Sharp Leica supervised camera smartphone "AQUOS R6" details

A sharp smartphone "" equipped with a camera system in collaboration with Leica was announced on May 17.If you only hear the specifications of a 1 -inch sensor, it is a smartphone that is a so -called “luxury compact digital camera”, but it is a smartphone that supports 5G communication.It is a specification reminiscent of that famous machine "Panasonic LUMIX DMC-CM1", and the expectation is high.The release will appear from NTT DOCOMO and Softbank after mid -June.

This is not the first time to collaborate between Leica and smartphone makers.LUMIX CM1, which was released overseas in November 2014, is more like a smartphone function on a digital camera LUMIX, and the "Leica DC ELMARIT" lens installed here is Leica.Panasonic is based on the flow of collaboration with a digital camera.

と、“1型センサー×ライカレンズ”の先輩であるLUMIX CM1（右）。CM1はデジカメ寄りなので横にして構えるのが基本

In contrast to a pure smartphone maker, the first example of Huawei P9, a Chinese Huawei smartphone released in Japan in June 2016.The dual camera composition containing monochrome sensor was known as a high image quality that was not ashamed of Leica.The installed lens is "SUMMARIT H 1: 2.2/27 ASPH.Huawei has since then launched a smartphone with a camera in collaboration with Leica, and the camera has become one head.

Then, this Sharp worked with Leica.Sharp's smartphone had been collaborated with Ricoh GR, but as a total, the camera was not so sharp.Such Sharp has chosen a collaboration with Leica to further enhance important camera functions as a differentiating smartphone as a smartphone differentiated factor.

In Sharp, discussions with Leica began while considering the adoption of a 1 -inch sensor to improve camera image quality.That is 2019.A full -fledged project began in February to March 2020, and the official recruitment of a 1 -inch sensor was decided.

前モデル比で約5倍の面積という大型の1インチセンサーを採用。有効画素数は約2,020万画素レンズの下に置かれているのが1インチセンサー。レンズの下にこの大型サイズのセンサーが搭載されている

As the sensor size is larger, the focal length to obtain the same angle of view becomes longer, and the lens becomes larger.Then, it will be thicker to built into a smartphone.In the LUMIX CM1, we were dealing with the adoption of a sink -type lens, but as a general smartphone, we focused on a style without a sinking mechanism to maintain shock resistance, waterproof performance, and design.

レンズは7枚構成。前モデルは6枚構成だった内部写真。ぎゅっとレンズを詰め込んだ。下がセンサー側参考：とLUMIX CM1（※社外品のフジツボ型フードを装着）の比較。LUMIX CM1はレンズが大きく、沈胴式のため、同じ1インチと考えれば、は大幅に薄型化している

As a result, it was difficult to design the necessary focal length while reducing the thickness.In addition, it is necessary to clear the strict image quality evaluation by Leica.As a result of many simulations and discussions with both, we developed a seven lens unit.From the balance between image quality and size F1.9 was the optimal, and Leica's standards were cleared, and they were certified for the "SUMMICRON".The lens name is "Summicron 1: 1.9/19 ASPH.In the conventional AQUOS R5G ratio, the resolution performance has been improved by 15 % with the MTF value in the sagic direction.

In the development of the corona, the Leica side is sent to Leica, and the Leica side is verified, receiving the design advice and evaluations, and improving it, and "simulation and image quality adjustments that have been used in the past.Is repeated, "says the company.Apparently, the Leica side seemed to have accumulated smartphone cameras design know -how in collaboration with Huawei, and the sharpness was surprising.

と、ライカの代表機種「ライカM10」（右）ちなみにファーウェイ端末のようにカメラ機能のUI（フォント）はライカに似せていない。ただ、もともとAQUOSスマートフォンのシャッター音は、ライカのシャッター音にインスパイアされたものらしい。

A camera unit with a 1 -inch sensor and a SUMMICRON lens was developed, but this unit does not use a multi -camera system that uses multiple cameras in the latest smartphone camera.The reason is that "80 % to 90 % of users are performed by almost standard cameras" (the company), and a 1 -inch sensor is used to achieve "penetrating performance" with the main camera.did.

Although it is not a multi -camera, it cannot be switched angle of view, but it is dealt with by digital zoom.The angle of view of the lens itself is an ultra -wide -angle lens equivalent to a 35mm format, but the main is 24mm equivalent to crops and digital processing.Simply crops will decrease the number of pixels, and if the number of pixels changes depending on the angle of view, the user will be confused, so even when recording the main 24mm recording, it is recorded in 20 million pixels by digital processing.It seems to be.After that, if you zoom more than three times, it will automatically perform super -resolution processing at the time of recording, reducing image quality deterioration.The maximum magnification is set to 6 times (equivalent to 152 mm).

実際に（試作機）で撮影した画像。これは超広角の19mm相当。ちなみにこのジオラマは、ウルトラマンで実際に使われたものを借りてきたらしいこちらはメインとなる24mm相当。実際はデジタルズームだが、画質の劣化は最小限。なお、本稿の実写画像は試作機によるもので、製品版とは画質が異なる可能性がある3倍相当のデジタルズームで撮影（72mm相当）デジタルズームの望遠端となる6倍で撮影（152mm相当のウルトラレゾリューションズーム）

The sensor is a 1 -inch valid 20.2 million pixel, and is the same as a high -quality zoom compact camera.However, the sensor maker is not disclosed.There is no dual pixel AF or a statue plane phase difference AF, and it is basically contrast AF.Instead, it is possible to focus at high speed by laser AF by installing an ITOF camera, and the fact that AF operates even in dark places is an advantage.The long distance is only contrast AF, but it will not be a problem in practical use.

暗い中にを設置。真っ暗に見えるが、レーザーAFが右のように被写体を認識しているナイトモードのテスト。見た目通りの露出になるように撮影しており、実際に真っ暗闇の状態。左に、右にAQUOS R5Gが設置してある。の方はこの時点で被写体が浮かび上がっている撮影すると、左のではここまで明るく写る

When I actually shot it, the AF speed was not as fast as other companies' products, and there was no optical camera shake correction, so I was worried that it was easy to shake.However, all of them are still due to prototypes and are still tuning, including image quality, so I would like to look forward to it in the future.

近年一般的なスマートフォンでは、被写体や背景までの距離を測って演算することでデジタル的にボケを作れるが、は大型センサーと明るいレンズで光学的にボケを得ている。そのため、デジタル処理で作り出すボケが苦手とする、ストローや髪の毛のような細い部分も自然なボケとなる

The 1 -inch large sensor is about 5 times the company's AQUOS R5G compared to the company's conventional AQUOS R5G.It is said that the pixel size is large, so the dynamic range is wider and dark noise is reduced by 40 %.Other companies also use high -resolution sensors to collect multiple pixels into one and simulate pixel size, but it requires a new circuit, which gaps between pixels.There are many issues, such as leading to poor image quality.On the other hand, physically large sensors are simply advantageous in image quality.

The chipset adopts the Qualcomm's Snapdragon 888, uses a variety of digital processing like a smartphone camera, to make the most suitable shooting settings by subject recognition, multi -frame noise reduction, etc.Equipped with functions.It seems that the quality of computational photography is also improved.The size of the smartphone is packed with specifications comparable to such high -end compact digital cameras.This time, I look forward to seeing this real ability because the live -action prototype and real fields did not come true this time.