cough cough cough,Recently, there has been another big incident in the machine circle,Huawei has done it again"Direct sales without release"Riot operation,Huawei P70Huawei Pura 70 series is directly on the shelves,It is difficult to escape the fate of robbery。
The first batch of users who got the Pura 70 Ultra couldn't wait to share their hands-on experience, among which the popularity of the "telescopic lens" is high!
Obviously, this "fresh" shooting experience has aroused everyone's interest!
The Internet has quickly released a mobile phone camera dismantling video, to put it simply, it is to control the lifting of the lens by rotating and telescoping.
But it's not the first time that a "telescopic lens" has been used on a mobile phone!
Far away, as early as 2006, when it was still a feature phone, the Samsung SCH-B600 already used a telescopic lens that supports 3x optical zoom.
In the era of smartphones, Samsung also launched a Galaxy K Zoom mobile phone with a telescopic lens in 2014, and "a smartphone with 10x optical zoom" has become its main selling point.
Panasonic released the Panasonic Lumix DMC-CM1 in the same year, which is very similar to the shape of the camera, and it also uses a 1-inch outsole CMOS.
However, the above "telescopic lens" mobile phones have a common problem, the shape is biased towards the camera, the lens module is very large, the body is too thick, coupled with the mechanical structure is too complex, the research and development cost is high, the mobile phone battery life is greatly reduced, and the dust and waterproof are not easy to do, and other reasons, and finally were eliminated by the market.
In recent years, the telescopic lens of mobile phones has reappeared!
At the 2020 Xiaomi Developer Conference, Xiaomi demonstrated a retractable large-aperture lens, which has two major features in addition to being retractable, one is a large aperture, which increases the amount of light by 300%, and the other is the addition of new anti-shake technology, which increases the shooting clarity by 20%.
But four years have passed, and to this day, the technology is still not applied to Xiaomi mobile phones.
But there's no hurry, after all, Huawei's telescopic lens patent was also applied for in 2019, and it has not been used in mass production until now, waiting for the release of Xiaomi's "true telescopic lens" mobile phone.
OPPO also showed a "pop-up telescopic lens" at the 2021 Future Technology Conference, which can also be raised and lowered, with two modes, under normal conditions, it is a wide-angle main camera, and when it is raised, it becomes a portrait lens with a 50mm equivalent focal length, which is equivalent to a combination of wide-angle and telephoto.
All of the above are still concept phones, and they can only be said to be an attempt, but Transsion, which has developed overseas, launched a mass-produced mobile phone with a telescopic lens in 2022 - Transsion Tecno Phantom X2.
So when the retractable lens of Huawei Pura 70 Ultra exploded on the Internet, many people thought that Huawei's retractable lens was plagiarized from Transsion.
At first glance, the two are indeed very similar! The same telescopic lens, and the same decorative ring with a conspicuous color, but in fact, the essence of the two is not the same.
The telescopic lens of the Transsion Tecno Phantom X2 is used on top of the portrait telephoto, supporting 2.5x zoom and 65mm equivalent focal length. To put it simply, Transsion's telescopic lens is designed to reduce the thickness of the telephoto lens.
The telescopic lens of the Huawei Pura 70 Ultra is used on the main camera, as long as the [camera] is turned on, the rear lens will automatically rise, and there is no so-called "zoom" shooting function.
So why does the Huawei Pura 70 Ultra still use a telescopic lens? In fact, the core purpose is also to reduce the thickness of the phone, but it is a little different.
Nowadays, the size of the camera sensor used in mobile phones is getting bigger and bigger, and the 1-inch outsole is used in many imaging flagship phones, although Huawei is a bit slow, but the 1-inch outsole is also used in the Pura 70 Ultra.
Have you ever wondered why the larger the size of the mobile phone camera sensor, the thicker the thickness of the mobile phone?
The mobile phone camera includes two parts: the sensor and the lens, and the lens will include multiple lenses, and the mobile phone generally uses 7 lenses, and the multiple lenses together constitute the "thickness" of the lens.
However, if the sensor area is too large and the distance between the lens and the sensor remains the same, or the lens is too close to the sensor and the exit pupil distance is too short, there will be two problems, one is that the edge picture will deteriorate, and the other is that it will cause the corners to lose light and produce vignetting.
In order to solve the problem of poor image quality at the edges, some mobile phone manufacturers will adopt the method of cropping. Therefore, although there are some mobile phones on the market that nominally use a 1-inch outsole, the actual picture quality is 1-inch cropped, not really 1-inch.
The retractable lens of Huawei Pura 70 Ultra may be to solve the problem that the lens is too close to the outsole sensor, and by telescoping, the lens is kept away from the sensor, increasing the exit pupil distance, thereby reducing vignetting, reducing distortion, and improving the image quality performance of the edges.
In essence, using a telescopic lens for mobile phones is not a very new thing, and it is not a difficult thing to do, after all, it has been around since 2006!
The hard part is how to make it miniaturized and make sure that the phone is airtight!
After all, since the telescopic lens has the action of "telescopic sliding", there must be gaps in between, and the gaps are used for a long time, which is bound to cause problems such as dust and water seepage.
HuaweiPura 70 Ultra is a cow,Even in the case of adding a telescopic lens,It still achieveIP68 dustproof and waterproof!In fact, it can also be seen from the teardown video,Huawei's telescopic lens adopts a double-layer structure,The outer layer is waterproof,The inner layer is the lens。
And the "telescopic lens" is also a new direction that opens up the lens of mobile phones.
As mentioned above, the mobile phone "telescopic lens" has been mass-produced in two directions, one is used in the telephoto lens to avoid the telephoto lens causing the mobile phone to be too thick, and the other is used in the outsole sensor, so that the mobile phone is not too thick on the basis to ensure the image quality of the shooting.
But in fact, there is another telescopic lens scheme that everyone may want more, which is continuous optical zoom shooting, just like the zoom lens of a camera, one lens realizes optical zoom shooting with different focal lengths.
In fact, "continuous optical zoom shooting" has been first applied by Sony Xperia 1 IV, used in telephoto lenses, 85mm-125mm equivalent focal length, although optical zoom can be used, but the lens can not be stretched out, zoom is done in the lens.
When shooting, there is a zoom frame that slides to zoom, but the zoom quality is not very good.
However, combining a telescopic lens with continuous optical zoom shooting should be a good direction, especially when shooting video, and the continuous optical zoom image quality is beautiful.
If the future mobile phone can achieve ultra-wide-angle, wide-angle, and telephoto shooting with one lens, it is also a beautiful thing to think about, and it will be one step closer to "killing the SLR".