Technologies

I Love This Hidden iPhone Camera Trick for Stunning Long-Exposure Photos

Your iPhone can already take beautiful, dreamy long-exposure photos. Here’s how to do it.

If you’ve ever seen artistic photos of waterfalls or rivers where the water is blurred to look like flowing ribbons, then you already know the beautiful effect of a long exposure photo. By allowing moving subjects in a scene to become blurred, it creates a great sense of motion, especially when those blurry subjects are contrasted against static elements such as rocks or trees. While this technique used to require a bulky DSLR, filters and a tripod to achieve shutter speeds over several seconds, you can now achieve much the same result using just your iPhone.

You don’t even need the latest iPhone 16 Pro or Pro Max to take advantage of this feature. It works on any iPhone launched after the iPhone 6.

Read more: Take Your Best-Ever Photos With Your iPhone

The technique uses Live Photos, a feature that turns a still image into a short animation by recording a few seconds of video when you fire the shutter. By analyzing which objects are moving, the iPhone captures the movement and blurs it. It’s also able to recognize what isn’t moving (a rock or a wall, for example) and attempts to keep those objects sharp and in focus. This lets you capture long-exposure images in even bright midday sun without using a tripod or filter. Take that, DSLRs.

Here’s how you can do it.

Know what makes a good long-exposure shot

Not everything works as a long-exposure image. A close-up of a flower blowing in the breeze will just become a blurry mess, while a picture of a static car will remain, well, static.

What you need is a scene where there are both static and moving elements. Waterfalls are common subjects, as the rushing water will be blurred while the surrounding rocks will remain solid. Any body of water, really, would be a good subject to experiment with.

You can also try busy city streets. The long-exposure effect keeps the buildings and roads sharp and fixed in the image, but the people walking all around will be blurred into ghostly figures, which looks atmospheric and dramatic.

Turn on Live Photos

Getting a long-exposure image requires the movement that’s recorded in a Live Photo, so it’s critical that that mode is activated when shooting. It’s located in the top right of the screen in the camera (when held in portrait orientation) or the top left (in landscape orientation). You’ll see an icon of two circles surrounded by a third dotted circle. If there’s no line through it, then Live Photos is activated. If there’s a line through it, tap the icon and you’ll see the message «Live» appear onscreen in a little yellow box.

Keep steady

Although the iPhone doesn’t require a tripod to get a good long-exposure image, you’ll get the best results if you keep the phone as steady as possible while it’s taking the Live image. I suggest resting the phone against a wall or some other fixed surface while shooting. If you have to hold the phone in your hand, I find that tucking my elbows in toward my body and holding my breath helps decrease motion blur while taking the shot.

It’s a good idea to take multiple shots too, hammering the shutter button while you hold the position. This way you’ll increase your chances of capturing at least one image that’s stable enough to produce an attractive long exposure.

Create the long exposure

Once you’ve captured your Live image, it’s time to transform it into the actual long exposure. Start by opening your image in the gallery app. In the top left you’ll see a small icon saying Live with a small downward-pointing arrow next to it. Tap the arrow and you’ll have the option to turn the image into a looping GIF, a bouncing GIF that plays forwards then backwards or, down at the bottom, a long exposure.

It’ll take a second or two, but you’ll quickly see how any motion in your shot has been blurred into the dreamy effect you’re after. You can then zoom in to check that it’s still nice and sharp. Feel free to apply the same effect to other photos you took of the same scene, just in case they worked out better.

If you happen to still be on iOS 14 or older, open the image you’ve settled on in your gallery and swipe up. This will bring up a panel called Effects where you can loop the motion in the video into GIFs. Swipe to the end of the effects panel though and you’ll see one called Long Exposure. Tap it. But you really should update your phone to a more recent version.

Make long-exposure photos from existing Live images

Have a look through your library to see if you already have other images that would work for long-exposure photos. The great thing about using the iPhone’s long-exposure tool is that you don’t need to use it while you’re shooting. You can go back and apply it to any Live image you’ve taken up until now.

Perhaps you visited Niagara Falls in New York or Havasu Falls in Arizona a few years ago and you happened to have had Live Photos activated when taking your shots. You can swipe up and activate long exposure on any of those shots. You can even go into your Live Photos album in your gallery to see all the shots you’ve got on your phone that can be transformed into long exposures. My advice? Put a good podcast on, settle into a comfy chair and see what dreamy shots you can dig out of your library.

I Took 600+ Photos With the iPhone 15 Pro and Pro Max. Look at My Favorites

+31 More

See all photos

Technologies

Kohler Wants to Put a Tiny Camera in Your Toilet and Analyze the Contents

The company’s new Dekoda toilet accessory is like a little bathroom detective.

Some smart litter boxes can monitor our pets’ habits and health, so having a camera in our human toilet bowls seems inevitable. That’s just what kitchen and bathroom fixture company Kohler has done for its new health and wellness brand, Kohler Health.

The $599 Dekoda clamps over the rim like a toilet bowl cleaner, pointing an optical sensor at your excretions and secretions. It then analyzes the images to detect any blood and reviews your gut health and hydration status. Depending on the plan you choose, the subscription fee is between $70 and $156 per year.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

At toilet time, you sign in via a fingerprint sensor so that the device knows who’s using the facilities. (Please wash your hands before signing out or tracking your progress.) Then, check in with the app for the day’s analysis and trends over time.

Wait until you’re off the pot, though, before you start doomscrolling your health. The device has a removable, rechargeable battery and uses a USB connection.

Kohler says it secures your data via the aforementioned fingerprint scanner and end-to-end encryption, and notes that the camera uses «discreet optics,» looking only at the results, not your body parts.

«Dekoda’s sensors see down into your toilet and nowhere else,» the company says.

Kohler warns that the technology doesn’t work very well with dark toilet colors, which makes sense. I’m sure there could be an upsell model with a light on it. Maybe the company could add an olfactory sensor, since smell reveals a lot about your gut health too. It could track «session» length or buildup under the rim to alert whoever has responsibility to clean it.

Kohler must have been straining to find appropriate lifestyle photos to include with the publicity materials. Many of the images are hilarious, featuring fit-looking men and women drinking water and staring off into space contemplatively — probably thinking about gas.

Technologies

Who’s Up to Fight Mega-Corporations in the Outer Worlds 2 on Xbox Game Pass?

Save the universe by fighting one CEO at a time in The Outer Worlds 2, plus play other great games coming to Xbox Game Pass in October.

Space is the final frontier, and it’s packed with some devious mega-corporations who are out to make a buck in The Outer Worlds 2. Xbox Game Pass subscribers can fight them in the highly anticipated sequel starting on Oct. 29.

Xbox Game Pass offers hundreds of games you can play on your Xbox Series X, Xbox Series S, Xbox One, Amazon Fire TV, smart TV and PC or mobile device, with prices starting at $10 a month. While all Game Pass tiers offer you a library of games, Game Pass Ultimate ($30 a month) gives you access to the most games, as well as Day 1 games, like Hollow Knight: Silksong, added monthly.

Here are all the games subscribers can play on Game Pass soon. You can also check out other games the company added to the service in October, including Ninja Gaiden 4.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

PowerWash Simulator 2

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 23.

If you’ve ever spent hours watching people on YouTube clean dirty rugs, cars and other grimy objects, you should check out PowerWash Simulator 2. As the name suggests, this sequel is all about blasting away dirt and filth from pools, homes and other objects around town. You have a furry kitty companion, and yes, you can pet them when you’ve finished cleaning.

Bounty Star

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 23.

The American Southwest has devolved into a lawless, post-apocalyptic desert called the Red Expanse in this game. You’re out to clean the place up in this game by taking down major bounties issued by the government, and the best way to do that is by piloting and customizing a giant mech, of course. When you want to nurse your wounds, head back to your run-down garage to rest, grow and cook food and raise animals. It’s like a cozy Armored Core game.

Super Fantasy Kingdom (game preview)

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 24.

After returning from a hunting trip, you find your 8-bit kingdom wrecked in this game. You must rebuild your domain in this roguelite, city builder. But as night falls, hordes of monsters emerge to tear everything back down. Build, mine, cook and grow your home, and prepare to defend it from all dangers.

Halls of Torment

Game Pass Ultimate, Game Pass Premium and PC Game Pass subscribers can start playing on Oct. 28.

Get ready to descend into the deadly Halls of Torment in this retro, horde survival game. You can choose between 11 playable characters, each with their own playstyle, and equip various items and abilities to survive waves of enemies. This game is like Vampire Survivors, so if you like that game give this one a shot.

The Outer Worlds 2

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 29.

Clear your calendar for this sequel to the award-winning sci-fi adventure, The Outer Worlds. This time, you’re an Earth Directorate agent investigating the cause of devastating rifts that could destroy humanity. You have a new ship, new crew, new enemies and mega-corporation goons standing between you and the answers.

1000xResist

Game Pass Ultimate, Game Pass Premium and PC Game Pass subscribers can start playing on Nov. 4.

One thousand years in the future, humanity is hanging on by a thread after a disease spread by alien occupation forces people to live underground in this sci-fi adventure game. You play as Watcher, and you fulfill your duties well, until one day you make a shocking discovery. This game won a Peabody Award in 2024, and it was nominated for the Nebula Award for Best Game Writing that same year, so get ready for a story like no other.

Football Manager 26

Game Pass Ultimate and PC Game Pass subscribers can start playing on Oct. 29.

Get ready for a more immersive matchday experience in the latest installment of the Football Manager franchise. You can build a star-studded squad with new transfer tools, and this entry features official Premier League licenses and women’s football for the first time in the series’ history.

Game Pass subscribers can play the standard or Console edition of this game.

Games leaving Game Pass on Oct. 31

While Microsoft is adding those games to Game Pass, it’s also removing three others from the service on Oct. 31. So you still have some time to finish your campaign and any side quests before you have to buy these games separately.

Jusant
Metal Slug Tactics
Return to Monkey Island

For more on Xbox, discover other games available on Game Pass now and check out our hands-on review of the gaming service. You can also learn about recent changes to the Game Pass service.

Technologies

Does Charging Your Phone Overnight Damage the Battery? We Asked the Experts

Modern smartphones are protected against overcharging, but heat and use habits can still degrade your battery over time.

Plugging your phone in before you head to bed might seem like second nature. That way by the time your alarms go off in the morning, your phone has a full charge and is ready to help you conquer your day. However, over time, your battery will start to degrade. So is keeping your phone plugged in overnight doing damage to the battery?

The short answer is no. Keeping your phone plugged in all the time won’t ruin your battery. Modern smartphones are built with smart charging systems that cut off or taper power once they’re full, preventing the kind of «overcharging damage» that was common in older devices. So if you’re leaving your iPhone or Android on the charger overnight, you can relax.

That said, «won’t ruin your battery» doesn’t mean it has no effect. Batteries naturally degrade with age and use, and how you charge plays a role in how fast that happens. Keeping a phone perpetually at 100% can add extra stress on the battery, especially when paired with heat, which is the real enemy of longevity.

Understanding when this matters (and when it doesn’t) can help you make small changes to extend your phone’s lifespan.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

The science behind battery wear

Battery health isn’t just about how many times you charge your phone. It’s about how it manages voltage, temperature and maintenance. Lithium-ion batteries age fastest when they’re exposed to extreme levels: 0% and 100%.

Keeping them near full charge for long stretches puts additional voltage stress on the cathode and electrolyte. That’s why many devices use «trickle charging» or temporarily pause at 100%, topping up only when needed.

Still, the biggest threat isn’t overcharging — it’s heat. When your phone is plugged in and running demanding apps, it produces heat that accelerates chemical wear inside the battery. If you’re gaming, streaming or charging on a hot day, that extra warmth does far more harm than leaving the cable plugged in overnight.

Apple’s take

Apple’s battery guide describes lithium-ion batteries as «consumable components» that naturally lose capacity over time. To slow that decline, iPhones use Optimized Battery Charging, which learns your daily routine and pauses charging at about 80% until just before you typically unplug, reducing time spent at high voltage.

Apple also advises keeping devices between 0 to 35 degrees Celsius (32 to 95 degrees Fahrenheit) and removing certain cases while charging to improve heat dissipation. You can read more on Apple’s official battery support page.

What Samsung (and other Android makers) do

Samsung offers a similar feature called Battery Protect, found in One UI’s battery and device care settings. When enabled, it caps charging at 85%, which helps reduce stress during long charging sessions.

Other Android makers like Google, OnePlus and Xiaomi include comparable options — often called Adaptive Charging, Optimized Charging or Battery Care — that dynamically slow power delivery or limit charge based on your habits. These systems make it safe to leave your phone plugged in for extended periods without fear of overcharging.

When constant charging can hurt

Even with these safeguards, some conditions can accelerate battery wear. As mentioned before, the most common culprit is high temperature. Even for a short period of time, leaving your phone charging in direct sunlight, in a car or under a pillow can push temperatures into unsafe zones.

Heavy use while charging, like gaming or 4K video editing, can also cause temperature spikes that degrade the battery faster. And cheap, uncertified cables or adapters may deliver unstable current that stresses cells. If your battery is already several years old, it’s naturally more sensitive to this kind of strain.

How to charge smarter

You don’t need to overhaul your habits but a few tweaks can help your battery age gracefully.

Start by turning on your phone’s built-in optimization tools: Optimized Battery Charging on iPhones, Battery Protect on Samsung devices and Adaptive Charging on Google Pixels. These systems learn your routine and adjust charging speed so your phone isn’t sitting at 100% all night.

Keep your phone cool while charging. According to Apple, phone batteries perform best between 62 and 72 degrees Fahrenheit (16 to 22 degrees Celsius). If your phone feels hot, remove its case or move it to a better-ventilated or shaded spot. Avoid tossing it under a pillow or too close to other electronics, like your laptop, and skip wireless chargers that trap heat overnight.

Use quality chargers and cables from your phone’s manufacturer or trusted brands. Those cheap «fast-charge» kits you find online often deliver inconsistent current, which can cause long-term issues.

Finally, don’t obsess over topping off. It’s perfectly fine to plug in your phone during the day for short bursts. Lithium-ion batteries actually prefer frequent, shallow charges rather than deep, full cycles. You don’t need to keep it between 20% and 80% all the time, but just avoid extremes when possible.

The bottom line

Keeping your phone plugged in overnight or on your desk all day won’t destroy its battery. That’s a leftover myth from a different era of tech. Modern phones are smart enough to protect themselves, and features like Optimized Battery Charging or Battery Protect do most of the heavy lifting for you.

Still, no battery lasts forever. The best way to slow the inevitable is to manage heat, use quality chargers and let your phone’s software do its job. Think of it less as «babying» your battery and more as charging with intention. A few mindful habits today can keep your phone running strong for years.