When you’re exercising outdoors, you’re probably losing a liter or more of water an hour, mainly through sweating. Replacing that is easy if you have piped water handy. If not, you’ll be relying on what you carry – and water is heavy. Or you’ll be risking disease by drinking from sources you’ve found.

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Category: Gear, Outdoors

Tags: Survival, Water, Water Bottle, Filters, Filter, Purification, Camping, Backpacking, Hiking, Outdoors and Camping, Kickstarter, Hydration

California's intriguingly named Puckipuppy has unleashed a heavy hauling electric trike called the Rottweiler that boasts a 960-watt peak motor, torque sensor, 55-mile battery and full suspension.

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Category: Urban Transport, Transport

Tags: ebikes, Pedal-assisted, Trike, Tricycle, cargo bike

The RAAF's MQ-28 Ghost Bat drone has completed public flight trials to demonstrate its operational capabilities. Performed for select journalists, the flight of the Boeing Loyal Wingman took place at RAAF Base Tindal in the Northern Territory.

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Category: Military, Technology

Tags: RAAF, Boeing, Australia, drones

This month's photo challenge celebrates the camera that's always with you: the smartphone.

Photo: Dale Baskin

Our September Editors' photo challenge theme is "Pixels in Your Pocket."

This month, we’re celebrating the camera that’s always with you: the smartphone. As we all know, sometimes the best camera is the one you have with you. Wow us with your best smartphone* photos to show us how small sensors can tell big stories, anywhere, anytime.

Photos can be submitted between Sunday, September 14, and Saturday, September 20 (GMT). The challenge is open to photos captured at any time.

Important: Images MUST include a title and a caption of at least 25 words to be eligible. We need to be able to share the story behind your photo. We will consider both photos and captions when selecting our winners, so make sure to tell us that story!

Visit the challenge page to enter your photo in this month's Editors' photo challenge.

Click here to enter your photo in our smartphone photo challenge.

*We'll also accept photos taken with tablets that share the same cameras and computational tools as smartphones.

Home projector pioneer XGIMI is getting down to business with its first model designed specifically for event spaces, professional installations and enterprise environments. With the dual-laser 4K Titan, the company is aiming to challenge the commercial status quo.

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Category: Technology

Tags: XGIMI, Projectors, Laser, Business, 4K UHD, IFA 2025

When you use DPReview links to buy products, the site may earn a commission. OM System OM-1 II | OM System 50-200mm F2.8 IS Pro w/ MC-20 2x teleconverter | 400mm | F5.6 | 1/400 sec | ISO 200
Photo: Mitchell Clark

This week, OM System announced its long-awaited telephoto zoom, the 50-200mm F2.8 IS Pro. It's designed to give photographers a fair amount of reach with its standard 100-400mm equiv. focal range, and even more if they pair it with a teleconverter, which it's compatible with.

We were able to test it out both with and without a 2x teleconverter; the images taken with it are labeled as such in the gallery below.

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See the sample gallery

Please do not reproduce any of these images on a website or any newsletter/magazine without prior permission (see our copyright page). We make the originals available for private users to download to their own machines for personal examination or printing; we do so in good faith, so please don't abuse it.

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The IAA Mobility show in Munich is in full swing, and boy, does it have some tasty treats for auto nerds. And from all that’s on display, a certain mini concept has managed to gather major eyeballs. Of course, I’m talking about the MINI x Deus Ex Machina concept.

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Category: Automotive, Transport

Tags: MINI, Cooper, Electric Vehicles, Concept Vehicle, Concept Cars, Surf, Surfing, iaa mobility 2025

Strong bones need more than workouts; they need less sitting. A sweeping review shows that across all ages, even light daily activity protects bone health, while too much sedentary time quietly raises the risk of fractures.

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Category: Wellness and Healthy Living, Body and Mind

Tags: Bones, Physical activity, Sedentary, Exercise, Fractures

Healthy eating doesn’t just shrink your waistline; it can ease chronic pain. A new study shows that better diet quality reduced pain severity and improved quality of life, independent of weight loss.

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Category: Wellness and Healthy Living, Body and Mind

Tags: Diet, Chronic pain, Weight Loss, University of South Australia

Your morning coffee might do more than wake you up – it could weaken donated blood. A large new study shows caffeine lowers red blood cell quality, making transfusions less effective, especially in patients who need them most.

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Category: Wellness and Healthy Living, Body and Mind

Tags: Red blood cells, Blood, Caffeine, University of Colorado

A year after making its world premiere, the ruggedest camper in Dethleffs' fleet gains some extra space up high, sleeping an entire family anywhere from the local camping resort to the most nonlocal of inhospitable wild lands. The pop-up Globebus Performance 4x4 is just a concept camper for now, but it looks smartly polished enough to make a production debut any time.

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Category: RVs and Motorhomes, Adventure Vehicles, Outdoors

Tags: Motorhome, Motorhomes, RV, Off-road, Off-grid, dusseldorf-caravan-salon-2025, Camping, Dethleffs, Outdoors and Camping

Researchers have uncovered a gut-diet link to postpartum depression, finding that eating a diet of soy, fermented foods, and seaweed may nurture beneficial gut bacteria and protect mothers’ mental health.

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Category: Body and Mind

Tags: Gut Bacteria, Microbiome, Gut-brain axis, Postpartum depression, Kyoto University

Over four years since it landed on Mars, NASA's Perseverance Rover might have made serious headway in its mission to find signs of ancient microbial life on the planet.

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Category: Space, Science

Tags: Mars, NASA, perseverance, JPL

The escalating drone arms race has taken a new turn with Saab's introduction of its Project Nimbrix Counter-Unmanned Aerial System (C-UAS) missile – a low-cost fire-and-forget anti-small-drone and drone swarm weapon with a modest footprint.

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Category: Military, Technology

Tags: Saab, UAV, Missile Defense

When you use DPReview links to buy products, the site may earn a commission. Sony a7CR | Sigma 35mm F1.2 DG II Art | F1.2 | 1/125 sec | ISO 100
Photo: Mitchell Clark

Earlier this week, Sigma announced a second-generation version of its full-frame 35mm F1.2 lens, the 35mm F1.2 DG II Art. It promised not only improved optical quality and autofocus performance, but a much smaller and lighter package overall.

We had the chance to use the lens in a variety of conditions to get an idea of how it performs, and you can see our samples in the gallery below.

See the sample gallery

Buy now:

Buy at AdoramaBuy at B&H Photo

Please do not reproduce any of these images on a website or any newsletter/magazine without prior permission (see our copyright page). We make the originals available for private users to download to their own machines for personal examination or printing; we do so in good faith, so please don't abuse it.

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When scientists study obesity and weight-loss treatment, it's most often about genetics, lack of physical activity and poor eating habits. However, new findings show that stress, hardship, isolation and social inequality create the biological environment that underpins the condition that now affects around 40% of US adults.

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Category: Obesity, Illnesses and conditions, Body and Mind

Tags: UCLA, Obesity, Gut Bacteria, Gut-brain axis, Chronic illness, Nutrition, Weight Loss, Exercise

Signs of immune system aging appear years before rheumatoid arthritis takes hold, offering new hope for early diagnosis and treatments that could slow or stop the disease before it starts, according to new research.

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Category: Illnesses and conditions, Body and Mind

Tags: Rheumatoid arthritis, The Immune System, Aging, T-cells, Biomarkers, University of Birmingham

Aprilia has gone all out with its new RSV4 X-GP, a beast of a track-only superbike that arguably makes more power than anything else you can buy outside of Kawasaki's supercharged Ninja lineup this year.

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Category: Motorcycles, Transport

Tags: Aprilia, Superbike, Racing

Full self-driving. Tesla’s astonishingly wild promise seems to have gone off the rails. It’s been nearly a decade since Tesla announced that all of its production vehicles would be capable of autonomous driving, with CEO Elon Musk repeatedly stating that it would happen by the end of each year since 2018.

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Category: Automotive, Transport

Tags: Tesla, Tesla Motors, Autonomous Vehicles, Self-Driving, Electric Vehicles, Autonomous Vehicles, Elon Musk

Earlier in the year we saw Unihertz sub-brand 8849 sharpen up the visuals for the built-in projector of its Tank 4 Pro rugged smartphone. Now Blackview is doing the same to its Active 12 Pro rugged tablet, but this time we're looking at Full HD image throws.

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Category: Outdoors

Tags: Rugged, Tablet, Projectors, HD