Fringer EF-FX Ultra (FR-FX071) Lens Adapter Auto Focus with 0.74x Focal Length Reduction - EOS EF Lens for FX Mount Cameras - Improved Light Amplification

•Improved focal length reduction and light amplification (0.74x): The EF-FX Ultra lens adapter is a further development of the EF-FX Pro III and integrates a newly developed optical system with two groups of five lenses each. This reduces focal length and increases effective aperture, achieving near-full-format results on APS-C sensors. For example, an EF 24-70 mm F2.8 lens becomes an approx. 17-51mm F2.0 Lens

•【Full Electronic Control: Auto Focus, Aperture and EXIF Transmission】Support auto focus, electronic aperture adjustment, and transfer lens metadata to the camera's EXIF file. Optimized for over 210 EF lenses of EOS, Tam and Sig for reliable performance with most FX series cameras.

•High-quality optical design with the highest image quality: Fringer's specially developed optical group offers the highest image sharpness down to the edges of the image and minimal distortion in combination with high-quality full-frame EF lenses. It achieves optical peak performance that exceeds many conventional focal length reducers.

•Solid brass/alloy construction with precise manufacturing: The case made of high-quality metal alloy and robust mounting interfaces guarantee long-term use. Provides a secure fit between EF lenses and X-mount cameras, prevents wobbling and ensures stability.

•【Updatable firmware and comprehensive camera compatibility】Supports firmware updates via USB to ensure compatibility with future lenses and FX housing updates. Recommended for X-Trans III/IV/V sensor models for optimal autofocus performance.