Technical Details
Professional cine super telephoto lenses achieve focal lengths from 300mm to 2000mm with apertures between T2.8 and T8. The Cooke Anamorphic/i 300mm T2.3 weighs 8.2kg, while the Canon CN20 50-1000mm T5.0-8.9 Cine-Servo is 3.8kg. Internal Focusing (IF) prevents changes in length during focusing, and floating elements compensate for spherical aberrations. Modern designs utilize ED (Extra-low Dispersion) glass and fluorite lenses to reduce chromatic aberration. Cinema optics offer standardized 114mm front diameters for matte box systems and 0.8 module gears for follow focus systems.
History & Development
Nikon introduced the first commercial 1000mm mirror lens in 1959, followed by Zeiss in 1963 with the Mirotar 500mm. The film industry initially adapted super telephotos from sports and nature photography. In 2008, Cooke developed the S4/i 300mm T2.8 specifically for cinema applications, and Fujinon followed in 2012 with the Cabrio series of variable cine zooms up to 850mm. Cameras like the RED Komodo (6K, Super 35) can also record in smaller sensor windows (5K, 4K, 2K), which narrows a telephoto's angle of view further without changing the perspective.
Practical Use in Film
Super telephotos enable extreme close-ups from a safe distance from pyrotechnics or dangerous stunts. The great distance dramatically isolates subjects from their surroundings, while the shallow depth of field at wide apertures creates cinematic isolation. Disadvantages: Camera shake is exponentially amplified, and gimbal systems reach their weight limits.
Comparison & Alternatives
With standard telephoto lenses (85-200mm), the camera distance usually stays within the bounds of a set; super telephotos from 300mm onwards force such great distances that spatial perception looks markedly alienated. Crop sensors like the ALEXA Super35 extend effective focal lengths by a factor of 1.3-1.5. Modern alternatives include digital zoom functions in 8K cameras or extender systems that increase existing focal lengths by a factor of 1.4x or 2x. Mirror lenses (catadioptric) achieve extreme focal lengths in a compact design but produce characteristic ring bokehs and fixed apertures.