MC KALEINAR 5H f/2.8 100mm USSR Lens Nikon Mount RF, Ukraine Lens. The current popularity of the MS Kaleinar-5N 2.8/100 lens is due to the fact that Nikon cameras have not changed their bayonet type for over 50 years. Some cameras of the Kiev brand have the same bayonet as Nikon, which allows using lenses with the designation'N' on modern Nikon digital SLR cameras without any adapters. More details on using old Soviet lenses in the article about Soviet lenses. For those who want to use the MS Kaleinar-5N 2.8/10 on the Canon system, the article about old lenses on Canon will be ...