Auto Mamiya/Sekor SX 300mm F/5.6

Specifications01

MountM42

Focal length300mm

Max aperturef/5.6

TypeTelephoto · Prime

Weight885 g

Filter size58 mm

Min focus distance4.5 m

Optical elements5

Groups4

AutofocusNo

StabilizationNo

Aperture controlAperture ring (Manual settings only)

Lens hoodBuilt-in telescopic round

TeleconvertersNot available

EraFilm era

Production statusDiscontinued

Additional Info02

Lens TypeSuper telephoto prime lens

Field Notes02

Mamiya/Sekor SX 300mm f/5.6 telephoto lens for M42 mount, intended for distant subjects such as wildlife or long-range portraiture. Fixed maximum aperture of f/5.6.

AI-assisted summary — verify against linked sources

Catalog note · source: thelensdb

Sources03

thelensdb.comVisit ↗

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Other Mounts03

No alternate mounts are indexed for this family yet.