RolleiFlex SL 66_Planar 80/2.8 The RolleiFlex SL66 was announced in 1966. At that time, Hasselblad was particularly popular as a 6x6 single-lens reflex camera, so Rollei decided to manufacture the RolleiFlex SL66. The RolleiFlex SL66 differentiated itself by incorporating many unique features not found in Hasselblad, creating Rollei's own 6x6 single-lens reflex camera. A major feature is that it is equipped with a focal plane shutter, allowing the use of any interchangeable lens. Another feature is the bellows attached to the front of the lens with a maximum extension of 50mm, providing tilt and shift capabilities. Because the tilt can be applied at more than 8 degrees, the image circle of the lens is equivalent to a 6x9 format, allowing effective use of the high-resolution central area. The Planar lens equipped on the Rollei is a lens with the highest potential. In addition, the lens mount is a double bayonet mount, making it possible to perform close-up photography by attaching the lens in the reverse direction. The viewfinder is also bright, and mirror shock is greatly reduced, so there is less worry about camera shake. There are almost no scratches on the camera and lens due to use, and the lens optics are clean without scratches or mold. (Personal opinion) The early models of the RolleiFlex SL type have a simple structure, so they are less prone to failure and require less maintenance. Regarding the Carl Zeiss lens of the RolleiFlex, is it the difference in the size of the image circle compared to the Carl Zeiss of Hasselblad? I feel that the image has more leeway. I used it for product photography of precious metals, cameras, etc. This is a camera I kept in my collection, so I have maintained it, but I tested it before listing it, and I don't think there are any problems with the image quality. Since it is a camera from nearly 60 years ago, please refrain from purchasing if you are overly concerned. The photos of the RolleiFlex SL66 were taken with another SL 66 80mm F2.8 Planar EOS ver. If you are interested in this lens, please feel free to comment. Thank you for your consideration.