RolleiFlex SL 66_Planar 80/2.8. The RolleiFlex SL66 was announced in 1966. At that time, the 6x6 Hasselblad was particularly popular, 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, and a tilt-shift mechanism. 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 mounted on the Rollei has the highest potential. In addition, the lens mount is a double bayonet mount, making it possible to attach the lens in reverse for close-up photography. 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 from use, and the lens optics are clean with no scratches or mold. (Personal opinion) The early RolleiFlex SL models 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 the Hasselblad? It feels like there is more leeway in the image. I used it for product photography of precious metals, cameras, etc. This camera was kept in my collection, so I have maintained it, but I tested it for the listing, and I don't think there are any problems with the images. 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.