Avenon Super Wide 21mm F/2.8 LSM

Specifications01

MountM39

Focal length21mm

Max aperturef/2.8

TypeWide · Prime

Release year1994

Weight225 g

Min focus distance1 m

Aperture blades6

Optical elements8

Groups6

AutofocusNo

StabilizationNo

Aperture controlAperture ring

Lens hoodScrew-type round

Production statusDiscontinued

Additional Info02

Lens TypePrime lens

Field Notes02

21mm f/2.8 super-wide lens for M39 mount, intended for wide-angle landscape/architecture and low-light use. Likely a fixed-focal prime with manual/early-DSLR style specs.

AI-assisted summary — verify against linked sources

Catalog note · source: thelensdb

Sources03

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Other Mounts03

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