Russian Optical Company Shvabe Unveils Four New Mirror Lenses
Russian optics company Shvabe Holding, which is known as the owner of the Zenitar brand, has announced four new mirror lenses: the MC Rubinar 1000mm f/10, 500mm f/8 Macro, 500mm f/5. 6 Macro, and 400mm f/4. petapixel.com »