K&F Concept is a professional camera accessory manufacturer that offers premium products. The brand's latest product is a Pentax PK lens to Sony NEX Mount Camera Adapter, made of high-quality metal components for a tighter, more durable fit.

The adapter is precision-engineered to ensure a perfect fit, allowing for infinity focus and manual diaphragm control of the lens. Crafted from brass and aluminum, not plastic, the adapter features a smooth, anodized aluminum surface for effortless mounting. Its lightweight yet sturdy construction is designed for long-lasting use.

Compatible with a wide range of Sony E-mount cameras, including the a6500, NEX-3, NEX-5, NEX-6, NEX-7, a6000, a5000, a3500, and a3000, this adapter allows Pentax K/PK lenses to be used with the Sony Alpha NEX system. However, it is not compatible with the Sony a7S, a7 II, a7S II, or a7R II models.

Please note that the infinity focus position, denoted by the "∞" mark on the lens, may be slightly shifted to the positive side to accommodate focus adjustments due to temperature changes. It is recommended to always check the focus through the viewfinder, even when shooting at infinity.

With its premium construction, smooth mounting, and compatibility with a variety of Pentax and Sony camera models, the K&F Concept Pentax PK to Sony NEX Adapter is a reliable and versatile accessory for photographers looking to expand their lens options.

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