K&F Concept IV PRO Lens Adapter for Pentax to Sony-E NEX Mount

Product Description: Unleash Endless Possibilities

K&F CONCEPT offers a diverse range of over 300 lens adapter rings, seamlessly bridging different sizes of lenses and cameras. Crafted with professional design and precision, our lens adapter rings empower photographers to breathe new life into their old lenses. Staying connected to all your powerful tools has never been this easy.

Function & Note: This lens adapter allows you to mount your Pentax K AF screw-mount lens onto your Sony E-mount camera. Please note: A 'No Lens Attached' warning message may appear. The position of the infinity mark [∞] on the telephoto lens is slightly shifted to the positive side, enabling focus adjustment even when temperature changes cause a focus shift. The shift range is denoted by an L-shaped line. Be sure to check the focus through the viewfinder, even when shooting at infinity.

High Precision: This lens adapter's high-tolerance precision craftsmanship ensures a smooth and secure connection between your lens and camera, allowing for adjustable and focused use of your Pentax K AF screw-mount lenses on Sony E-mount cameras.

Instructions for Use: Attention: - This is a manual adapter without autofocus or aperture ring. - Install skillfully, without using excessive force. - Adapting an APS-frame lens to a full-frame camera may cause vignetting; some cameras can correct this by adjusting the APSC setting. - Adapting a full-frame lens to an APS-frame camera provides excellent edge-to-edge sharpness, and the smaller image field helps minimize lens distortion and aberration by using the 'sweet spot' or center of the larger lens image circle. This will also magnify the focal length by 1.6x on Canon, 1.5x on Nikon and Sony, and 2.0x on M4/3 cameras.

Infinity Focus Position: The position of the infinity mark [∞] on the telephoto lens is slightly shifted to the positive side to enable focus adjustment, even when temperature changes cause a focus shift. The shift range is denoted by an L-shaped line; be sure to check the focus through the viewfinder when shooting at infinity.

Matte Varnish Interior Design: The internal matte-black finish reduces glare and reflections of light coming through the lens, ensuring you capture perfect exposures.

Manual Focus: Manual focus is achieved without electronic contacts. By using this mount adapter, you can manually adjust both the focus and the aperture.

Unique Design: The 4th-generation lens mount features a knurled design with non-slip treatment on key points, making it easier to hold. The fine CNC machining enhances the overall texture.

Material & Features: - High-quality copper and aluminum alloy - High precision and durable construction, with smooth installation and removal - Matte varnish interior to avoid light reflection

Compatible Mounts: (1) Lens Mount: Pentax K Series and AF Series (2) Camera Mount: Sony E-mount (3) Compatible Models: Sony Alpha a7, a7R, a7S, a7 II, a7R II, a7S II, a3000, a5000, a6000, a6300, a6500, a3500, a5100, aQX1, PXW-FS7, and various NEX and NEX-VG series cameras.

Pre-Purchase Verification: Please ensure your lens mount and camera mount are compatible before making a purchase to avoid unnecessary returns. We are available to assist you if you have any questions about the adapters.

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