Tokina has announced an updated version of its 400mm f/8 mirror lens that tweaks the optical detain and adds a T-mount system that Tokina says improves the performance of the lens and enables the lens to be used with eight different cameras mounts.

The original version of the lens was announced in July of 2020 and received the Canon RF and Nikon Z mounts this past April. While both old and new versions of Tokina’s 400mm mirror lens share the same fixed focal length and f/8 aperture, the optical arrangement is different. The current 400mm f/8 uses six elements in five groups, but the new one rearranges it into six elements in two groups. Tokina also says that it has changed the mounting system to a T-Mount, which it promises improves performance.

Tokina says that the internal reflection of the T mount is suppressed and the performance of the lens is further improved. Photographers will be able to buy the lens in any of the aforementioned mounts, but it can be easily converted to others as the mounting system is removable and interchangeable. There is not an electrical connection to the camera with this lens, and in some cases, the camera will have to be told to allow shutter release without a lens in order to use it.

The Tokina 400mm f/8 N II S has a six-degree angle of view and is 112mm long for mirrorless and 82mm long for SLR cameras. It also is slightly heavier for mirrorless cameras, weighing in at 545 grams compared to the 500 grams for SLRs. The front element is 67mm and the lens has a minimum focusing distance of 1.15 meters with a maximum magnification of 1:1.25.