Sigma 70-210mm f4-5.6 APO UC (Ultra-Compact)
Launched 1992


From the Press Release from Sigma distributor CZ Scientific:

“The Sigma Corporation is responsible for the recent phenomenal growth in the popularity of Apochromatic Lenses.

Sigma are the largest manufacturer of APO lenses in the world, and as such have made these optically superior lenses affordable to the general enthusiast by reducing the price dramatically.

Sigma have further revolutioised the APO market by drastically reducing the size and weight of their popular 70-210mm APO lens.

The new 70-210mm F4-5.6 APO lens is considerably lighter than its predecessor and, as can be seen from the attached photograph, is not much bigger than a 35mm film carton.”

Lens Construction 14 Elements in 11 Groups
Focal Length 70-210mm
Maximum Aperture Æ’4-5.6
Minimum Aperture f/22 (Æ’32 at 210mm)
Field of View 34-11.5°
Minimum Focus Distance 1.2m
Maximum Magnification 1:4.7
Filter Size 52mm
Diameter 73mm
Length 81.3mm
Weight 450g
SRP at launch: £199 AF, £189 MF
Available Mounts: AF: Minolta, Nikon, Canon

MF: Various TBC