IPhone 7 Plus Vs. Pixel XL: Heavyweight Title Fight: Still Camera

By 03:02 Tue, 17 Aug 2021 Comments


Still camera

Both the iPhone 7 Plus and the Pixel XL have 12MP cameras, so they must be the same, right? Well, of course not.

For starters, the iPhone 7 Plus has two of those. A couple of 12MP sensors on the back, the primary-er 1/3" mated to a 28mm-equiv. f/1.8 lens with OIS, the other one - a smaller 1/3.6" imager behind a longer but dimmer 56mm-equiv. f/2.8 lens (no OIS).


What that does for you is offer 2x zoom, sort of, sometimes. 'Sort of', becautilize you can have 28mm wide-angle shots, or 56mm 'normal' ones, while everything in between is digital zoom from the wide-angle camera.

And then 'sometimes', becautilize when there's not enough light, and you still want the 2x zoom, the iPhone 7 Plus will utilize the wide-angle camera, digitally zoomed to the 56mm field of view (without warning you as is the Apple way). The Cupertino company apparently doesn't trust the combination of a smaller sensor with dimmer non-OIS optics.

The dual cameras are also what's enabled Apple to implement a Portrait mode, which applies a bokeh effect to the background, while keeping the subject in focus (most of it).

The Pixel XL does other tricks, though. It all starts with a large 1/2.3" sensor with 1.55 micron pixels (Xtra Large, if you will - don't know what we'd do with this pun if this was the regular Pixel that has the same sensor). The lens is a 26mm-equiv. with an f/2.0 aperture - so, wider than the iPhone's wide, only dimmer by a third of a stop.


Google's magic lies in the Pixel's HDR+ capability. While conventional HDR practices rely on exposure bracketing that starts when you hit the shutter release, on the Pixel the capturing camera is already capturing shots as soon as you open the app. It's keeping 9 of these at any given time, all of them with the same exposure geared towards keeping highlight details.

Once you hit the shutter release, the 9 images are stacked for eliminating noise and the Pixel XL is actually dramatically reducing it. The shadows may be underexposed, but they have accurate colors and they can be brightened up with tone mapping. Taking the photo is instant too - there's no delay once you tap on the shutter, as the 9 images have already been captured.

That's what Google says is happening under the hood, but for all the magic (magic, math, same thing) the discontinue result is superb. Sharp, detailed photos with remarkable contrast and dynamic range, we're quite impressed by the Pixel's output, to put it mildly. Colors are punchy, there's no denying that real life isn't as vivid, and yet we've seen even more saturation in LG's recent cameraphones.





Camera samples, daylight: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off





Camera samples, daylight: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off





Camera samples, daylight: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off

On the other hand, the iPhone is much more reserved in terms of color rendition straight of the camera. Per-pixel detail isn't quite as high either - see at high-frequency details like foliage and you're bound to see the difference.

The Pixel XL itself has a complicated relationship with colors. The HDR+ auto mode doesn't just change exposure, it also dials up saturation a bit, and makes things slightly warmer, too. We don't see the average user complaining about this - in fact we believe it's exactly what they'd want.





Camera samples, daylight: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off





Camera samples, daylight: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off





Camera samples, daylight: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off

iPhone 7 Plus Portrait mode

The iPhone 7 Plus has another key feature that deserves a mention - Portrait mode. In theory, it takes data from both the wide and tele cameras and analyzes it to determine the subject. Once it does, it strives to leave only that in focus while blurring the background in an attempt to recreate a portrait lens' ability to render smooth bokeh.

It works, and it doesn't. You stand a higher chance of success if you're facing the camera, as opposed to being at an angle. Beards against foliage doesn't work, and may discontinue up losing parts of your face to bokeh. Stray hairs also tdiscontinue to acquire lost.

That said, it does produce very pleasing results when it gets things right. Only don't sell your DSLR and quick portrait lenses just yet.

Oh, by the way, the iPhone 7 Plus is remarkable in that it keeps the original photo, as captured by the sensor, alongside the one with portrait mode applied - You may often find yourself liking the original better. Same with HDR, now that we mention it.






iPhone 7 Plus Portrait mode: On • Off • On • Off

HDR

The two phones hold rather different approaches to dealing with high dynamic range scenarios. In the first sample, the iPhone 7 has done a very subtle job of compressing the image and pulled a tiny bit of detail from the highlights, while also just slightly bringing out the shadows - more or less what you'd expect an HDR mode to do, only very small of it.




iPhone 7 Plus: HDR off • HDR on

The Pixel is nowhere nearly as conservative, and recovers a lot more of the sky already in HDR+ Auto, though some portions of the tree trunks discontinue up pitch black. But just becautilize the iPhone chooses not to render the same areas black, doesn't mean there's discernible detail there. With HDR+ On the Pixel's shot is nothing short of eye candy.





Pixel XL: HDR+ off • HDR+ auto • HDR+ on

The second example, admittedly quite extreme, produces some very odd results on both phones. The iPhone, for one, goes for an overall darker exposure for its HDR shot - okay, salvage those highlights, but do something about the shadows, please.




iPhone 7 Plus: HDR off • HDR on

The Pixel delivers more predictable results in terms of exposure. With HDR+ in auto mode, we see a green color cast appear out of nowhere, and it's not looking good. With HDR+ in the on position, the Phone by Google has recovered a lot of detail in the shadows, while also keeping noise there lower than in auto.





Pixel XL: HDR+ off • HDR+ auto • HDR+ on

Low light

In low light the image stacking gives the Pixel a significant advantage once again, allowing it to preserve a lot of fine detail and texture. That said, even with HDR+ disengaged, its images are sharper than the iPhone 7's, even at the expense of some more noise. The iPhone's insistence to shoot at ISO100 and low shutter speeds doesn't seem to give it an advantage and might cautilize problems with capturing camera shake and motion blur (provided, of course, that it reports the EXIF data truthfully).





Camera samples, low light: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off





Camera samples, low light: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off

Panorama

The two smartphones shoot fine panoramas, but we like the Pixel's more. There's a significant gap in resolution - the iPhone's panoramas are about 4,000px tall, versus the Pixel XL's 2,500px. But in reality, the Pixel's images have more detail and definition despite that. Look at the grass and trees and you'll see what we are talking about.

Then there's the matter of colors. In the previous flagship comparison we noted the iPhone 7's muted output and a week doesn't change much. Sure, you could edit the image and pump up the saturation, but straight out of the capturing camera app you're getting rather dull colors.

What we're not particular fans of in the Pixel's panorama mode is the need to align the viewfinder to onclassy screen dots instead of just sweeping. It's not a deal breaker by any stretch, but it's not quite as convenient.



Panorama sample: iPhone 7 Plus



Panorama sample: Google Pixel XL

Selfies

There's a whole lot to love about the Pixel XL's front facing camera, while the iPhone 7 Plus' is just okay. 8MP vs. 7MP doesn't sound like much, and it really isn't. What immediately makes a world of a difference, even before we start pixel peeping, is the coverage - the Pixel just gets a lot more in the frame.

The Pixel's images are sharper with more detail, and truer colors, particularly with HDR+ off. In auto it leans a small too much towards pink, but even so it's definitely closer to reality than the yellowish iPhone representation - knowing the guy front of the camera, trust us, that's not his skin color.





Selfie samples, daylight: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off





Selfie samples, daylight, pt. 2: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off

In low light, the iPhone 7 Plus just doesn't stand a chance, particularly when shooting with available light. Truth be told, the Pixel XL itself doesn't stand a chance against its own HDR+ shots either. The stacking has done a job so fine it's hard to believe and has preserved fine detail and colors in a very convincing way.





Selfie samples, low light: iPhone 7 Plus • Pixel XL HDR+ Auto • Pixel XL HDR+ off

Now, the iPhone 7 Plus does have a classy screen flash feature, which can assist immensely in particularly blacksettings. The Pixel sadly has no such option built-in, and this one goes in the iPhone's favor.





Selfie samples, low light, pt. 2: iPhone 7 Plus classy screen flash on • iPhone 7 Plus classy screen flash off • Pixel XL HDR+ Auto

For the more technically inclined among you, create sure you check out how the Pixel's HDR+ Auto mode compares to its own HDR+ off and the iPhone 7 Plus in our test posters under controlled lighting.





Photo compare tool: Pixel XL HDR+ Auto * Pixel XL HDR+ Off * iPhone 7 Plus

Still images winner: Pixel XL. Detailed low-noise images with pleasing colors day and night, from both the primary and the selfie cameras.


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