Sigma Super-Wide II 24mm f/2.8 – MF Wide Prime – Pentax K Mount – Excellent

Description:
Sigma Super-Wide II 24mm f/2.8 manual-focus lens for Pentax K mount, in excellent condition. This compact wide-angle prime is renowned for its sharp center performance, unique rendering, and close-focusing capability. Multi-coated optics and a fast f/2.8 aperture make it ideal for landscapes, street photography, and creative wide-angle compositions.

Originally released in the late 1980s and produced into the 1990s, this lens was available in multiple mounts and is highly regarded for its value and performance. The Pentax KA version includes an “A” setting on the aperture ring, enabling full automation on compatible Pentax DSLRs.

Excellent Condition

Key Features:

• Focal Length: 24mm
• Maximum Aperture: f/2.8
• Mount: Pentax K (KA variant with “A” setting)
• Optical Design: 8 elements in 7 groups
• Minimum Focus Distance: ~0.18m (macro-style close focus)
• Maximum Magnification: ~0.14×
• Filter Thread: 52mm
• Aperture Blades: 6
• Focus: Manual
• Build: Metal barrel with plastic aperture ring (later versions)
• Weight: ~230g
  

Included:

• Sigma Super-Wide II 24mm f/2.8 lens (Pentax K mount)
• Front and rear caps
  

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Collector Notes:
This lens is praised for its sharpness in the center even wide open, with best results at f/8–f/11 for landscapes. Field curvature can soften corners on digital sensors, but film shooters may find it more forgiving. The close-focus capability (~18cm) adds versatility, and the bokeh has a quirky, almost painterly character. Build quality varies slightly across production runs, with earlier versions featuring more metal. A hidden gem in the vintage wide-angle category.