Back in 1988, Canon introduced the EF 200mm f/1.8L USM – the world’s fastest 200mm telephoto lens. Made for Canon’s EF-mount DSLR cameras, it was discontinued in 2004. Nothing since then has come close to its unique combination of reach and speed. That might be about to change: according to online rumors, Sigma is working on a spiritual successor for the mirrorless era.
L-rumors, a source for L-mount camera system news, recently ran a story claiming that Sigma is developing a world-first 200mm f/1.8 L-mount lens for Sony E and L-mount (Leica, Sigma and Panasonic) full-frame cameras. It points out that the optical design for such a lens was patented by Sigma back in 2020. Sony Alpha Rumors carried the same story.
Neither site provides any concrete information on performance, pricing or release date, speculating only that the lens will form part of Sigma’s Sports series. Whatever the specifics, the lens – if real – would be unique among modern mirrorless glass.
No other optic offers the same pairing of prime telephoto reach and a fast f/1.8 maximum aperture. It’s a recipe that promises sharp stills with beautiful background blur, giving it appeal for sports, portrait and landscape photographers alike.
Sigma's lens department regularly innovates – its 28-45mm lens (above) was the first F1.8 zoom lens for full-frame. (Image credit: Sigma) Who would a 200mm f/1.8 lens be good for?A 200mm telephoto prime might sound like a niche lens, but it’s one that has a lot to offer for sports and wildlife photographers. It gives a useful degree of magnification, bringing distant subjects significantly closer, but not so close that you can’t readily pan to follow the action from the sidelines.
It’s also a flattering focal length for portrait photography, creating an attractive compression effect where the background appears larger. That same effect gives it appeal for landscape photographers who want to create compositions which contrast specific details of foreground and background.
Prime optics famously offer faster maximum apertures than zoom lenses. This allows photographers to shoot at faster shutter speeds in low-light conditions. It also comes with the promise of soft bokeh and background blur. Both of those benefits will be maximized at an aperture of f/1.8.
As above, rumors suggest that the Sigma 200mm f/1.8 will be part of Sigma’s Sports line. That makes a lot of sense: at that aperture, sports photographers would be able to work at faster shutter speeds to freeze action indoors or under floodlights. Similarly, both wildlife and landscape photographers would be able to make use of all available light, even when shooting in dim settings.
Portrait photographers would naturally benefit, too. The lens promises to isolate subjects sharply against wonderfully defocused backgrounds. The Sigma 200mm f/1.8 would deliver the shallowest depth of field possible at that focal length for a modern mirrorless camera. That makes it a pretty compelling, if inevitably pricey and physically weighty, proposition.
You might also likeI’ve tested my fair share of AR smart glasses in the past few years, and the Xreal One glasses might be the best smart glasses I’ve tried.
Xreal’s expertise shines through with these specs, which not only boast an impressive full-HD 120Hz OLED image with vivid colors, impressive contrast, and a 600-nit brightness, but also solid audio courtesy of Bose.
Headphones will still deliver better audio, but these smart glasses don’t feel incomplete without a pair of cans – something I can’t say of their rivals.
Though if you’re picking up the Xreal One you’ll probably also want to grab Xreal’s Beam Pro – a smartphone-like companion device that adds features like easy spatial photo capture without an iPhone 15 Pro, and two USB-C ports.
The Beam Pro starts at $199 / £189 for a model with 128GB of storage and 6GB of RAM, and while it’s not technically required it compliments the Xreal One so well that it feels like you’re missing out without it.
You can also connect the glasses to a suite of compatible USB-C devices instead like most smartphones, laptops, and game consoles (though for the latter you might need an add-on HDMI adapter). It’s perfect for watching your favorite show or playing a game on a giant virtual display, or for working privately on sensitive work documents in the office, or while you’re traveling, as only you can see your screen.
At $499 / £449 the Xreal One are approaching the pricier end of the scale, but with solid specs these glasses justify their cos, and are worth picking up if you want premium performance.
Xreal One: Price and availability (Image credit: Xreal)The Xreal One is available to buy in the UK and US from Xreal.com for $499 / £449.
This puts it at the mid-range price for AR glasses – it’s more expensive than older and more budget-friendly options like the Xreal Air 2 and RayNeo Air 3S, but less expensive than high-end standalone AR glasses like the Xreal Air 2 Ultra, and the upgraded (and soon to release) Xreal One Pro.
The Xreal One doesn’t reinvent the wheel when it comes to Xreal’s AR glasses design. That is, at a glance it looks like a pair of sunglasses – albeit with a thick frame and large displays situated behind the lenses.
Just as on other wired AR specs the USB-C cable feeds into a port at the end of the left arm, and can be connected to a suite of USB-C devices that support DisplayPort – or to other devices with the right cables and accessories like an HDMI-to-USB-C cable.
Meanwhile the right arm features all of the buttons. On the bottom of the arm you’ll find a Red button which when pressed switches between Anchor mode and Follow mode (which anchors the screen in space or has it follow you as you move your head), and a brightness bar – you make the screen brighter, or change the electrochromic dimming intensity between three levels.
On top you’ll find a small black ‘Quick button’ for toggling between your display and dimming settings and transparency mode – which takes away your screen and resets the lenses to clear, so you can see what’s going on around you.
There are no volume controls on the specs, so you’ll need to rely on your device’s audio controls.
(Image credit: Future)During my tests I only really used them on max brightness with the dimming turned up to full, as this created the best viewing conditions, though the transparency mode toggle came in handy a few times, and when using the Xreal Ones in a dark environment it was handy to turn the brightness down a tad so there wasn’t as much glare.
To find the best fit for you there are three arm angles so you can tilt the screen, and three nose pad options, so you can have the glasses sit correctly on your face. In my testing, after adjusting the specs I was able to comfortably wear the glasses, which weigh just 84g, for hours at a time with no trouble.
The Xreal One glasses also come with a cleaning cloth and a hard carry case so you can keep them clean and easily transport them and their cable.
Instead of beginning with the visual quality of the Xreal One (which is great by the way – more on that in a moment) I want to start this section by praising their audio. Normally, smart glasses audio is bordering on bad – the small open-air speakers produce a hollow sound that's passable for watching films, but a pair of headphones often feel like a necessity rather than an optional add-on. Thanks to Bose engineered sound that’s not the case with the Xreal One specs – the audio performance is one of their best features.
They’re not perfect for music, but compared to the Xreal Air 2 there's a stark improvement. This makes the immersive movie and TV show watching experience significantly better without requiring any headphones, meaning the specs feel like a more complete package out of the box. What’s more they seem to be less leaky than on previous models – audio can still be heard by people sitting close by, but it’s a lot better.
Now for the visuals. The Xreal One specs boast a 1080p image produced by Sony Micro-OLED displays that boast a peak 600nits perceived brightness, a 120Hz refresh rate, and a 50-degree field of view.
The end result is an image that looks really good. Yes it’s only Full HD quality but the colors are beautiful, and the excellent contrast is super-handy when you're trying to follow the action in dark scenes (though you’ll need the brightness set to max).
I’ve been using the smart specs to stream Daredevil: Born Again (it’s superb by the way), Invincible season 3 (also great), and play games using my PC and PS5 by connecting them to the specs via HDMI adapters.
The high refresh rate and low lag help to ensure that games look smooth, and it was a blast to watch the action unfold on a giant 147-inch virtual screen.
(Image credit: Future)While using them with my PC I also gave the specs a whirl for working. Having your documents laid out on a larger monitor was certainly handy, but one big advantage I found was these specs are excellent for working privately, especially while traveling. I could be writing up an embargoed story on a train or flight, and because only I can see my virtual laptop screen I don’t have to worry about people looking over my shoulder and seeing any information they aren’t meant to.
I just wish the Nebula app for Mac wasn’t still in beta, and that the also in-beta Windows app was easier to find (I had to go through Reddit rather than Xreal’s own website).
While you can use the Xreal One glasses with a plethora of USB-C devices, by far your best bet is the Xreal Beam Pro. It’s a smartphone-like add-on that's built by Xreal to be the perfect companion to its glasses, and the company has thoroughly succeeded in that regard. If your budget can stretch to purchasing the Xreal One and a Beam pro in a bundle, do it.
You want top-end AR entertainment
These are the best AR glasses of this kind we’ve tested, thanks to their impressive sound and image quality.
You want privacy
These specs allow you and only you to see what’s on your phone or laptop screen with the right display settings, which makes them ideal for things like working on sensitive documents on your commute.
You don’t have headphones
These smart specs feature some of the best audio I’ve heard during my testing of different brands. Headphones are still better than the glasses audio-wise, but they don’t feel like a must-have with the Xreal One, as they do with other smart glasses.
You aren’t getting the Xreal Beam Pro
Xreal’s glasses shine when paired with its Beam Pro add-on. You don’t technically need it, but it makes the specs feel like a complete package, which makes it feel more like a necessity.
You don’t have a big budget
The Xreal One are great but also pricey. There are solid and cheaper alternatives out there that you could look at instead.
You want 4K
No smart glasses yet boast 4K, so if that’s a resolution milestone you’re waiting for you’ll need to wait a little longer.
Xreal Air 2
If you want to stick with Xreal, the Xreal Air 2 or its electrochromic dimming-enhanced Xreal Air 2 Pro are both solid options that cost a little less – though expect a slightly less good image and noticeable inferior audio.
Read our Xreal Air 2 reviewView Deal
Meta Quest 3
While not a direct competitor to Xreal’s glasses, the Quest 3 is an XR product that you should consider if you want to experience what VR and MR have to offer – it’s simply superb.
Read our Meta Quest 3 reviewView Deal
I spent a few weeks testing the Xreal One specs for different use cases – gaming, entertainment, and productivity. I mostly used them at home on my couch, in bed, or at my desk, but I also made sure to take them with me on a couple of flights I took, and also used them during my commute a few times to get a sense of their capabilities in different environments.
I hooked them up to my PC, PS5 and smartphone (a Samsung Galaxy Z Fold 6), but my main connected device of choice was the Xreal Beam Pro. It’s the ideal companion for Xreal’s AR smart glasses, and worth picking up if you’re buying the Xreal One.
Ajinomoto is a Japanese company best known for producing MSG, or monosodium glutamate - the ubiquitous flavor enhancer commonly used in food, especially in Asian cuisine.
As one of the world’s largest MSG manufacturers, the company is often closely associated with the ingredient - the name "Ajinomoto" actually translates to "essence of taste" in Japanese.
Right about now, you’re probably wondering why this is on TechRadar Pro, right? Well, it’s because Ajinomoto is set to massively expand its investment in the semiconductor sector.
Increasing ABF production by 50%A report from Nikkei Asia claims the Japanese food and biotech company plans to boost production of Ajinomoto Build-up Film (ABF), a key insulating material used in the packaging of advanced CPUs and GPUs, where it helps ensure thermal stability and electrical insulation.
First developed using the company’s expertise in amino acid chemistry (you can read the whole history here), ABF is now essential for high-performance semiconductor substrates and Ajinomoto holds over 95% market share in its category.
Nikkei Asia says Ajinomoto has already spent 25 billion yen over the past two years to expand production at its facilities in Gunma, northwest of Tokyo, and in Kawasaki, but it is now looking to increase ABF production capacity by 50%.
"We will invest the same amount or more by 2030 as demand increases," President Shigeo Nakamura, who took on the role in February 2025, said in an interview with Nikkei Asia.
"We are also exploring establishing new bases," he added, although this expansion is expected to remain within Japan.
Ajinomoto's ramping up of ABF isn’t a surprise, given that Nakamura previously worked in research and played a key role in the development of the company’s electronics materials division.
"We expect sales of electronics materials, mainly ABF, to grow at an annual rate of more than 10% through 2030," Nakamura told the news site.
"We will continue to meet needs by evolving ABF to a more highly functional form that supports high-performance semiconductors in the long term."
You might also likeBagayoko, an acclaimed guitarist and half of the Grammy-nominated blind duo Amadou & Mariam, died in his hometown of Bamako on Friday.
(Image credit: Michel Euler)
NPR member station photographers documented what they saw at the demonstrations against the Trump administration, from cuts and layoffs to federal departments, to mass deportations.
(Image credit: Joni Auden Land)
It's only been a few days since President Trump's 25% tariffs on foreign cars took effect. But the import surcharge has led to some immediate changes, including layoffs and pauses in car shipments.
(Image credit: Jae C. Hong)
Demonstrations took place across the country, uniting a myriad of criticisms of the Trump administration under one message: "Hands off."
(Image credit: Anna Moneymaker)
Microsoft followed at least one part of my wishlist for its Copilot event when it announced Copilot Vision will be embedded in Windows 11 and the mobile app.
Copilot Vision will let the AI actually see what’s on your screen and the world around you. Microsoft first toyed with the idea in Edge, where Copilot could peek at the browser and offer help. But now it’s going system-wide, across apps, websites, and even what your smartphone camera shows on your screen.
The idea is to offer a proactive AI assistant that can scan an Excel sheet, summarize a PDF, suggest how to adjust your settings, or identify the wild berry you're not sure is edible or poisonous.
The appeal is obvious, even when compared to tools with similar features like ChatGPT and Gemini. Those tools can be great on a desktop or laptop, but they don’t have the luxury of being built directly into your operating system.
Copilot has a home-field advantage on Windows 11. Vision leverages that advantage. It doesn’t have to wait for a prompt; it can see what you’re doing and offer context-relevant help.
Copilot Vision cautionMicrosoft clearly anticipates some trepidation over Copilot Vision's expansion based on how eager the company is to highlight the feature's privacy aspects. Microsoft says Copilot Vision only works when you grant access. Still, there’s no denying the privacy weirdness. The digital equivalent of someone looking over your shoulder sounds creepy out of context.
Of course, it's not like we haven't all been handing over swaths of data to the cloud to get slightly better movie recommendations or similar benefits. But I can understand why letting AI literally read your screen as you do the same might feel intimate in a disconcerting way.
Control and trust might make the difference in Copilot Vision's success. If Microsoft starts making Copilot Vision default-on or hides the permission settings in some deeply buried system menu, more people might turn away from Copilot entirely and turn to another option with the same abilities but with the user controlling it more.
I still think it will be a genuinely useful addition to Copilot, especially on the surprisingly well-designed Copilot mobile app. You'll want to keep track of what permissions you give and when Copilot Vision is active. I'd encourage trying it out, but keep your eyes open when the AI is doing the same.
You might also likeThe children's book author best known for her Oliver and Amanda Pig series has died at 87. Van Leeuwen wrote nearly 60 books, some of which sold millions of copies.
(Image credit: Ann Schweninger)
The video game industry is huge. Last year alone it generated an estimated $187 billion dollars in revenue.
But it's also facing a host of serious issues: massive layoffs, the advent of A.I., games that take years to be released, and a schism between big and small developers.
This week's Reporter's Notebook takes us inside this evolving industry with NPR's Vincent Acovino, who recently covered the annual Game Developer's Conference in San Francisco.
For sponsor-free episodes of Consider This, sign up for Consider This+ via Apple Podcasts or at plus.npr.org.
Email us at considerthis@npr.org.
Arm says its Neoverse platform is becoming the architecture of choice for the cloud, as the likes of AWS, Google Cloud, Microsoft Azure and others drive a broader shift away from x86 in the data center.
Mohamed Awad, SVP and GM of the Infrastructure Business at Arm, says power efficiency and scalability are redefining infrastructure at hyperscale. “Just over six years ago, we launched Arm Neoverse for the next-generation of cloud infrastructure, recognizing a world where delivering new levels of scalable performance on top of Arm’s flexible and power-efficient compute platform could enable a systemic shift in the capabilities and costs of the data center ecosystem,” he explained.
“Fast forward to today, the adoption of Neoverse has reached new heights: close to 50 percent of the compute shipped to top hyperscalers in 2025 will be Arm-based,” he added. Much of this momentum can, inevitably, be attributed to the rise of AI.
AI servers set to grow by 300 percentAI is reshaping cloud infrastructure, driving explosive growth in compute demand and forcing hyperscalers to prioritize power efficiency at massive scale. Data centers are being designed in gigawatts, not megawatts, making efficiency a requirement rather than a differentiator, something that has been central to Arm's architecture for decades.
That's not the only reason for the architecture's success of course.
"The Arm compute platform is additionally giving our partners the flexibility to create a new generation of customized, differentiated silicon solutions for AI. For example, Nvidia’s Grace Blackwell superchip for AI-based infrastructure combines Nvidia’s Blackwell GPU accelerated computing architecture with the Arm Neoverse-based Grace CPU, integrated with an extraordinarily high bandwidth, coherent mesh network – a system tailor-made to achieve unmatched performance for AI workloads," Awad says.
With ten of the world’s largest hyperscalers developing and deploying Arm-based chips, the future looks bright for the company - but that dynamic could shift if, as rumored, Arm decides to produce its own silicon.
Speculation on that front gained signifcant momentum after Arm’s Japanese owner, SoftBank, acquired Arm-based chipmaker Ampere for $6.5 billion, raising concerns that Arm could end up competing directly with its partners in the fast-growing data center market.
You might also likeAnother round of torrential rain and flash flooding was coming for parts of the South and Midwest. Areas are already waterlogged by days of severe storms that also spawned some deadly tornadoes.
(Image credit: Jon Cherry)