The super wide-angle lens for a new era Batis 2.8/18 Very large field angle and fast autofocus – combined with protection against dust and spray water for reliable photography in all weathers: this is the ideal full-frame lens for landscape, astro and architectural photography.
Technical specifications: Focal length 18 mm Aperture range f/2.8 – f/22 Focusing range 0,25 m (9.8 ″) – ∞ Number of elements/groups 11/10 Angular field, diag./horiz./vert. 99° / 90° / 67° Coverage at close range 227 x 340 mm (8.9 x 13.4″) Filter thread M77 x 0,75 Dimensions (with caps) 95 mm (3.7″) Diameter of focusing ring 78 mm (3.1″) Weight 330 g (0.74 lbs) Camera mounts E-Mount.
Originally developed for SLR cameras in which, due to the mirror box, a long back focal distance is required for short focal lengths (the distance between the back lens element and the film plane must be considerably longer than the focal length), the Distagon lenses (retrofocus design) are also ideal for mirrorless system cameras thanks to their optimized ray path. This also enables excellent image performance with large image angles for digital camera systems without mirrors. Distagon with 11 lens elements in 10 groups Lens made of special glass Lens with aspheric optical surface Aspheric element & special glass "Floating Elements" design.
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