Pentax SMC-F 35–70mm f/3.5–4.5 – Compact AF Zoom – K-Mount

Description:
Pentax SMC-F 35–70mm f/3.5–4.5 lens in excellent condition, compatible with Pentax K-mount film and digital bodies. Produced between 1987 and 1991, this lens offers a versatile standard-to-short-telephoto zoom range in a compact, lightweight design. Autofocus is screw-driven, and the lens includes an “A” setting on the aperture ring for full Program and Shutter-priority modes on compatible cameras.

Despite its modest specs, it’s praised for sharpness when stopped down, accurate autofocus, and a surprisingly useful macro mode at 70mm with 0.25× magnification. A hidden gem for Pentax collectors and retro shooters.

Excellent condition

Key Features:

• Focal Length: 35–70mm
• Maximum Aperture: f/3.5–4.5
• Mount: Pentax KAF (full-frame and APS-C compatible)
• Optical Design: 8 elements in 8 groups
• Minimum Focus Distance: 0.32m (macro mode)
• Maximum Magnification: 0.25×
• Filter Thread: 49mm
• Aperture Ring: Yes, with “A” setting
• Autofocus: Screw-drive
• Diaphragm: 6 blades
• Weight: ~235g
• Dimensions: 67 × 50mm
  

Included:

• Pentax SMC-F 35–70mm f/3.5–4.5 lens
• Front and rear caps
  

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Collector Notes:
This lens is often overlooked but delivers surprisingly good results, especially on full-frame bodies like the K-1. It’s sharp across the frame when stopped down, and the macro mode adds versatility for close-up work. With its compact size and vintage styling, it’s a great addition to any Pentax kit—whether for film nostalgia or digital experimentation.