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Sigma BF : Specifications and Opinions

The Sigma BF is a mirrorless camera with FF (1.0x) sensor and 24.1 megapixels manufactured from 2025. The range of sensitivities, including ISO extension, is 6 - 102400 ISO and it has a continuous shooting (burst mode) of 8 FPS. The average price, when it has been added to the JuzaPhoto database, is 2503 €;

2 users have given it an average vote of 9.5 out of 10

Sensor
Format	Fullframe, 36 x 24 mm (image ratio 3:2, crop factor 1.0x in comparison with FF)
Resolution	24.1 megapixel (pixel pitch 6.00 μm)
Sensor type	CMOS BSI (sensor readout: 1/40)
ISO sensitivities	6 - 102400
File formats	JPEG, RAW
Esposure
Shutter speeds	30" - 1/25000
Exp. compensation	+/- 5 stops at 1/3 steps
Exp. modes	M, S, A, P
Metering modes	Multi-Area, Semi-Spot, Spot
Features
Mount	L-Mount (click here to view all compatible lenses)
Stabilization	No
Continuos shooting	8 FPS
Pre-Burst	No
Live View	Yes
Video mode	6K (5760x3240p) @ 30 FPS
WiFi	No
GPS	No
USB	USB-C (3.2)
USB Charging	Yes
Computing Features
ND Long Exposure	No
Pixel Shift	No
Focus Stacking	No
Startrail/Composite mode	No
Astrotracer	No
Camera body and built
Touchscreen	Yes
LCD	3.1″, 2.1 Mdots, 1024 x 680 pixels, fixed
Viewfinder	No viewfinder
Flash	No
Internal memory	230 GB
Storage
Storage, Slot 2	not available
Shutter	Electronic
Battery
Weather sealing	Yes
Weight	446 g
Dimensions	130 x 73 x 37 mm
Buy
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Reviews

What do you think about this camera?

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The following opinions have been automatically translated with Google Translate.

Hello_pizzo

sent on July 26, 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.

Henry55

sent on June 26, 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

Maskara_snake

sent on May 02, 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.

Photos taken with Sigma BF

Tokyo from my window

by Juza
36 comments, 6503 views

HI RES 21.8 MP

Manarola, after sunset

by Juza
26 comments, 5527 views

HI RES 24.1 MP

Miriam Nan - In the Snow

by Juza
17 comments, 4872 views

HI RES 16.3 MP

Miriam Nan - Snow trekking

by Juza
7 comments, 4353 views

HI RES 21.3 MP

Sunset in Manarola

by Juza
13 comments, 4161 views

HI RES 22.8 MP

Miriam Nan - Excursion in Val Varaita

by Juza
5 comments, 2965 views

HI RES 22.3 MP

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Miriam Nan - Beautiful as the Sun

by Juza
14 comments, 3536 views

HI RES 19.6 MP

The theatre of Busseto

by Juza
9 comments, 2472 views

HI RES 23.9 MP

Miriam Nan - Between Light and Snow

by Juza
4 comments, 3533 views

HI RES 14.1 MP

Geisha Show

by Juza
13 comments, 3408 views

HI RES 21.0 MP

Nuances of the sky and the sea, Manarola

by Juza
13 comments, 2788 views

HI RES 23.5 MP

Former Church of Rigosa

by Juza
4 comments, 2420 views

HI RES 24.1 MP

Piazza di Busseto

by Juza
7 comments, 2580 views

HI RES 24.1 MP

Sunset over Aizu

by Juza
11 comments, 3054 views

HI RES 20.6 MP

Violets among the moss

by Juza
13 comments, 2023 views

HI RES 24.1 MP

Miriam Nan - Black and White in the Alps

by Juza
5 comments, 2531 views

HI RES 19.5 MP

Miriam Nan - Backlight on the Rocks

by Juza
1 comments, 2251 views

HI RES 22.4 MP

Miriam Nan - Moon Boot

by Juza
2 comments, 2131 views

HI RES 24.1 MP

Miriam Nan - Backlight in the Snow

by Juza
0 comments, 2396 views

HI RES 22.8 MP

Silhouette at sunset, March 2025

by Juza
6 comments, 1252 views

HI RES 18.9 MP

Miriam Nan - Walk in the snow

by Juza
1 comments, 2321 views

HI RES 19.3 MP

Miriam Nan - Among the houses of Pontechianale

by Juza
0 comments, 1603 views

HI RES 24.1 MP

Dave Etchells (shot with Sigma BF)

by JuzaPhoto Samples
4 comments, 2801 views

HI RES 24.1 MP

The sample photos are selected automatically between all photos posted by JuzaPhoto members, using the camera and the lens selected in the techs. If you find evident errors (e.g. photos taken with cameras and lenses that are not available yet), you can contribute to improve the page by sending a private message to the user that has entered incorrect values in the photo caption.

Reviews » Cameras » Cameras Sigma » Sigma BF

Sigma BF : Specifications and Opinions

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Reviews

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Photos taken with Sigma BF