Carl ZEISS Jena Flektogon 25mm f/4 wide angle lens. Made in Germany. Serial #5966152. Zebra lens finish. This lens will fit Exakta bayonet lens mount. Scarce high quality heavy duty wide angle lens for Exakta. Will fit Exacta 35mm slr film cameras like the Exa, Kino Exakta, VX, VXIIa, and Topcon cameras that use the Exakta lens mount. Will also work on Topcon Super D cameras. This lens can also be used on most mirrorless digital cameras like the Canon R, Fuji X-Pro3, XT-4, Nikon Z. Olympus Pen F, OM-D5 Mark II, OM-D1 Mark II, Panasonic Lumix G7, G9, GH-4, GH-5, Sony a 6500, Sony a7SII, a7RIII with the proper adapter. Front filter size is 77mm. Minimum focus distance is .65ft.or .2m. Aperture range is f/4 - f/22. Focusing is marked in feet. Lens has a semi-automatic aperture . You push the lever on the side of the lens to close down the lens aperture. Lens is in Ex+ or 8.5 of 10 cosmetic condition. Excellent condition lens barrel with little prior wear. No dings or dents. Fairly clean optics with a few small dust spots inside visible with a flashlight only. Smooth focusing. Smooth working lens aperture. Quite sharp and unusual wide angle lens with good contrast and optical resolution. Hard to find Zeiss Flektogon 25mm lens in Exakta/Topcon mount. With original rear cap & after market front cap. Don't miss this nice scarce Zeiss Flektogon 25mm wide angle lens lens. Sells with NO RESERVE at price of $245. I have lots of more Angenieux and Exakta mount lenses, and other rare lenses in Exakta mount. Also accessories, 35mm Rangefinder cameras and lenses,  Medium and Large Format cameras, on my other Auctions, web page and E-Bay Store.