About this item 

• 【Lens Design】7artisans T1.05 series lenses are all use of all-metal materials ensure that the optical components inside the lens will not be damaged by daily small rubbing and use in harsh environments. Its optical system consists of 11 elements in 8 groups, including 2 extra-low dispersion, which can effectively suppress colour differences.
• 【Multi-layer Coating】The front lens has an HD multi-layer coating to suppress flare and ghosting for greater contrast and colour fidelity when working in strong lighting conditions.
• 【270° Long Focus Throw】The gear-shaped focus ring edge is combined with various follow focus device to quickly follow focus during the shooting and video filming. Keeps the picture consistent and reduces the impact on the creation of continuous video footage.
• 【Declicked Large Aperture Design】Bright T1.05 maximum aperture is a declicked aperture design, which is well-suited for low-light situations and provides a shallow depth of field for a more cinematic look. With the 13 iris blades contributing to a pleasing bokeh quality, the picture maintains high-definition image quality from the centre to the edges.
• 【Wide Compatibility】It is compatible with L Mount for Sigma ,Leica L.... 

  Specification:
  Focal Length(Package Includes): 35mm
  Maximum Aperture: T/1.05
  Minimum Aperture: T/16
  Diaphragm Blades: 12
  Format Compatibility: APS-C
  Optical Design: 11 Elements in 8 Groups
  Minimum Focus Distance: 37cm
  Focus Type: Manual Focus
  Image Stabilization: None
  Angle of View: 44°
  Aperture Ring: Click-less aperture ring
  Filter Size: 82 mm (Front)
  Weight: About 753g
  Size: 89.6*85mm