Shulou(Shulou.com)11/24 Report--

Most of the film lenses of the same brand and series have the same size and approximate weight. This can not only reduce the cost of production and maintenance, but also keep the center of gravity consistent when changing the lens and avoid repeatedly adjusting the relevant accessories. Since 2019, this "shared body" design has become more and more common in photographic lenses.

In the environment of the camera industry, I think it is completely understandable to share the mirror body and even the optical unit.

When Canon designed EF-M lenses, Canon made all 8 lenses have φ 60.9mm diameter. After the introduction of RF lens, Canon further realized shell reuse and lens group reuse.

RF15-30mm F4.5-6.3 IS STM and RF24-105mm F4-7.1 IS STM Mirror Multiplexing

RF24mm F1.8 MACRO IS STM and RF35mm F1.8 MACRO IS STM Mirror Multiplexing

Rear lens group of RF600mm F11 IS STM and RF800mm F11 IS STM

RF800mm F5.6L IS USM follows the optical design of RF400mm F2.8L IS USM, and RF1200mm F8L IS USM follows the optical design of RF600mm F4L IS USM. RF800mm F5.6L IS USM and RF1200mm F8L IS USM have the same "extended range lens group".

When DJI launched the Wu 2 drone and the Zen X7 pan-top camera, DJI also released a set of fixed-focus lenses with its own DL bayonet. The four products use a unified carbon fiber shell with the same size, the same filter size and similar weight. In addition to 16Universe 2.8, which only supports APS-C frames, 24max 2.8, 35max 2.8 and 50 ram 2.8 all support full frame, which can be used in DJI Ronin 4D full-frame cinema machine.

Panasonic Lumix S series F1.8 fixed focus lenses all have the same body size, filter caliber and approximate weight. The experience of shooting with the stabilizer is optimized to the maximum.

In fact, SAMYANG movie shots are not within the scope of this article, but SAMYANG's new V-AF lens really has a lot to say.

-it is the first set of movie / video lenses that support autofocus

-standardized color balance

-the size, weight, filter caliber and focus ring position are exactly the same.

-there are two Tally lights on the front and side of the lens to display the recording status.

-there are bayonets and contacts in front of the lens, which can be matched with exclusive accessories to be released later.

In March of 2021, Sony released three compact G lenses, namely, the FE 24ax 2.8G, the FE 40Compact 2.5G and the FE 50Ligand 2.5G. The three lenses not only have the same size and similar weight, but also have the same position of the focus ring and the aperture ring.

However, the specifications of 40mm and 50mm are so close that no one will buy them all.

Tenglong Tenglong was one of the first brands to improve the reuse rate of camera lens components: the F05x series of macro focusing announced at the end of 2019 not only has basically the same lens body, but also has similar optical designs for 20amp 2.8 and 24max 2.8. In addition to these three lenses, most of Tenglong's other Di III lenses also maintain the filter size of 67mm.

Wei Zhuoshi in the AF lens track, Wei Zhuoshi's progress in recent years is obvious to all. And its full-frame F1.8 fixed-focus "three Musketeers" not only has a similar lens body, but also has a number of almost the same special lenses-domestic lenses have to face many difficulties in raw materials and production, and the optical design of multiplex lenses is also helpless.

This article comes from the official account of Wechat: camera Notes (ID:xjbiji), by Teng Fei et

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