The Quantaray 28mm f/2.8 for Pentax K-mount is a budget-friendly, vintage wide-angle prime lens. Most versions of this lens were manufactured by Sigma for the Quantaray brand and are recognized for providing solid performance for their price point.
Lens Specifications:
Focal Length: 28mm (Wide-Angle).
Maximum Aperture: f/2.8, suitable for low-light photography and creating moderate depth-of-field.
Focus Type: Manual focus only.
Mount Compatibility: Pentax K-mount (available in variants like SMC, SMC-M, and Pentax KA/SMC-A).
Filter Size: 52mm.
Construction: Features glass optics and a durable metal or high-quality plastic barrel.