New FD Lenses

Zoom

New FD20-35mm f/3.5L

  • Specifications
Marketed April 1984
Original Price 190,000 yen
Lens Construction (group) 11
Lens Construction (element) 11
No. of Diaphragm Blades 6
Minimum Aperture 22
Closest Focusing Distance (m) 0.5
Maximum Magnification (x) 0.083
Filter Diameter (mm) 72
Maximum Diameter x Length (mm) 76.5 x 84.2
Weight (g) 470

This is an upgrade of the FD24-35mm f/3.5L (released in February 1978), which was a popular high-end zoom lens. Through the effective use of aspherical optical systems, an ultra-wide angle of 20mm has been achieved while maintaining image quality equivalent to a single lens.

By making the surface of the first lens element aspherical, the various aberrations such as distortion occurring with a wider angle of the zoom lens can be corrected. Furthermore, the use of a movable flare stopper for cutting unnecessary incident light flux that reduces image quality by linking with the movement of the optical system and a floating mechanism for reducing aberration resulting from shooting distance provide uniform brightness, high contrast and a high degree of expression.