit in your camera bag, insert a baseball. The SF 40 + case, is the same size and shape. Bleah. (4 stars) I generally shoot without flash, but for those times when supplemental light is convenient, this is the best Leica unit I've found.
    Date published: 2017-06-18
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