Hood
Built-in retractable
Focus
Manual
Available mounts
Fixed mount — M42, Nikon F, or Canon FL
Format
35mm full frame
Groups
3
Country
Japan
Made By
Kino Precision
Elements
4
Oem Note
Vivitar was Ponder & Best's house brand and made nothing; this variant was built by Kino Precision. Serial prefix 40/41 is a pre-1970 Kino factory serial — it predates Vivitar's ~1970–1990 OEM serial-code scheme, so "41" is NOT a Vivitar code.
Filter Thread
52mm
Confidence
medium-high (identity + optics corroborated; weight/coating unpublished)
Production
1968–early 1970s (end unverified)
Stabilized
No
Max Aperture
f/3.5
Min Aperture
f/32
Min Focus Distance
180cm
Weather Sealed
No
Aperture Blades
6
Introduced
1968
Focal Length (Max)
135mm
Focal Length (Min)
135mm