Focus
Manual
Format
35mm full frame
System
Vivitar T4 (Tokina interchangeable mount)
Country
Japan
Made By
Tokina
Filter Thread
72mm
Confidence
roster HIGH (camera-wiki); optical specs (elements/groups/weight/min-focus) UNPUBLISHED = omitted
Stabilized
No
Max Aperture
f/3.8
Weather Sealed
No
Introduced
1969
Focal Length (Max)
21mm
Focal Length (Min)
21mm