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The Sigma 28-80mm f/3.5-5.6 II Macro Aspherical is a lightweight, budget-friendly zoom lens that was popular during the late film and early digital era. For Pentax users, it is a versatile choice for everything from wide-angle landscapes to close-up photography.
Key Specifications & Features:
Focal Length: 28-80mm, providing a standard zoom range.
Aperture: Variable 3.5 at 28mm to 5.6 at 80mm.
Macro Capability: Features a dedicated macro switch that allows for a 1:2 magnification ratio.
Note: The macro mode only engages at the 80mm setting.
Caution: Do not attempt to zoom out while in macro mode, as it can damage the internal plastic components.
Build: Primarily plastic construction with a metal mount in most versions, weighing approximately 250g.
Optical Design: Includes aspherical elements to reduce aberrations and improve sharpness, especially when stopped down.
