• Independent Aperture Ring&Click, trning the aperture ring to quickly and visibly adjust the aperture, which is more convenient for operation.
• Digital stepping motor(DSM) with excellent focusing algorithm.
• Equipped with 2pcs aspherical lenses, which can effectively compensate various aberration.
• Adopt 3pcs low-dispersion glass lenses and 2pcs ultra-low dispersion glass lenses, which can better suppress chromatic dispersion.
• Adopts internal focusing design, the structure is compact, the size is 66×69mm, and the net weight is only about 260g.