The Carl Zeiss Pro-Tessar 1:4 f=35mm lens is a high-quality, manual focus lens designed for wide-angle and standard photography. Made in Germany with a durable aluminum exterior, this lens offers a maximum aperture of f/4 and a focal length of 35mm, providing versatility and sharp images. Compatible with Contax/Yashica mount cameras, this lens is a reliable choice for photographers looking for a premium lens with a reputable brand like Carl Zeiss.