Production is 2 months.
The adapter is ideal for shooting widescreen video from 18, 24, 30, 35, 40, 50 mm to APSC format.
It is made in a metal case, optics - glass. The lenses do not have a neutral coating.
The mounting thread is 72/77/82 mm in diameter (under the order). The adapter also has a 95 mm thread for a filter (macro filters can be used for shooting very close objects).
The adapter can focus on lenses from 14 mm to 85 mm.
It is best used for crop cameras, perfect for Canon 40mm 2.8 lens, but it works with a full frame. There is no vignetting on the full frame with a 29 mm focal length and on the crop sensor 1.6 and 1.5 with a 18 mm focal length. The crop 2 sensor (micro 4/3, 16 mm sensor) lacks vignetting at a focal length of 14 mm. But it all depends on the choice of the taking lens of the device. It is desirable that the diameter of the front lens of the taking lens is less than 70 mm.