Saturday 12 October 2013

Apple iPhone 5s Camera Samples

resized-3The Apple iPhone 5s that we unboxed earlier is very much an “s” upgrade of the 5. The first upgrade for the 3g to the 3gs involved a better 3.2 megapixel camera, the second one from 4 to the 4s brought a 8 megapixel camera and the difference in quality was massive, and now we are at the third “s” upgrade which has brought upon significant improvements for the camera, but this time, it’s not about the megapixels. Apple has subverted the megapixel movement and, much like what HTC did, has improved the pixel size. The pixel size might be a marginal increase but Apple claims that it really shows in the photos. Well, does it?
That’s exactly what we are going to see below, with several camera samples from our iPhone 5s for an objective look at the quality. We’ll be comparing it with the iPhone 5 and several other devices at a later stage, but for now, dive in!
The Apple iPhone 5 had a 1/3.2″ 8 Megapixel sensor with a 1.4 micron pixel size whereas the iPhone 5s has a 1/3″ sensor with the same megapixel count, hence with a bigger 1.5 micron pixel size.
Keeping that in mind, we have taken a number of samples from our recent Hong Kong visit. So here is a mix of those samples, in various lighting conditions and scenes.
A typical day light shot of buildings and lots of detail in advertising. Impressive performance from the iPhone here, as expected.
resized-2Another typical daylight sample, but this time, the challenge is brighter background with objects in foreground. Again, excellent performance by the iPhone, and the HDR mode here could have helped it a bit more. But still, the detail, even at 100% is really impressive.
Now this is with the Sun in the background, so the image is well lit, but we still see some slight uneven exposure in this image. A HDR version of this will prove our point, take a look -Notice the shadows and how detailed the tall building is? That’s the super fast HDR capture’s advantage. It might not have the tone mapped effects, but it does the job. Now onto tougher lighting conditions -
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This has been taken in indoor lighting conditions, with artificial lighting providing enough to keep the noise levels low, and that’s exactly what has happened here. Really impressive detail and less noise.

resized-8Another indoor sample of dolls under artificial lighting. To witness the impressive detail retained, check the hair strands in full resolution.
Another indoor shot, this time with direct lighting. Nicely leveled image and not much of a challenge for the iPhone to be honest. Talking of challenges.
resized-4A shot of the Peninsula hotel lit in bright purple. This is arguably really tough conditions for most cameras. The highlights, white balance and the exposure have to be right. While the iPhone may have over done the white balance, the low light picture is awesome. There is a slight amount of noise creeping in, but that’s certainly expected and doesn’t make the image any less useful.
resized-9Another low light shot, but this one in near-macro distances. The new f2.2 lens enables a nice bokeh but the noise has crept in and is very noticeable at full resolution. The 1.5 micron sized pixels still have to boost up its signals to provide a usable photo.

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And lastly, a picture of a direct light source, which usually makes all the other details disappear. The logo of the coffee shop here is picture perfect but the ambiance is completely lost. So we tried HDR and this is what we got -You can obviously see more now, at the expense of noise. This is the bane of a small sensor and even HDR cannot compensate for this.


As you can see from the above images, the iPhone 5s is very much a great cameraphone. The iPhone 5 was already one of the best smartphone cameras around, but with Nokia stepping up the game in the imaging department with the computational oversampling(808 and Lumia 1020 PureView) and others in the Android camp stepping up their game equally(Xperia Z1, Oppo N1), it will be very interesting to see how the iPhone 5s compares with those. And not to worry, we’ll be certainly up to that task, so stay tuned to our blog for more on the 5s’ camera!

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