What Is Dual Rear Camera Phones
(Pocket-lint) - With more and more than smartphones launching with a multi-lens photographic camera arrangement, we're taking a await at where this has all come from and romp through the history of dual, triple and (gasp) quad lens smartphone cameras.
Dual lenses on smartphones aren't new, with a number of models offering a range of unique features using this camera setup as far back as 2011 in formats you'll recognise - non forgetting the Samsung B710 offering a dual lens back in 2007! (Cheers for that tip Leo.)
Getting a telephone with a single lens might now be a rarity, just follow us as we walk you through primal moments in smartphone multi-lens camera systems of the by and into the nowadays...
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LG Optimus 3D and HTC Evo 3D: Another dimension
In 2011 3D was a thing. The world's Television receiver manufacturers were lining upward 3D TV sets, there were 3D films existence produced and nosotros were being told that 3D was the next big thing (once again).
For smartphones, it was the opportunity for innovation. The LG Optimus 3D was announced in February 2011 and the HTC Evo 3D launched on Sprint in March 2011.
Both these smartphones (and there were some others) used dual lenses to allow them to take 3D video and 3D photos. They use the same technique used by regular 3D cameras, using those dual lenses to create a sense of depth in images. This was boosted with a 3D brandish to view those images, without the glasses.
But 3D was only a passing phase, and although we could capture 3D, ultimately, that was only the start of the story for modernistic multi-lens smartphones.
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HTC One M8: Making sense
Information technology was the HTC One M8 that really introduced dual lens cameras to the world and saw HTC trying to practice something different. The HTC One M8 was launched in April 2014 and used two sensors in the same way that modernistic smartphone cameras do.
With a 4-megapixel UltraPixel main image sensor and a secondary 2-megapixel sensor capturing extra information, the dual lens camera was used, like 3D, to create a sense of depth in photos. The idea was that the 2nd lens could create a depth map and feed it into the last prototype.
That meant you lot could create bokeh/background blur effects, you could refocus the image with a tap and you could easily manipulate photos, keeping the field of study abrupt and changing the backgrounds, fifty-fifty later on you lot'd taken the photo.
The One M8 was clever, but the camera wasn't that impressive. The effects were rather gimmicky and the benefits of having a dual camera didn't really make an bear upon - fifty-fifty if the full metal body did.
There are still plenty of devices that have a second lens for "depth" and nothing else - but that's often seen as a method of getting background blurring on portrait shots.
HTC might take started this whole second lens thing, only it was near two years in advance of the residue of the pack - and it was 2016 that really saw the manufacture change.
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LG G5: Going wide
Stride forward a few years and LG announced the LG G5 in February 2016. In that location were two things that were interesting about it. Firstly, it attempted to integrate modular accessories - which was a bomb - and secondly, LG equipped it with dual cameras, one of the kickoff phones to launch in 2016.
In that location was a principal 16-megapixel sensor and a second 8-megapixel sensor. Rather than combining information to create effects, the 2nd lens was ultra wide-angle.
With 135-caste lens on the rear for that eight-megapixel photographic camera, the LG G5 could shoot wide-angle photos to bully effect. Yous could merely switch from one camera to the other, perfect for tight spots or landscapes - and the chance to create something you lot can't practice with software.
LG added the wide-angle to the V20 and subsequent models in the G and V series, simply it wasn't until the Huawei Mate 20 triple camera that nosotros saw big moves in broad-angle from other manufacturers. That all changed in 2019, as everyone else realised that wide-angle was a creatively sound proposition.
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Huawei P9: Leica's monochrome mark
In April 2016 Huawei launched the P9 in partnership with Leica, with two cameras sitting on the back. Huawei's big selling point wasn't about depth sensing or wide-angle, it was about monochrome and information technology was the kickoff of some influential work in multi-camera systems from Huawei.
Leveraging Leica's classic monochrome skills, the Huawei P9 presented two cameras on the rear, challenge one lens captured RGB colour and the 2nd lens captured monochrome detail. This resulted in some dandy black and white photos, just working together, the P9 attempted to combine information from both sensors to make all your photos meliorate - and by and large speaking it all seemed to piece of work well.
Huawei continued with this system through 2018 into the Huawei P20, launched alongside another significant device: the Huawei P20 Pro.
Honor used the same system in a number of devices - without the Leica branding - adding a monochrome sensor on the Accolade 8 and subsequent devices, until nosotros hit the Honor View 20. It wasn't just Huawei and Honor - Nokia adopted the same system on the Nokia 8, merely with Zeiss branded lenses. OnePlus likewise included a monochrome sensor on the OnePlus 9 in 2021 - in partnership with Hasselblad - and so this is nevertheless a trend that'south still rolling.
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Apple iPhone seven Plus: A play to zoom
As 2016 continued, one of the large launches was the Apple iPhone 7 Plus with two cameras on the rear, both 12-megapixels, only offer unlike focal lengths. The showtime photographic camera was 23mm zoom, while the 2d camera was 56mm and we entered the realms of telephoto on phones.
The idea was to let you zoom without losing as much quality, switching to the 56mm camera to get y'all closer, and then any digital zooming you practise is then starting from a closer position, so the loss in quality will be lessened. Apple wanted to accost what it saw as a meaning trouble with smartphone photography and came up with a solution that matched user behaviour.
Apple tree also played HTC's game past offering bokeh effects thanks to a depth map drawn from both lenses.
Since the launch of the iPhone seven Plus, Apple has continued to offer zoom on its phones and many others take moved to adopt a zoomed lens too - in 2017 OnePlus added information technology to the OnePlus five and Samsung launched its commencement dual-camera phone, the Notation viii, a system it has continued with since.
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Huawei P20 and Mate 20 Pro: Iii is the magic number
When the Huawei P20 Pro was announced in early 2018, everything was poured into the camera, with a new triple camera system. This added a zoom lens to the to the existing system of RGB and monochrome sensors, simply there was a lot more than happening with AI - and the birth of an impressive Nighttime Mode.
The Huawei P20 Pro was a great success, a camera that justified its excesses with results and proved the critics wrong. It seemed to do everything.
What was a little suspicious, however, was the evolution in the Huawei Mate 20 later in 2018. Again using a triple camera organization, Huawei switched it up, dropped the monochrome sensor swapping in a wide-bending lens instead, effectively turning its back on the previous 2 years of marketing. The results, though, gave very trivial to complain about, adding that desirable broad-angle with seemingly no quality downside for losing that monochrome lens - so did it ever really practise annihilation?
Samsung also offered a three-lens camera in the Samsung Milky way A7 in 2018, simply opted for regular, wide-angle and a dubious tertiary for "depth information" and nothing else. Oppo graced the R17 Pro with iii cameras, only perhaps more than confusingly, offered a chief camera, a depth photographic camera and a concluding time of flight photographic camera - ane of the beginning phones to push time of flight as some other sensor to feed into AR, depth and other applications.
Subsequently, iii cameras has become common. The 2020 iPhone 12 Pro offered three lenses, the 2021 Samsung Galaxy S21 has three cameras and lots of more affordable devices accept three cameras also. There's a wide difference in functioning, with many cheaper phones using macro cameras to make up the numbers.
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Galaxy A9: Samsung shoots four the stars
Samsung likes "earth firsts" and having lost out to Huawei on the triple camera front and been fairly dull to adopt dual camera systems, the Samsung Galaxy A9 strode out with four cameras on the dorsum in 2018. Samsung has continued to offering four cameras on some phones: the 2021 Galaxy A52 for example.
Quad cameras are everywhere since the turn of the decade: at the high end you have duplication of zoom lenses to requite you better performance, while in affordable devices there's ofttimes principal, wide, macro and depth cameras. It seems that the value of having "quad photographic camera" on the spec sheet is more of import than the bodily performance.
But in the mix of multi-lens cameras came another of import development in 2019.
Huawei P30 Pro: Periscope hits the mainstream
In 2019, Huawei launched probably the most notable phone it had ever fabricated. Although Oppo had shown off a periscope lens previously, and the Asus Zenfone Zoom had really used it in 2015, it was Huawei who hit the big time, offer zoom on the Huawei P30 Pro that was hitherto unchallenged. Offering higher quality long range capture, it was certainly a quantum, while likewise pushing night shooting skills to rival those shown off by Google's Night Sight in late 2018.
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The P30 Pro seemed to practice it all and laid the foundation for phones that now follow. The periscope zoom graced the Oppo Notice X2 Pro in 2020, the Samsung Galaxy S20 Ultra and the Realme X3 SuperZoom. It continues to be a highly desired feature, with Samsung rearranging the cameras in the 2021 S21 Ultra to have two zooms, one periscope and i regular, in an effort to boost zoom quality. It's a high-terminate trend that'due south stuck, fifty-fifty gracing phones similar the Pixel half-dozen Pro in 2021.
The Huawei P30 Pro can take credit for a lot of this, but the P30 Pro was also ane of the last Huawei phones to run with Google Mobile Services. Although more than contempo Huawei phones offer amazing camera capabilities, they've proven less popular than the P30 Pro.
Nokia 9 PureView got five on it
Nokia moved in a unlike direction in 2019, launching the Nokia 9 PureView with five lenses on the dorsum. Unlike other systems, these weren't lenses designed with different functions - at that place'southward no zoom, no wide-angle. Instead, the lenses use Light's system pursuing quality above all else. The idea was to capture a lot more data to combine into images.
Information technology's a great theory, simply Nokia was trying to practice a job with lots of data that rivals - like Google - was doing with AI. Ultimately, AI and the growth of computational photography won this race.
The Nokia 9 PureView launched on outdated hardware - with Nokia saying at the time that information technology was tuned for the camera system and they didn't want to alter that. Customers besides didn't want to purchase it. Information technology didn't review well - after the first reviews went out, Nokia stopped putting the phone out, and so nosotros never got to test it in the mankind. It was ambitious, but ultimately, the market has run off in a unlike direction - and we're nevertheless waiting to encounter if Nokia volition launch a another premium flagship to supersede the 9.
The future for multi-lens cameras
The smartphone market place has distilled into quality lenses on high-stop phones and junk lenses on cheaper phones - with every ane wanting multiple cameras on the back of their phones.
Things have slowed down a niggling in recent years; since the advent of the periscope lens in 2019 we've seen little meaningful progression, with the focus largely beingness on increasing resolution, allowing support for video formats like 8K, simply most of the gains - stabilisation, ameliorate long range zoom, nighttime modes - leveraging more powerful AI than optical lenses.
Indeed, in whatsoever phone launch, you lot're likely to hear more well-nigh the how the powerful neural processing unit can handle the data from the camera than you are most lense elements or other core photographic hardware.
On the eve of the launch of the Samsung Galaxy S22, we're expecting the S22 Ultra to be much the same every bit the previous year; nosotros're expecting the iPhone 14 later in the year and the big question volition exist whether Apple volition step up its zoom performance with its new telephone, or stick with its tried and tested system introduced on the iPhone 11 Pro and tweaked a piddling every year.
Source: https://www.pocket-lint.com/phones/news/samsung/138719-dual-triple-quad-penta-camera-smartphones
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