Adapter Zhongyi Lens Turbo II N/G-NEX allows you to set the lens mount Nikon F camera format APS-C Sony E mount
Zhongyi company (ZY Optics) has released a Lens Turbo II adapter N/G-NEX, which provides the ability to install lens mount Nikon F camera format APS-C with Sony E. mount Adapter is compatible with lenses lines Ai and G.
The optical design of the adapter includes four elements in four groups. The adapter increases the lens aperture by one step, while reducing the focal length. To find the total of EFR, it is necessary to multiply the source of 1.5 (accounting for crop factor APS-C) and 0,726. For example, a lens with a focal length of 50 mm will have EFR 55 mm, and a lens with a focal length of 35 mm — EGF 38 mm.
According to the manufacturer, the design changes compared to the first version allowed you to move the rear element closer to the image sensor, which has a positive impact on the quality of the image.
An adapter with a diameter of 68 mm and a length of 33 mm and weighs about 180 g.