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zoom35mmdiscontinued

SMC Pentax-A 70-210mm f/4

Pentax · 1984-1996

Versatile telephoto zoom with constant aperture. Good for events.

Known for

  • Events
  • Wildlife
  • Sports

Considerations

  • Heavy
  • Slow aperture

Optical Characteristics

Sharpness (wide)
4/5
Sharpness (stopped)
5/5
Contrast
4/5
Flare Resistance
4/5
CA Control
3/5
Vignetting Control
3/5
Distortion Control
4/5

Common Issues

  • Check for fungus
  • Inspect aperture blades

Buying Guide

Specifications

MountPentax K
Focal Length70-210mm
Max Aperturef/4
Min Aperturef/32
Aperture Blades7
Filter Size58mm
Weight670g

Optical Design

FormulaTelephoto
Elements14
Groups10
CoatingSMC (Pentax)

Pricing

£80 - £150

Typical used price

Mint: ~£200

Adapts To

Sony EFujifilm XCanon RFMicro Four Thirds

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Last verified: Jan 2026Report an error
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