50mm f1.3 **TV LENS** C Mount BOLEX BMCC Cameras Etc., Unbranded, but appears to be high quality. No dust, scratches or scuffs noted. Please see all pics. Shipped within one day of payment. ******** This is a 50mm f1.3 TV lens designed for C mount cameras, including BOLEX BMCC cameras. It is a manual focus lens with a fixed focal length of 50mm. The lens is suitable for film and video recording. ********** Length: 50mm, a standard focal length often used for general-purpose photography and videography. Aperture: f/1.3, a very wide maximum aperture, allowing for excellent low-light performance and shallow depth of field. Mount Type: C-mount, a common type of lens mount used in older film cameras and some modern video cameras. C-mount lenses have a shorter back focal distance compared to CS-mount lenses. Focus and Aperture Rings: The lens features clearly marked focus and aperture rings, enabling manual control over these settings. The aperture ring shows markings from f/1.3 to f/16 and a "C" marking, which likely stands for "closed." Compatibility: This type of lens is compatible with cameras that use a C-mount, like the BOLEX BMCC. However, it is important to note the difference between C-mount and CS-mount, as they are not directly interchangeable due to differing back focal distances. Image Quality: Designed for standard definition (NTSC or PAL), it may not provide the same level of resolution as lenses designed for higher-resolution formats.