Canon FD 100-300mm f/5.6 - Canon FD Mount

The Canon FD 100-300mm f/5.6 is a long-reach telephoto zoom lens designed for the manual focus FD mount. It features a one-touch push-pull design for controlling both zoom and focus simultaneously. This lens is well-suited for wildlife and sports photography where significant magnification is required, offering a consistent maximum aperture throughout the zoom range. Examine the push-pull mechanism for 'zoom creep' or excessive looseness when the lens is tilted. SDS pays close attention to the internal optics, as these larger zooms are prone to accumulating dust and haze over decades. The tripod collar, if present, should be checked for secure locking, and the aperture blades must be dry and responsive to ensure accurate exposures.