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The SMC Pentax-A 80–200mm f/4.7–5.6 is a compact manual-focus telephoto zoom lens introduced in the mid-1980s, designed for the Pentax KA mount. It offers a variable aperture from f/4.7 to f/5.6, stopping down to f/22–32, and features a 6-blade automatic diaphragm. Optically, it uses a 9-element, 9-group design with Super Multi-Coating (SMC) to reduce flare and improve contrast. The lens supports 52mm filters, focuses down to 1.2 meters, and achieves a 0.22× magnification ratio. Weighing approximately 330g and measuring 73mm in length, it’s a lightweight and travel-friendly option for photographers seeking reach without bulk. In terms of performance, the lens delivers adequate sharpness in the center when stopped down to f/8–f/11, though it’s noticeably soft wide open, especially at the long end. Chromatic aberration and purple fringing can appear in high-contrast scenes, and bokeh is uninspired, often appearing harsh due to the 6-blade aperture. Distortion is minimal across the zoom range, and color rendering is neutral, though contrast can be low in backlit conditions. Flare resistance is modest, and the lens benefits from a hood when shooting outdoors. While not a high-performance optic, it’s suitable for casual telephoto work such as portraits, nature, and street photography in good light.

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Release Date: 1995
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