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Sigma BF : Specifications and Opinions




Sigma BFSigma BF, front

Sigma BF, back

Sigma BF, top



The Sigma BF is a mirrorless camera with FF (1.0x) sensor and 24.1 megapixels manufactured from 2025.
3 users have given it an average vote of 9.7 out of 10


If you have used this item, you can add your vote:  


SpecificationsReviewsCompareBuyPhotos


Sensor
FormatFullframe, 36 x 24 mm (image ratio 3:2, crop factor 1.0x in comparison with FF)
Resolution24.1 megapixel (pixel pitch 6.00 μm)
Sensor typeCMOS BSI (sensor readout: 1/40)
ISO sensitivities6 - 102400
File formatsJPEG, RAW

Esposure
Shutter speeds30" - 1/25000
Exp. compensation+/- 5 stops at 1/3 steps
Exp. modesM, S, A, P
Metering modesMulti-Area, Semi-Spot, Spot

Features
Mount L-Mount (click here to view all compatible lenses)
StabilizationNo
Continuos shooting8 FPS
Pre-BurstNo
Live ViewYes
Video mode6K (5760x3240p) @ 30 FPS
WiFiNo
GPSNo
USBUSB-C (3.2)
USB ChargingYes

Computing Features
ND Long ExposureNo
Pixel ShiftNo
Focus StackingNo
Startrail/Composite modeNo
AstrotracerNo

Camera body and built
TouchscreenYes
LCD3.1″, 2.1 Mdots, 1024 x 680 pixels, fixed
ViewfinderNo viewfinder
FlashNo
Internal memory230 GB
Storage
Storage, Slot 2not available
ShutterElectronic
Battery
Weather sealingYes
Weight446 g
Dimensions130 x 73 x 37 mm

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Sigma BF, buy on Ebay Ebay


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Reviews

What do you think?


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Google Translate  The following opinions have been automatically translated with Google Translate.


avatarjunior
sent on 26 Luglio 2025

Pros: Materials, graphic consistency between menus, optics and machine design, quality optics, sensor, files

Cons: Lack of viewfinder, lack of Stacked sensor (or mechanical shutter), attachment for the shoulder strap

Opinion: A small, full-frame, beautiful camera built with quality materials. Among the various aspects, what I appreciated most is that Sigma has been attentive not only to the design of the camera but also to the design of the optics (quality) and above all to the graphic consistency with the menu. Obviously the camera is capable of providing quality files with a look almost like that of Leica. I, who am not a professional photographer but shoot for passion, really appreciated this initiative by Sigma that reminded me a lot of the first Fuji xt. For my way of photographing, I am not interested in the 60 mpx of the sensor, the burst or even superfast AI AF tracking algorithms. I look for a camera to shoot every day, at my own pace and since I do it for passion, I can spend even more if I am provided with a tool that is not only performing but also beautiful to look at and touch. Unfortunately, however, in my opinion two fundamental points are missing to make it really usable as a single camera, the first is the electronic viewfinder which is missing and cannot be added even as an option, the second is the problem of rolling shutter. Let's be clear, it has improved a lot compared to FP but we are not there yet. Personally, I use a camera of this type for family photos, to have fun during my outings and I find it unacceptable to have problems in dynamic shots just because the mechanical shutter is missing. As far as I'm concerned, the camera is rejected for these two shortcomings, I appreciate Sigma's effort and I want to say that if it hadn't had these shortcomings that are fundamental to me, it would have been my ideal camera and I would have kept it even if it had cost 500-600€ more. I hope sigma will adjust the shot with a BF more attentive to the needs of photographers or a new FP with a modular design but consistent with the new line of products just presented. Too bad really, it is an incomplete masterpiece.

avatarjunior
sent on 26 Giugno 2025

Pros: Beautiful files very nice handy a great object Of design...

Cons: Battery lasts nothing ... after 20 minutes of shots it's over ... camera after a few minutes of work heats up a lot

Opinion: Good camera... Great design object good files both RAW and jpeg... but the camera to take photos every day is not this .., it's okay if it's the 5 or 6 camera .. and it's a beautiful game ... I've been using it for 3 weeks but when I want to take photos I go back to my Leica or my Nikon

avatarjunior
sent on 02 Maggio 2025

Pros: handling, sensor, L-mount, menu, preset filters (really not negligible, well thought out and customizable), design.

Cons: The only real flaw is the lack of a second slit for the shoulder strap, forcing you to mount the Peak Design cleat underneath or hold a wrist strap. - Battery lasts short - lack of real pancakes

Opinion: Spectacular car, at least for me. I was lucky enough to receive it in Tokyo during the presentation and, after a few months of use, I can say that it represents a completely different concept of camera, and this is the thing I appreciate the most. The criticisms that have been leveled at you, in my opinion, should be scaled down after real use in the field. 1. Absent viewfinder: for a young and non-professional audience, it is not a problem at all. I come from the world of professional photography and I understand its importance in certain areas, but those who choose this camera do not do so for work use. If you think you're using it professionally, you're probably looking at the wrong product. 2. Built-in memory: Great choice. It is easier and more immediate to connect the machine via USB-C (now standard everywhere) and access photos directly, even from iPhone. I never ran out of space, even shooting in RAW. On the road I lost tickets several times or I forgot the reader: here this problem does not arise. 3. Fixed screen: it might seem like a limitation, but personally I have never had the need to tilt it. I imagine that the choice was also dictated by the aluminum unibody construction, which makes it difficult to integrate a mobile mechanism without increasing costs. 4. Battery: yes, it doesn't last long. But it charges like a smartphone, even from a powerbank, so the problem is easily circumvented. Just have a spare battery if you plan to use it heavily. 5. Touchscreen and menus: touch is not active everywhere, but the menus are so simple and direct that you will immediately learn how to use them. It's all designed for a non-technical audience, and that's why it's quick to manage. 6. The IBIS is missing: true, but it is not a machine designed for video. It holds up well to high ISOs, mounts the classic 24MP Sony sensor and, after using it, I can say that in the vast majority of situations it is not needed. Adding it would only drive up the price even further. 7. A single ring: here too, a consistent choice. It is enough if you understand how the interface works. It's not a machine for professionals, and it doesn't want to be. 8. No flash shoe: I never felt like a lack. If I need the flash, I use another camera. 9. Electronic shutter: some see it as a limit, but introducing a mechanical would only have complicated the construction without bringing real benefits for the users it is aimed at. It is a machine clearly designed for young people, accustomed to smartphones, who want to move on to something more serious but simple. I myself made my girlfriend try it: she is not a photographer, but she has some basis. She usually shoots with the iPhone, but she immediately got along very well with it. For you, it's perfect: excellent quality, intuitive operation and beautiful design. This camera has everything to become an icon, or at least the beginning of a new iconic line. I understand the criticism of those looking for pro characteristics, but I invite everyone to look at it with different eyes, those of those approaching photography for the first time. That's how I lived it, and that's how I'm enjoying it every day.

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