The Super Speed MKII T1.3 lens set offers its best optical performance with diaphragms above T2.8, achieving contrasting and sharp images.They are very similar to the Master Prime T1.3 series. On the contrary, when working with apertures below this diaphragm, an image with more tendency to sparkles, veils and loss of sharpness is obtained.
The Super Speed T.3 MKII lens set is composed of 5 lenses: 18mm, 25mm, 35mm, 50mm and 85mm. All focal points share the same T1.3 diaphragm and 80mm front diameter. The weights of these lenses are between 1130g and 703g.
The Super Speed t1.3 lenses use a focus and iris ring system similar to the Ultra Prime T1.9 series with 7 circular blades instead of 3 blades like their predecessors the Zeiss Super Speed MKI T1.4.