Schneider-Kreuznach 1004157 Helical Focus Mount (UNIFOC 100 77 D02) is a precision manual focusing accessory with an adjustable length of 136–238 mm. This helical mount translates rotation into smooth axial movement, enabling fine focus control for compatible Schneider-Kreuznach optical systems. The 1004157 part number identifies this specific UNIFOC helical focusing solution, designed to maintain alignment and reliable performance in demanding imaging setups.
