posted October 05, 2015 04:02 AM
Basically a wide angle. Wittner Cinetec translation:
The legendary Schneider UWL III shortened by about -9.5 diopters the focal length by almost half. With 7mm basic focal length so 4mm super wide angle can be achieved! For many S8 and 16mm lenses suitable (eg Schneider 1.4 / 7-56mm, 1.4 / 7-80mm, 1.8 / 6-66mm, 1.4 / 6-70mm). They are used in the macro setting. Polycarbonate, aspherical ground and polished metal frame, black, double threaded fitting for M62 and M67. Custom-made, remanufakturiert at Wittner Cinetec.