12 blade diaphragm
The 12-blade circular aperture maximizes the beauty captured by this large-aperture prime-lens, contributing to impressive images in which the subject stands out against a smoothly defocused background bokeh as well as naturally rendered points of defocused lightg on an unspecified number of elements to help improve water resistance and minimize chromatic aberration.
Only 369g Ultra-light Design
11 elements in 8 groups
Two extra-low dispersion elements reduce color fringing and chromatic aberrations in order to achieve a high degree of clarity and color accuracy. Nano-crystalline layer achieves the uniform light transmission, which reduces flare and ghosting.
Please kindly note the manual focus lens can't be recogniced by camera unless coming with the camera setting "release without lens"