Sigma 35mm f/2 DN OS Art lens patented for M4/3s

Sigma has patented 35mm f/2 DN OS Art prime lens for Micro Four Thirds cameras, further silencing the rumors that the company will no longer launch optics for this type of cameras.

A while ago, Sigma confirmed what the entire world already knew: it stopped developing Four Thirds lenses. This has led to speculation that the third-party lens manufacturer will also stop manufacturing optics for the Micro Four Thirds format.

There have been a few signs that the Japan-based company will not do this, including a patent for a 25mm f/1.2 lens. Now, another optic has been patented by Sigma for Micro Four Thirds users. It consists of an Art-series optic with a focal length of 35mm and a maximum aperture of f/2.

This is the internal design of the Sigma 35mm f/2 DN OS Art lens for Micro Four Thirds cameras.

Sigma 35mm f/2 DN OS Art lens patented in Japan for Micro Four Thirds cameras

Fans of both Sigma and the Micro Four Thirds system could be in for a few treats in the near future. One of them is the Sigma 35mm f/2 DN OS Art lens, which has been patented in Japan.

The lens is designed for mirrorless cameras with Micro Four Thirds sensors. It has a bright aperture so it will be useful indoors or outdoors when the lighting is not ideal. Moreover, it comes packed with an optical image stabilization technology to further improve its low-light capabilities.

As usual, photographers will have to consider the crop factor, meaning that the optic will offer a full-frame focal length equivalent of 70mm. It falls into the short telephoto category, so the presence of the aforementioned image stabilization system is welcomed once again. This way, if it becomes available on the market, then the Sigma 35mm f/2 DN OS Art lens will be useful for portrait photography, too.

Sigma’s 35mm f/2 DN OS Art lens to employ inner focusing mechanism

The patent application is revealing that the lens comes with nine elements in eight groups. An inner focusing mechanism is present in the design, therefore the front element will not move when focusing.

This optic will measure about 58mm, so it will not be a big lens. In fact, it will be quite small and it is likely that its weight will be kept under control, allowing mirrorless users to focus on capturing photos than to be annoyed by its mass.

The Sigma 35mm f/2 DN OS Art lens patent was filed on November 21, 2013, while its approval was granted on June 4, 2015. There are no release date indications from the rumor mill, albeit we should not be surprised if we hear more about it within the next 12 months.