Huawei Mate RS Porsche Design has an identical camera setup to that found on Huawei P20 Pro and honestly, this camera setup delivers best handheld ultra-low light photos you can get from a phone. It is a triple camera setup with a combination of 40 MP main camera with OIS, 20 MP Black and White camera and 8 MP Telephoto camera with an aperture of f/1.8, f/1.6 and f/2.4 respectively. Huawei developed this special triple camera setup together with Leica Optics and this is one of the few cameras to support 3x optical zoom on a smartphone.
Beyond low light, camera is solid across the board. Despite boasting a 40MP main sensor, default shooting resolution of phone is 10MP. Using a technique call pixel-binning, camera combines pixels to make a lower resolution image that looks better. Camera also implements some heavy Artificial Intelligence to identify what you're shooting and optimize photos as it sees fit. For example, if you're shooting a blue sky, camera will bump up saturation making blue color stand out more. It can detect over 30 breeds of dog, automatically blur out background when you're taking a portrait shot and can crop in to reframe your macro photos. A lot of times, this heavy usage of AI can also get too much for users.
During my camera test, I found out that skies looked a bit too unrealistic using sky filters. During shots of grass, unfiltered photos looked more natural, while filtered ones made greens in grass look saturated, and sometimes filmy. Luckily, it can be switched off in settings, under 'Master AI' option, though if you have some patience, you might want to leave it on. Huawei has tuned this feature to get to know its user over time. Phone automatically judges user behavior using camera app activities to deliver photos to user's preference on the long run. For example, when Grass is given greenery filter, which displays in words on screen after a small delay, if you don't want to use it, then simply hitting "x" to the corner of auto-selected mode, it will be disengaged. If this happens a lot for a given mode, phone will learn that you don't appreciate that particular mode and begins to not use it in all given scenarios.
Phone's main 40MP sensor and a secondary 8MP 3x zoom module also combine to deliver best combination hybrid optical/digital zoom I've ever seen on a smartphone, even beating Samsung Galaxy S9+ in poor lighting. Low light shooting in night mode is where this camera jumps ahead of competition, with Huawei Mate RS Porsche Design able to extend shutter speed for up to four seconds, still keeping everything steady for a crisp long exposure shot. Better still is the fact that you can shoot in full manual mode across resolutions and save photos as RAW files as well. As a result, whether you're a novice or an expert, Huawei Mate RS Porsche Design can probably strike your balance.
Phone can shoot videos up to 4K at 30 fps and slow mo videos at 720p up to 960 fps. Videos from this camera setup are also exceptional, and with Full HD stabilization, even zoomed in videos look amazingly good. AIS (Artificial Intelligence Stabilization) is turned off in 4K and 1080p video at 60 fps for heat management and battery saving reasons, though. As for 960fps slow motion video, this is terrible in bad light, great in good light. That said, Huawei Mate RS Porsche Design exposes slow motion clips less than Samsung Galaxy S9+, resulting in generally darker videos.
With such a feature rich rear camera setup, one might think that Huawei might have paid less attention to front camera but that isn't the case as phone comes with a massive 24MP front camera with an f/2.0 aperture. Camera takes excellent selfies, which are well lit, and due to heavy megapixel count, there's a lot of detail captured. Videos can be shot up to 1080p which look pretty good, thanks to Leica Optic's technology.
To sum it all up, Huawei Mate RS Porsche Design's camera delivers photos in which detail is excellent, unadjusted colors are accurate, and low-light performance is very respectable. Night mode is particularly handy if you're only shooting static subjects, taking a series of exposures over a 6-second period. As compared to its competitors, Samsung Galaxy S9 and Apple iPhone X, this camera setup is arguably the better one.