Canon Lens FD 17mm f/4 S.S.C.
Lenses of this focal length used to belong only to the fisheye type. This lens, however, offers linear perspective rendition, as opposed to the curvilinear rendition of a fish-eye. Since astigmatism compensation has been provided, image definition from the center to the corner areas is guaranteed. To prevent field curvature which is likely to occur because of the flare in the lens center when shooting at close distance, the Floating System has been adopted.
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Therefore, there is no added aberration during focusing. In spite of its angle-of-view of 104°, extremely sharp and clear pictures can be obtained throughout the entire focusing range. The design of the lens permits through-the-lens viewing and focusing, and its moderately fast speed gives it added flexibility in low light. This lens can be attached to the camera body without fixing the mirror up. An accessory lens hood is not required because the barrel of the lens.
In the history of Canon lenses, ultra wide-angle focal lengths began with the FL 19mm f/3.5 (see photo at left, below the FD 17mm) that was introduced in August 1964, meant for early Canon SLR cameras made during the 60s and before the arrival of the original Canon F-1 professional camera model.
NOTE:- Info on the NEWER autofocus version
<<< Illustration of the optical construction for both the 17mm (far left) and 20mm (left) lenses.
Canon Lens FD 20mm f/2.8 S.S.C.
Despite its short focal length of only 20mm, it is a typical wide angle lens with a brightness of f/2.8 - the fastest available in its class when it was first introduced. Imagine, Nikon only introduced their Nikkor 20mm f/2.8 which replaced the older f/3.5 version at the early eighties. This lens was of the retrofocus type and has been developed in compliance with the basic conception of the FD lenses that they must be able to render a sharp image from minimum subject distance to infinity. The floating mechanism has been used for focus control and the design of the lens as a whole was very compact.
It has the normal definition power of the wide angle lenses in general and its distortion is satisfactorily compensated, but, on the other hand, due to its large aperture, when its angle of view of 94° is used effectively, it shows its forcefulness in wide-angle photography, be it indoors or outdoor shooting architectures. It can also be applied successfully to photography in which exaggerated perspective is emphasized.
| Back | Canon FDn lenses 17mm or 20mm Focal Length
FD Fisheye 7.5mm f5.6 S.S.C. | FD Fisheye 15mm f2.8 S.S.C. | FD 17mm f4.0 S.S.C. | FD 20mm f2.8 S.S.C. | FD 24mm f1.4 S.S.C. ASPHERICAL | FD 24mm f2.8 S.S.C. | FD 28mm f2.0 S.S.C. | FD 28mm f2.8 S.C. | FD 35mm f2.0 S.S.C. | FD 35mm f3.5 S.C. | FD TS 35mm f2.8 S.S.C. | FD 50mm f1.2 S.S.C. ASPHERICAL | FD 50mm f1.2 S.S.C. | FD 50mm f1.4 S.S.C. | FD 50mm f1.8 S.C. | FD Macro 50mm f3.5 S.S.C. | FD 85mm f1.2 S.S.C. ASPHERICAL | FD 85mm f1.8 S.S.C. | FD 100mm f2.8 S.S.C. | FD Macro 100mm f4.0 S.C. | FD 135mm f2.5 S.C. | FD 135mm f3.5 S.C. | FD 200mm f4.0 S.S.C. | FD 200mm f2.8 S.S.C. | FD 300mm f2.8 S.S.C. FLUORITE | FD 300mm f5.6 S.C. | FL 300mm f5.6 S.S.C. FLUORITE | FD 400mm f4.5 S.S.C. | FL 400mm f5.6 | FD 500mm f5.6 S.S.C. FLUORITE | FD 600mm f4.5 S.S.C. | FL 600mm f5.6 | FD 800mm f5.6 S.S.C. | FL 800mm f8.0 | FL 1200mm f11 S.S.C. | FD Zoom 35-70mm f2.8-3.5 S.S.C. | FD Zoom 100-200mm f5.6 S.C. | FD Zoom 85-300mm f4.5 S.S.C.
Canon FDn lenses
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