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Specification

Source of data

• Vivitar Automatic T-4 Lens System booklet (June 1971).

From the editor

Has the same optical design as the SOLIGOR WIDE-AUTO 1:3.8 f=21mm (T-4).

Notes

• Independent-brand lenses were made for 35mm film SLR cameras by companies that competed with the camera manufacturers. Some came from factories that made lenses under their own brand names (Angenieux, Kiron, Sigma, Tamron, Tokina). Many others were national and international marketing organizations (Kalimar, Panagor, Rokunar, Soligor, Starblitz) that bought lenses from anonymous manufacturers. One firm — Vivitar — actually designed its own lenses and accessories, which were then subcontracted to manufacturing firms. Still others were private labels, sold only by specific photo specialty shops (Cambron, Quantaray, Spiratone).
• The actual manufacturer of a Vivitar lens can be identified by the first digits of the serial number: 09 - Cosina, 13 - Schneider-Kreuznach, 19 - Sigma, 22 - Kino Precision Industries, 25 - Ozone Optical, 28 - Komine, 32 - Makina Optical, 33 - Asanuma, 37 - Tokina, 42 - Eugen Bauer, 44 - Perkin Elmer, 47 - Chinon, 51 - Tokyo Trading, 56 - Kyoe Shoji, 61 - Samyang, 6x - Olympus, 75 - Hoya, 77 - Kobori, 81 - Polar, 9x - Cosina. This numbering system, however, was used by Vivitar only between 1969 and 1991 (approx.).
• This Vivitar lens has s/n 37xxxxxxx, therefore it was produced by Tokina.

Lenses with similar focal length