FD specifications
Canon FD is a series of interchangeable camera lenses and mounts developed by Canon for its manual-focus film cameras, predominantly enjoyed throughout the 1970s and 1980s. The FD series is noted for its high quality, robust construction, and innovative optical technologies. The introduction of the FD mount in 1971 coincided with the launch of the Canon F-1, one of the first professional-grade single-lens reflex (SLR) cameras.One of the main features of Canon FD lenses is their exceptional optical performance. Canon employed advanced lens elements, including aspherical lenses and low-dispersion glass, to correct various optical aberrations. This attention to optical quality made FD lenses renowned for their sharpness and contrast, enabling photographers to achieve stunning results in various lighting conditions.
Another significant technology introduced with the FD mount is the "floating rear element" design. This design improves the lens performance at different focusing distances, allowing for versatile shooting options. Additionally, some higher-end lenses incorporate a “bokeh” design, facilitating smooth background blur, which is particularly desirable for portrait photography.
The FD series includes a wide range of focal lengths and aperture sizes, from ultra-wide to super telephoto lenses. Canon's commitment to providing options is evident in their offerings, which range from the compact 24mm f/2.8 to the impressive 400mm f/2.8. Ultra-fast primes with large maximum apertures, such as the 85mm f/1.2, give photographers excellent low-light performance and shallow depth of field control.
A notable characteristic of the Canon FD mount is its full-aperture metering capability, which allows the camera to read the light at the lens’ widest aperture. This system enhances exposure accuracy during shooting, especially in changing lighting conditions. The mount also features a simplistic yet sturdy mechanical design, offering ease of use and longevity.
Although the Canon FD system has been largely replaced by the Canon EF mount in more modern autofocus cameras, many photographers appreciate the manual focus experience and the mechanical quality of FD lenses. Today, FD lenses remain popular among enthusiasts and vintage gear collectors, often used on digital mirrorless cameras with appropriate adapters, allowing a new generation to experience the exquisite optical characteristics and solid build of these classic lenses.