Introductio
The fact that Nokia 808 PureView is the best cameraphone money can buy is sure as shooting. This won't even pass for a pun. The 41 megapixel sensor and the tack-sharp optics deliver what no other smartphone can match and we even saw it successfully stand its ground against much heavier competition.
The Nokia 808 PureView is on its march to becoming iconic, trashing the Olympus PEN E-PL2 Micro Four Thirds camera in our blind test and then matching the Canon 5D Mark III for resolution in the process.
Yet, both of those (admittedly, impressive) achievements came in tests that really played to the PureView's strengths. Strong lighting is where the host of tiny pixels can get the upper hand over fewer, if larger, ones and all the samples we gave you so far were captured in perfect conditions.
It's far from certain whether the Nokia 808 will keep its perfect record once darkness falls and noise starts to show its ugly face. We are right there in the camp of the doubters too, so we had no other choice but put the PureView through a series of tests and see its true worth.
We've once again recruited a couple of elite rivals in the face of the Canon 550D and its APS-C sensor and the aforementioned Olympus E-PL2. The Galaxy S III is here too, to put the performance of the cameraphone in proper perspective.
Having mentioned the pixel size of the 808 PureView, we feel we need to make an important note here. Even though the 41MP sensor might lead you to believe otherwise, the size of individual pixels isn't any smaller than those of the Galaxy S III, or the iPhone 4S. Nokia have put a large (by cameraphone standards anyway) 1/1.2" sensor inside the PureView and there was no need to go to extremes to achieve the mind-blowing resolution.
It's only when you compare the pixel size of the Nokia 808 PureView sensor to those inside the DSLR and Micro Four Thirds cameras that you can call them small.
Now, let's cut to the chase and start with the shooting.
Flash test
We start with the most common scenario. All cameras had their ISO setting set to automatic and flash was enabled. Each of the contenders was shot in its maximum native resolution, save for the Nokia 808, which appears twice on each set of crops - once in its full-res 38MP mode and once in the 8MP PureView mode we believe will be most frequently used.
We placed the subject about a meter and a half away from the cameras, as we doubt many will shoot such wide-angle lenses from much greater distance. Here go the crops.
The Nokia 808 PureView put its Xenon flash to great use, capturing an amazing amount of detail here. The native 38MP mode did show some noise, but nothing we can't live with, while the 8MP PureView shot is simply stunning.
The Samsung Galaxy S III cheated quite a lot there as it dropped its shutter speed to 1/15 which, combined with a LED flash, allowed it to keep the ISO at 200 only. However in real-life scenarios (when you don't have a tri-pod like we did) photos shot at this kind of shutter speeds are certain to come out blurred due to camera shake more often than not.
But even if we assume that every Galaxy S III owner is an experienced photographer with a super steady hand, its output is still nowhere near the PureView standards.
As for the two large-sensor cameras, the Canon 550D chose to underpower its flash and shoot at ISO 400, failing to match the 808 PureView. The Olympus E-PL2 did better and almost matched the Nokia smartphone in terms of resolved detail, but its photo came out with extremely poor contrast, which means the Finn got the first win for today.
You can check out the full-res samples from all cameras below.
No flash test
For the second test we disabled the flash units to get them out of the equation. That's hardly going to be as frequent a case as the previous one, but it was a good way of testing the 808 PureView performance in those scenarios when flash usage is simply pointless - i.e. when shooting landscapes or when the subject is reflective and the flash will ruin things.
Here go the two set of crops from the two images we captured.
Impressive, isn't it? The Nokia 808 in 38MP mode has the most detailed output and even its 8MP PureView mode showed quite a lot of fine detail. Granted, when using 38MP mode the Nokia smartphone images come out the noisiest, but it's the less irritating luminance noise, rather than the color patches that dominate the low-light shots of other smartphones and didgicams.
With the first shot the Nokia 808 PureView kept the shutter speed at the relatively easy to handle 1/25, but it did go the Samsung way with the second photo and dropped to 1/16. The Canon 550D DSLR camera stuck with 1/30, which should normally allow you to capture sharp photos at this focal length if the subject isn't moving while the Olympus chose 1/50 and 1/60 settings, which are certain to avoid camera shake and even motion blur on most occasions. However the higher shutter speeds of the Olympus camera meant that it needed to go for a higher ISO setting, which inevitably took its toll on the image quality.
Nokia 808 PureView 38MP • Nokia 808 PureView 8MP • Olympus E-PL2 • Samsung Galaxy S III • Canon 550DKeep in mind that the two cameraphones have the luxury of using brighter lenses here - the 808 PureView F/2.4 and the Galaxy S3 F/2.6 apertures allow them to keep their ISO lower for the same shutter speeds compared to the F/3.5 kit lens we had on the Canon and the Olympus.
Video test
The final part of our low-light test aimed to compare the video recording capabilities of the cameras involved. Things were a bit trickier this time as the Olympus E-PL2 only does 720p videos, so we had to upscale its output to match that of its competitors.
Here's what we got when we were done with all the shooting and stitching. Keep in mind that the crops you see at the start of the video are slightly enlarged so the noise amount will be easier to compare.
Once again we are impressed by the competitiveness the Nokia 808 PureView showed. In conditions where the Galaxy S III produced barely usable footage, the Nokia cameraphone pulled off a pretty good performance.
The Nokia smartphones's video is better than the 720p clip from the Olympus and it's comparable to the Canon 550D output. Granted, the smartphone can't keep up with the dynamic range of its APS-C sensor-packing competitor, but the noise and detail levels are quite close.
Conclusion
If, after reading this article, you thought that Olympus and Canon should start trembling with fear, you are wrong. Image quality is one thing, but cameraphones lack the versatility of the larger sensor cameras with interchangeable optics, so DSLRs and EVILs won't be replaced any time soon.
Nor was that Nokia's idea when designing the 808 PureView. The 41 megapixel sensor was set to annihilate smartphone competition and hopefully steal some users from the casual point and shoot camera market. That's why its low-light performance is so important - casual photographers are quite likely to be taking photos at a disco or at dinner table in a restaurant, where lighting is far from perfect.
Fortunately, the Nokia 808 PureView rose to the challenge and put up a performance closer to that of its MFT and APS-C competitors (again we are only talking image quality here) than to its smartphone rival. The huge leap forward for the cameraphone world is complete. Now let's hope this is just the first of many more PureView cameraphones to come.
5:27 AM
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