Sigma 300mm F4.5 APO Telephoto
Launched February 1980

SIGMA 300mm F4.5 Apochromatic Telephoto

Due to the new optical design, the Apochromatic results have been obtained without using Fluorite glass elements (Patent pending). The substantial reduction in colour aberration results in crisp, high contrast pictures images. In addition, the internal focusing mechanism allows for the quick focusing and close focusing capabilities.

Construction 8 Elements in 6 Groups
Focal Length 300mm
Maximum Aperture ƒ4.5
Minimum Aperture ƒ22
Field of View
Minimum Focus Distance 250cm
Number of blades N/A
Maximum Magnification N/A
Zooming System N/A
Filter Size 72mm
Diameter 80mm (max.)
Length 197mm
Weight 1,165g
SRP at launch: N/A
Available Mounts: MF mounts.