Zeiss 18mm f/2.8 Milvus 2.8/18

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Lens Specifications
Name Zeiss 18mm f/2.8 Milvus 2.8/18
Image Circle 35mm
Type Wide Prime
Focal Length 18mm
APS Equivalent 1.5x: 27mm; 1.6x: 28.8mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 9 (rounded); Nikon version has manual aperture ring which can be de-clicked
Lens Construction 14 elements in 12 groups, including 4 Anomalous Partial Dispersion and 2 aspherical elements; Enhanced Zeiss T* anti-reflective coating
Diagonal Angle of View(Based on image circle) 99.9 degrees
Focus Details Manual focus only
Front Element Rotation No
Zoom System n/a
Closest Focus 0.25m / 0.82 ft.
Magnification Ratio 0.14x / 1:7.4
Filter Size 77mm
Dimensions(Length x Diameter) 90.0mm x 102.3mm / 3.54 in. x 4.03 in. (Nikon version)
Weight 675g / 23.8 oz (Nikon version)
Notes Available lens mounts: Canon EF (ZE), Nikon F (ZF.2); Weather-sealed construction to protect against dust and moisture; Hood and lens caps included.
Typical Online Price US$2,300 (Avail. October 2016)