“All ZEISS Interlock industrial lenses feature an improved fixture for focus and aperture which is also reflected in the new name: ZEISS Interlock,” says Till W. Bleibaum, Product Manager for Industrial Lenses at ZEISS Camera Lenses. “The additional optimization of the lens coating further reduces ghosting and flare effects in critical light situations.”
The three new lenses are meant to replace their Distagon T* 2.8/21, Makro-Planar T* 2/50 and Makro-Planar T* 2/100. Zeiss specifically notes that these lenses are not intended for general photography, and are likely not going to be easily accessible to your average photographer. That said, these could be used on any Nikon DSLR or most mirrorless cameras with an adapter if you wanted to play with them (though I don’t see any real benefit other than for the heck of it). They also might be attractive to you if you happen to have a large format film camera that you like to shoot every now and then.
The new Interlock series lenses will go on sale July 1st, and will be available through established Zeiss Industrial lens partners. Prices for the Interlock 2.8/21, Interlock 2/50, and Interlock 2/100 lenses was not announced, but one would assume that when they go on sale tomorrow the pricing will be apparent.