How much difference can half a stop of maximum aperture make? Let’s see if it is worth carrying a much bigger and heavier lens.
When I first saw the Viltrox 35mm f/1.2 Lab before it was launched at an expo back in March, I was very much curious about what difference it would make and how it could impact what photographers and videographers can do with it. Personally, I’m fond of the 35mm perspective for street photography, but I had a hunch that this lens might shine better in other applications. At this point, I could only make assumptions before testing the lens out, and here are a few of them.
First, it’s visibly large and heavy, so the first thing that anyone might think is that it might not be worth carrying around. Second is that we all know that focal length also plays a role in background blur, which means that f/1.2 at 35mm might not be as visually impactful as it would be on a longer focal length. Of course, the third would be that the great price point (compared to available 35mm f/1.4 options) might come with a trade-off.
Build and Feel
The Viltrox 35mm f/1.2 Lab is not just a big lens. It’s thick and bulky, which means that it’s not going to fit most rotating collar mounts. It weighs 910 grams and comes in at 4.8 x 3.5 inches (89.2 x 121.8 mm), and the biggest indication of its width is the fact that when you set it down with a full frame camera mounted, the base of the camera body will not sit flat on the surface because the lens barrel protrudes past it.

More than that, it’s built like a tank—and I mean literally. This lens is all metal. The body of the lens is made of matte metal, the mount is metal, and even the focus and aperture rings are made of textured metal. While this does contribute to the weight of the lens, it seems only fitting for a lens like this to be built this way, and that truly speaks to how Viltrox sets this lens apart from their more affordable lenses.

On the frontmost part is a 77mm standard filter thread alongside the reversible metal lens hood. Close to the end of the barrel is the focus ring, while on the other end is a manual electronic aperture ring that has no set markings. On the side are two customizable buttons, an autofocus switch, and a switch to remove the clicks on the aperture ring. A neat extra feature on this lens is that instead of focus markings on the lens, there’s a backlit screen on top that displays information that can be customized through the lens’ USB-C port and a computer.

Perspective and Bokeh
When talking about 35mm lenses, for most photographers, street photography would probably be the first to come to mind. However, considering the size and bulk of this lens, it might not help the photographer be inconspicuous. At the same time, since street photography often deals with the visual relationships of different visual elements, shooting wide open at f/1.2, while still applicable depending on the photographer’s style, might not always be ideal.

That aside, the 35mm is well loved because of the perspective that is close to (a little bit wider than) the perspective of human vision. Many would agree that the images taken by a 35mm lens are very easily relatable and feel authentic in terms of perspective. This lens, when photographing human subjects (not up close) in a dynamic environment, can give isolation through background and foreground blur while not overwhelmingly canceling out the environment. Instead, it gives isolation and emphasis on the subject that feels very natural and organic. There is stark separation from the background but still a natural-looking scene.
Low-Light Performance

Of course, given the extra half stop of aperture, the user gains more capabilities in shooting dim environments, and the secondary (in this context) benefit of a shallow depth of field can also be advantageous. This makes the lens extremely beneficial in shooting outdoor portraits at night or documenting events in low-light indoor venues. With the reliability of advanced subject recognition and tracking, shooting distant subjects at f/1.2 is now actually feasible because of how accurately the combination of the lens’ autofocus and the camera body’s tracking can work. With this, the user can come up with accurately focused exposures with less noise due to the fact that the extra half stop of aperture reduces the need to crank up the ISO. I did notice some lapses in high-speed bursts with moving subjects, which is something to be more careful with. However, with the right access to relatively close vantage points, this lens would be great for concerts and stage performances.
Night Photography

I have to admit that when I first saw this lens, photographing the night sky was the first use case I wanted to test it on. Generally, I shoot nighttime landscapes with a 20mm f/1.8, which gives me a good chunk of sky with a lot of foreground elements. Doing this with a 35mm will give you tighter perspectives but is wide enough to fit the Milky Way’s galactic core. I imagined that if I could shoot that at f/1.2, I could probably get some of the cleanest (non-tracked) images I could, because ISO 400–500 would probably suffice. Sadly, during my test of this lens, the weather conditions weren’t close to ideal to get the results I expected. However, I did notice that shooting at f/1.2 in such an environment gives a significant vignette with this lens. While that can be compensated for in post, in this use case, this lens would not be my top choice for shooting the night sky.
Where Would This Lens Shine Best?
Just like any lens, the combination of perspective and depth of field only contributes to how you can achieve the output that you envision. Regardless of subjects or genre, a lens with capabilities like this can do very well with a photographer who knows how to maximize it. As I said, I probably won’t be taking this out for street photography, but I’m sure that a (more) talented street photographer could create amazing, unique-looking images with the isolation and depth of field that this lens offers.

That aside, this lens can do great in any instance where 35mm lenses are commonly used, but with the added benefit of giving a different feel to the images. Environmental portraits can be done with considerable separation from the background without entirely losing the context. Studio portraits with meticulous lighting can come out great even with a plain and minimal backdrop. Lifestyle photography with a well-contrived background can be given a uniquely pleasant pop from the combination of the 35mm focal length and the f/1.2 opening, with the subject accurately in focus and perfectly separated from the blurred but comprehensible background.

Of course, because of the low-light performance and wide opening, the Viltrox 35mm f/1.2 Lab can do very well for events, concerts, and even wedding photography when used in the right context. Even as a fixed focal length lens, the combination of the perspective and the aperture range makes this a highly versatile piece of glass.
What I Liked
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Good overall sharpness
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Unique feel from the f/1.2 opening
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Premium feel and build
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Customizable screen
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Good value for money
What I Didn’t Like
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Large and heavy
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Some lapses in focusing on moving subjects







I would love to know which 20mm f1.2 lens you shoot Astro with that has no vignette? As far as I know nobody makes such a lens. Never heard of a 20 1.2. I imagine it weighs a ton.
No reply because the lens doesn't exist?
Sorry I meant to say f/1.8 there. Don't know why I missed that. I use a 20mm f/1.8 and 16mm f/1.8 from Sony
This may sound like an oversimplified analysis but it's too big.
“How much difference can half a stop of maximum aperture make? Let’s see if it is worth carrying a much bigger and heavier lens.”
One faces the same question when choosing between f1.8 and f1.4 primes. As an event shooter, I value the extra light gathering of f1.4, but I also want to keep size and weight down, as I’m often working long days on my feet. My Goldilocks lens in this focal length is Samyang’s AF 35mm f1.4 Prima FE, as it’s the smallest and lightest such lens available, and optical performance is more than adequate for my event work and even large prints of scenics.
OTOH, I’m not willing to accept the Viltrox’ greater bulk and weight for the additional 1/2 stop and reputed sharpness.
Is this an alternative reality where f/1.2 is a HALF stop faster than f/1.4 rather than the third of a stop faster that it actually is.
What is the fixation about the weight of lens and cameras!? are men now so weak in 2025 that a couple of 100 grams more here or there makes such a difference... definitely one of those points that makes me stop reading articles when thats in the first couple of paragraphs. I photograph. I try to use the best possible optical glass. Whether it weighs 500g or 1100g plays zero role in my choice of the lens. People or constantly go on about weight should just get an iphone 16 pro max or google pixel 9 pro XL and shoot with that.
Viltrox are doing some interesting prime lens. If I did not already have the 35/50/85mm 1.2 lens from Nikon I would definitely take a closer look at them once they are available for z-mount.
Really sick of the macho “Go work out at a gym” attitude of weekend warrior kiddies. I’m 60+, I work out at a gym, and as a full-time pro event shooter for 25 years, I’ve been lugging 20-40lbs of gear to location jobs all over NYC on mass transit and holding two or three cameras for 5-15 hours at a time over several days, which is probably what ruined my right shoulder. Using lightweight primes lets me bring more of them and keeps me out of physical therapy.
I am 60... have zero problem carrying kit and using kit.
Best piece of advice I received from a mentor 25 years ago: 1. wear the right shoes 2. always work with cameras that have a vertical grip 3. keep the camera glued to your face and 4. use a monopod as much as possible (if permitted).
Never had a camera induced injury... and that was shooting 12 hour days in studio for years.
Good for you. Studio work is nothing like event work. Why do you care what I use, and who appointed you to decide what I need?
Stop being so offensive. "Are men now so weak in 2025?" is not a "reply to the article", it's an obnoxious insult to everyone here - about whom you know absolutely nothing - who wants lighter lenses. I can't block you, but maybe the site admins can. If your idea of "manning up" is to be a rude jerk to strangers, then I'd rather be a wuss.
Run along to the admin and get me banned... if that makes you feel better lol.
Still does not change my view that I am here to photograph with the best kit I can afford and the weight of the camera and lens play zero role in my purchasing decisions.
Nobody wants to change your view about the weight of your gear.
But you seem committed to changing others through insults and offensive language, since deleted by the admins. Take the hint: don’t go around insulting strangers who don’t share your priorities.