Fotodiox Pro Lens Mount Adapter for B4 Mount Lenses to Sony Alpha NEX E-Mount Camera Bodies

Let the Pro Lens Mount Adapter for B4 Mount Lenses to Sony Alpha NEX E-Mount Camera Bodies enhance your photography experience. This high-quality, durable adapter is designed to allow you to seamlessly mount a B4 2/3" lens onto any Sony E-Mount NEX camera. Although devoid of corrective optics, this versatile adapter enables you to utilize your invaluable prime lens with your new camera, thereby saving you the expense of investing in new lenses.

Crafted with precision and pristine award standards, our 'Pro' Series adapters are designed to ensure a perfect fit for your camera and lens, and to withstand professional use. The compact design of the adapter ensures there is no "play" between the lens and the camera, thanks to the leaf springs that mimic the camera body. This user-friendly adapter maintains and enhances the professional appearance of your equipment.

Please note that automatic diaphragm, auto-focusing, and other functions may not operate correctly while using this adapter, as it is not electronic. In such cases, the "stop-down mode" will need to be used when metering, since the lens does not have the ability to have its aperture controlled by the camera body. However, infinity focusing is guaranteed.

This adapter is compatible with all Sony Alpha NEX E-mount Camera Bodies, including Sony NEX-3, NEX-5, NEX-C3, NEX-5N, NEX-7, NEX-F3, NEX-5R, NEX-6, Sony NEX-VG10, NEX-VG20, NEX-VG30, NEX-VG900, NEX-FS100, NEX-FS700, NEX-EA50, and FS7. For Sony FS7 and FS700 cameras, simply ensure the use of a B4 lens with a built-in doubler and that the doubler is engaged.

Constructed from anodized aluminum with a smooth surface, this adapter ensures effortless mounting and allows you to use your irreplaceable prime lens with your new camera. Please be aware that on full-frame Sony Alpha E-Mount bodies such as the Sony A7/A7r, most B4 lenses may not cover the full-frame sensor and could cause vignetting.