This review is adapted from WIRED.
There are cameras, and then there are statements. The Sigma BF is very much the latter. Sigma’s latest full-frame shooter has been floating around the rumor mill for months, and now that it’s here, I can confirm: this is one strange piece of hardware. After spending months with it, I’ve got feelings. Strong ones. And I’m not entirely sure whether I love it orfind it absolutely maddening. Maybe both.
What’s in a Name
Let me start here: the BF stands for “beautiful foolishness.” That’s pulled from a poem in The Book of Tea, and if that doesn’t tell you everything you need to know about this camera’s priorities, I don’t know what will. Sigma isn’t trying to compete with Sony, Canon, or Nikon here. Those companies make cameras for people who want to take pictures. Sigma made a camera for people who love the idea of cameras more than the actual act of shooting them.
And look, there’s nothing wrong with that. I own a shelf full of antique hand planes I almost never use. They look incredible, though. The BF fits that same energy, which means it’s built for a specific type of person, and that person might not be you.
A Body That Bats Last
The first thing you notice is how aggressively minimalist this thing is. It’s a single block of machined aluminum. No curves, no grip bumps, no ergonomic concessions whatsoever. Just a beautiful metal box with four buttons and a toggle wheel. One of those buttons is physical; the rest are haptic, which is a fancy way of saying they vibrate when you press them.
Holding it is an experience. After 15 years of reviewing cameras, I try not to use the phrase “feels good in the hand,” but I’m making an exception here in reverse: the BF feels genuinely bad to hold. Not tragic, but definitely awkward. One-handed use feels borderline unsafe. Two-handed works better, though the sharp edges remind you regularly that form was prioritized over comfort.
The only strap anchor is a single point, which means you’re locked into wrist straps only. No neck straps. That feels like an odd oversight for a camera that seems designed to be seen, not just used.
The Good Stuff
Let’s talk about what’s actually inside this weird little box. The sensor is a 24-megapixel full-frame unit, paired with L-mount lens compatibility. I tested it primarily with the 35mm f/2 DG, which is roughly the same weight as the body itself. The balance isn’t terrible, but a pancake lens would probably feel better up top. Sigma hasn’t released one for this mount yet, which is a shame.
The menu system and control layout are genuinely well thought out. There’s a tiny electronic window that shows relevant info depending on your mode, which I came to appreciate more than expected. The button arrangement is clean, and once you learn the logic, shooting becomes intuitive.
Image quality is where this camera punches above its weight. The 24-megapixel sensor is sharp, and Sigma’s color rendering leans slightly cool with a distinctive tone that I grew to really like. Shooting RAW gave me plenty of flexibility in post, and I never felt constrained by the sensor’s capabilities. For a camera this minimalist, the output is surprisingly professional.
Video came as a welcome surprise. It’s not spec’d like a cinema camera, but the 6K L-log footage has a certain filmlike quality when you push it through color grading. It’s got a bit of grain that feels organic rather than digital. That said, I suspect this depends heavily on your taste.
The Missing Pieces
Now for the part that will make most people swipe left. Sigma deliberately omitted several features that most photographers consider baseline:
No mechanical shutter. No viewfinder. No storage card slot. No IBIS. No Wi-Fi or Bluetooth. No hot shoe. No mic or headphone jacks.
The missing mechanical shutter is the biggest deal. Without it, you’re dealing with rolling shutter distortion when capturing fast motion. Under artificial lights, you’ll see banding in your images. Train tracks, kids playing sports, anything with quick movement or indoor lighting scenarios will give you problems. The rear screen doesn’t help here since it’s not great in bright light anyway, making it hard to spot these issues on location.
The lack of a viewfinder is where I personally draw the line. Hand me any camera, and I bring it to my eye out of pure habit. If you feel the same way, this camera will frustrate you immediately. The rear screen is also fixed, so forget tilting it for hip shots or unusual angles. In bright sunlight, cranking up the screen brightness helps slightly, but that devastates battery life. Sigma claims around 260 shots per charge; in direct sun, I’d get maybe two to three hours of shooting before dying.
The missing storage card slot is less painful than it sounds. There are 256 gigabytes of built-in storage, which is plenty for casual shooters. I never came close to filling it during my testing period.
Where It Fits
Here’s the thing: limitations can be a feature. The BF forces you to slow down. There’s no spray-and-pray option here. You think about your shot, set your aperture, and let the camera handle the rest. In aperture priority mode with auto ISO and shutter, I got my best results. The autofocus is surprisingly capable, with eye-detect that works most of the time, even at 8 frames per second. It’s not ideal for sports, but for everyday use, it’s plenty fast.
This isn’t a camera for everyone. It’s not even a camera for most people. At $2,200, you’re competing with some very well-rounded options from established players. But for the right photographer, someone who values the experience of shooting over the convenience of the workflow, there’s something kind of refreshing about it.
I don’t recommend this camera for most people reading this. But I also don’t think that’s the point. The Sigma BF isn’t trying to be your everyday shooter. It’s a cult camera in the making, the kind of thing that develops a devoted following twenty years from now.
Some cameras take pictures. This one just wants to exist.
