Smc Pentax-A 400mm F/5.6

Specifications01

MountPENTAX K

Focal length400mm

Max aperturef/5.6

TypeTelephoto · Prime

Release year1984

Weight1240 g

Filter size77 mm

Min focus distance2.8 m

Max magnification0.2101

Aperture blades9

Optical elements7

Groups6

AutofocusNo

StabilizationNo

Aperture controlAperture ring (Manual settings + Auto Exposure setting)

Lens hoodBuilt-in telescopic round

TeleconvertersPentax Rear Converter-A 1.4X-L→ 560mm F/7.8 Pentax Rear Converter-A 2X-L→ 800mm F/11.2 Pentax Rear Converter-A 2X-S→ 800mm F/11.2

EraFilm era

Production statusDiscontinued

Additional Info02

Lens TypeSuper telephoto prime lens

Field Notes02

Pentax-A 400mm f/5.6 is a K-mount fixed (prime) telephoto lens intended for distant subjects such as sports and wildlife. It has a maximum aperture of f/5.6.

AI-assisted summary — verify against linked sources

Catalog note · source: thelensdb

Sources03

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Other Mounts03

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