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To test how cameras perform in low light, we analyzed shots taken at iso 800 and 1600 (when available). We looked at two key metrics: quantity of image noise and effect of noise reduction. Noise is easy to quantify, but noise reduction is trickier. to nail it down, we use a custom spilled coins chart that, well. Looks like a bunch of multicolored coins scattered on a table.

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When cameras apply noise reduction to images of the spilled coins chart, it lowers the acutance (or perceived sharpness) of the image, which is something we can quantify.

you can see the effect in the first set of samples above, which shows full-size crops from each smartphone taken at iso 800 (blackberry curve latest models
the nikon d610 full-frame dslr as a control sample).

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The effects of noise reduction are even more obvious at iso 1600 (below).

the best overall performer was the panasonic cm1, which produced both low noise and minimal noise reduction at iso 800 and 1600. In the non-cm1 division, the samsung galaxy s6 edge won blackberry curve latest models thanks to its intelligent noise reduction algorithm. The shots display clear signs of noise reduction when viewed at 100%, but details hold up better than in shots from other phones. The lg g4 also does well, mostly because it has a light touch, leaving most of the noise (and thus fine detail) alone.

the next best result came from the iphone 6, which takes full advantage of its 8-megapixel camera and larger individual pixels. But the advantage is something of an illusion.

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When we downsample all the iso 800 shots to match the iphones 8 megapixels (below), apples advantage quickly disappears.

the beauty of smartphones is that, in many cases, you can add the features you want by simply downloading an app. Whether youre running android or ios, you have countless options, and there are new apps to try every day. But even taking this into account, not all phones (or mobile oses) are equal. for example, android 5. 0 lollipop supports raw capture blackberry curve latest models
the updated camera2 api, but not all phones have adopted it. The nexus 6 has, as has the lg g4. The lg puts its raw capability to excellent use in the brands default camera app, which is also the only app that can take advantage of the phones laser-assisted autofocus.

the sony xperia z3 compact and samsung galaxy s6 edge also run lollipop, but neither offers raw capture—even in apps that would otherwise support it. This is a conscious choice by the manufacturers, and a puzzling one. Sure, most people are never going to shoot raw, but most people arent going to insert augmented reality elves into their shots either, and that sure didnt stop sony. the iphone 6s stock camera app trades fine-grained manual control for a simple, intuitive user interface.

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Still, apple allows third-party apps more control over things like iso sensitivity, letting intermediate and advanced photographers find an app that suits their needs.

the panasonic lumix cm1 offers more control than any other phone in our test group, but it has to work around androids limitations to support its custom hardware.

The result is a hit-or-miss experience blackberry curve latest models
third-party apps, but the workarounds also have their upsides. Most notably, the cm1 properly indexes raw files. So when you hit upload images in dropbox, the . dngs will appear like any other image.

With other android phones—even those that claim to support raw—these files are hidden and you can only be found by manually digging through all files. as important as still image quality is to any camera, we cant overlook the importance of video.

Sometimes a video is the best (and easiest) way to capture a fleeting moment, and blackberry curve latest models
4k uhd video on the rise, theres bound to be more attention paid to smartphones cameras that can keep pace blackberry curve latest models
the times. in most ways, the qualities that make a camera good at shooting still photos carry over to video, as well. There are other factors at play, of course, but accurate color, reliable white balance, and wide dynamic range pay dividends in both stills and video. Its no surprise, blackberry curve latest models, that our top smartphones for video look a lot like our top phones for stills.

just as you want crisp, clear results when shooting photos, you want the highest resolution possible when capturing video.

The highest resolution you can get today is 4k uhd. Remember how lifelike 1080p hd looked when you first upgraded from a standard-def tv set? A good 4k recording will give you the same eye-popping effect, offering four times as many pixels as 1080p. most of our test phones are capable of recording usable 4k uhd video, blackberry curve latest models
only the panasonic cm1 and the iphone 6 limited to 1080p.

(The cm1 records 4k, but its only at 15fps. ) the 4k phones performed well in our bright-light video sharpness test, all recording around twice as much detail (above) as the 1080p-limited phones like the cm1 (below).

this result matches up precisely blackberry curve latest models
what weve seen from all of our reviewed cameras in the past couple years.

With four times as many pixels per frame, 4k uhd video simply resolves more detail than even the best hd cameras ever could. Theres no arguing blackberry curve latest models
the math. the gulf between 4k and 1080p persists even in low light, but we also see greater differentiation between our 4k combatants. In the low-light test we light our chart at an even 60 lux—abblackberry curve latest models what youd get in a dim restaurant or bar. While detail tends to hold steady in these conditions, we see more compression artifacts, noise, and other defects as the cameras are forced to compensate for the lack of light.

the samsung galaxy s6 edge did very well here, preserving nearly the same amount of fine detail at 60 lux as it does in bright light, while keeping compression artifacts to a minimum. The lg g4 and nexus 6 also did well, though we preferred the look of the g4s blackberry curve latest modelsput. The worst of the 4k cameras was the htc one m9, which was plagued by false colors, moiré, and nasty compression artifacts in all lighting conditions.

of the 1080p group, the cm1 performed best, while the iphone also suffered from compression artifacts, noise, and false color. The video is usable, but you wont want to show it off. The gulf in resolution remains as clear in low light as it was in bright light.

smartphone cameras struggle more blackberry curve latest models
motion blur than any other kind of camera.

Since they dont weigh much and dont have grips, its difficult to keep them steady while shooting video. Thats why many cameras and smartphones include image stabilization, which corrects for hand shake in real time.