Still Image Performance

Now that we’ve discussed the basics of the iPhone 7 and 7 Plus camera we can start to get into how it actually performs relative to the iPhone 6s and 6s Plus as well the current competition on the market. While we normally run an ISO test to check spatial resolution this has been deferred to a future portion of the review. Unfortunately we don't really have the ability to do time-invariant testing here in a serious manner to the same extent that an OEM might, so we're effectively limited to tripod comparisons of real-world subjects.

Daytime Photography

In this kind of scenario the iPhone 7 and 7 Plus are directly comparable in the 1x mode. Because the primary camera has OIS and the secondary camera doesn't, it looks like it's fairly difficult for Apple to do an exact pixel to pixel correlation to the extent that the two outputs can be merged into a single image. As a result it's fairly obvious that the 1x mode has less detail than the 2x mode here. I can really see how this would be useful in general, as the longer focal length means more detail relative to anything else on the market but also allows for more interesting framing. The 1x camera is identical to the iPhone 7, and here it's definitely noticeable that the iPhone 7 can't quite keep up with the Galaxy S7 or HTC 10 in sheer detail in these kinds of shots.

Daytime Photography 2

In the interest of trying to not just take a single landscape photo and declare it to be a representative sample for all photos ever taken of all time with a smartphone in daytime conditions, I went ahead and took another sample shot of a mostly static subject. Here the iPhone 7 Plus in 1x mode is pretty much comparable to the iPhone 6s and Galaxy S7 as far as detail goes. I would argue that the HTC 10 captures slightly more detail at the center, but this probably isn't a surprise when the sensor is significantly larger. It's also worth noting that the iPhone 7 Plus manages to show better dynamic range here as the highlights off to the right retain more color detail than most devices tested and the shadows contain more detail that what is found on the Galaxy S7 or the iPhone 6s Plus. Once again, at 2x the iPhone 7 Plus is really just ridiculously good at capturing the sheer amount of detail that the tree has which isn't really captured by the 1x mode as most of the detail has to be blurred away to avoid aliasing. It's truly impressive how the iPhone 7 and 7 Plus are actually capable of keeping up with the Galaxy S7 despite a smaller sensor, and we're really seeing the product of Apple's ISP lead here.

Low Light Photography 1

It probably is worth mentioning here that in low light the iPhone 7 Plus doesn't actually use the secondary camera at all due to its smaller aperture and lack of image stabilization, which means that the iPhone 7 and 7 Plus are identical in low light performance. Interestingly enough detail is fairly comparable between the iPhone 6s Plus and iPhones 7, with some minor adjustment to favor more noise reduction. I'm inclined to say that the Galaxy S7 and iPhone 7 are basically comparable here but the oversharpening on the Galaxy S7 remains fairly obvious and I would expect it to outperform in detail here but it's just comparable to the iPhone 7 due to the rather smeary noise reduction. The HTC 10 is the clear winner here as far as detail goes but both the Galaxy S7 and HTC 10 really oversaturate the green shrubs while the iPhone 7 is much closer to what it should actually be. The oversaturated, smeary look that seems to dominate the Galaxy S7 output continues to be seriously off-putting for me.

Low Light Photography 2

It's interesting to see how Apple's noise and noise reduction seems to have changed from the 6 to 6s to 7 here. Detail is functionality identical but the iPhone 7 and 7 Plus clearly handle shadows better here as there's more detail and noise is controlled noticeably better with better detail and less visible noise. It's really impressive what Apple's processing is able to pull off here when sensor size and sensor technology hasn't really advanced that much from the iPhone 6s to iPhone 7. This is especially obvious when compared to the Galaxy S7, which has comparable overall detail but the noise reduction used is much more splotchy and has obvious oversharpening if you look too closely. Again, relative to the HTC 10 the sensor size deficit is very obvious here if you try to read the text on the trash cans, but the HTC 10's gamma and noise reduction algorithms are just not competitive in the shadows and it's obvious that there are uncorrected optical distortions in the light flares. The HTC 10 also tends to feel like it has a filter over the entire photo that makes it look a little soft compared to the iPhone 7 even if it does have better detail in some parts of the frame.

Low Light Photography 3

For whatever reason this scene always seems to at least mildly challenging. Here we can really start to see the softness that I'm talking about with the HTC 10, as the white pillar "bleeds" a bit into the brick wall exterior of Knudsen Hall. Detail on the iPhone 7 and 7 Plus remains comparable to the iPhone 6s Plus, but with noticeably less noise. The Galaxy S7 manages to deliver similar levels of detail to the iPhone 7, but it definitely oversaturates the red brick colors which might be appealing but really isn't accurate when you look at the RAW reference. The noise reduction on the Galaxy S7 is noticeably splotchier here and gets much worse if you look at the top right quarter of the photo. I would actually say the iPhone 7 outperforms just about everything here but the LG G5, which has better detail but a really strange color rendition.

Overall, the iPhone 7 camera is impressive and I would argue is holistically a better camera for still photos than the Galaxy S7 on the basis of more accurate color rendition, cleaner noise reduction, and lack of aggressive sharpening. It may not be as lightning fast as the Galaxy S7 or have as many party tricks, but what it does have is extremely well executed. The HTC 10 is definitely better than the iPhone 7 at delivering sheer detail when only comparing the 28mm focal length camera, but the post-processing has a tendency to bleed colors in low light which sometimes causes the images to look a bit soft. In daytime the iPhone 7 Plus' 56mm equivalent camera helps to keep it well ahead of the curve when it comes to sheer detail and really is a revelatory experience after years of using smartphone cameras that have focal lengths as short as 22mm and can't really capture what the eye sees. However, in low light the sensor size deficit really starts to become obvious. I suspect the Pixel and Pixel XL will make this especially clear. If there's really no room to go up the ladder in sensor size, Apple really needs to consider some radical approaches to improving sensor sensitivity such as RWB pixel layouts or using the dual camera for an oversampling scheme.

Camera Architecture and UX Video Performance
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  • Daniel Egger - Sunday, October 16, 2016 - link

    Amen to that. Reply
  • techconc - Monday, October 10, 2016 - link

    Blind tests are interesting, but not necessarily accurate. For example, if you take 13,000 random people off of the internet and show them pictures, it shouldn't be very surprising that the majority of them will prefer over saturated and inaccurate images. For the untrained eye, these are often more aesthetically pleasing. However, for real photographers that actually care about things like color accuracy, they are a joke. It also shouldn't be surprising that a much smaller percentage of the random population is able to accurately assess a photo. That's not to suggest that I think the iPhone wins in every photo. Rather, I don't take these random polls very seriously and treat them for what they are. Reply
  • cknobman - Monday, October 10, 2016 - link

    techconc and grayson you are both correct and if you read the article it does mention the exact points you bring up. People tend to prefer over saturation and colors that pop.

    Its a very similar reason why TV manufacturers set the default settings so high and why people are drawn to TV's on the showroom floor.

    All the same, most people are not professionals, and most professionals do not use a smartphone as their main camera.
    Reply
  • techconc - Monday, October 10, 2016 - link

    Fair enough... I'm just trying to understand the point you were trying to make with the blind photo test. If it's to point out that most people viewing such surveys don't know what they're looking at, then I agree with you. However, from the tone of your post, you seemed to be using this as the basis for claiming how much better the S7 was.

    On a side note, you mention the headphone jack. I think we can all agree this is a minor inconvenience for some in the short term, but I wouldn't agree with your characterization overall. For starters, it comes with lightning earbuds right out of the box. Most people are now using bluetooth wireless headsets anyway. For that matter, I really like what Apple has done with their W1 chip. It really fixes problems with existing bluetooth synchronization. The ability to use the same headphones with all of my devices seamlessly without having to worry about individual pairing is very appealing. Finally, as a fallback, there is always the adapter for legacy equipment. That's not a great solution but it's not the end of the world either. The fact that Apple is only charging $9 for these adapters pretty much makes it a non-issue. Just keep a couple lying around or connected to your headphones, etc.
    Reply
  • steven75 - Wednesday, October 12, 2016 - link

    In other news, TVs in super oversaturated "demo" mode rated "best display" aware by Joe Sixpack. News at 11! Reply
  • ex2bot - Wednesday, October 12, 2016 - link

    I can't see the pixels on my 6 Plus's "tiny" display. At all. Now you *will* miss the display *quality* going between the best AMOLED screens and LCDs. The 7 and 7 Plus have excellent LCD displays with better color space than the 6s, but they're not AMOLED. Reply
  • milli - Monday, October 10, 2016 - link

    Anand's Apple reviews have been extremely pro-Apple for as long as I remember. Even in the old days when their laptops were having obviously negatives, it was not spoken about.
    Any iPhone review on this website is generally very positive. They usually accomplish this by not talking about the negatives.
    Anand's iPhone reviews are interesting for one thing only and that's the detailed info of the SOC.
    Reply
  • mjh483 - Monday, October 10, 2016 - link

    It's giving credit where it's due. Reply
  • jospoortvliet - Tuesday, October 11, 2016 - link

    Amen, I found this a decent ando balanced article! Reply
  • akdj - Friday, October 14, 2016 - link

    Make that three of us ...excellent, well studied review. Many thanks for your work and realize that most of us sincerely DO appreciate your efforts! It's actually become humerus that the same three or four doorknobs continue to frequent, completely manage to miscomprehend and actually take the time and expend the effort to post the same drivel they posted ...last year. Same time. Same place. Year in. Year out. Just have to zoom by the first 80-100 whining posts from said three or four 'knobs and enjoy the remainder
    They inevitably tire out or their mother's confiscated their phones and computers.

    Looking forward to seeing the 'deep dive' and, my bad for forgetting the author who's daily driver is Android gear ...but one question for him.
    Is the iPhone 7/7+ enough _____ to consider jumping ship? :-)

    Thanks again, keep up the great work and know a small percentage of your readership will ever even 'venture' into the comments and even fewer will take the time to register and post. There's a huge population that laughs at DBag comments ...even definitions modified to refer to them and their DBagEry. Both as a noun and a verb. "Troll".

    J
    Reply

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