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Discontinued

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Pentax · Pentax K · Lens

SMC Pentax-A 28mm f/2

49mm filter

Used (avg)

~$185

Updated Jul 2026

No longer in production · Available used

Focal length

28mm

Max Aperture

f/2

Filter Thread

49mm

Min Focus Distance

30cm

Mount: Pentax K — compatible with all Pentax K-mount bodies.

Mount

Pentax K

Autofocus

No

Filter Thread

49mm

Max Aperture

f/2

Image Circle

Full Frame

Min Aperture

22

Min Focus Distance

30cm

Introduced

1983

Focal Length (Max)

28mm

Focal Length (Min)

28mm

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