Black Lens structure (elements/groups): 6/5 Maximum aperture number: 32 Closest focusing distance: 0.5 m Manual focus This is a Tilt and Shift lens TS-E90mm f/2.8- Focal length and maximum aperture: 90 mm f2.8- Lens construction: 6 elements in 5 groups- Diagonal angle of view: 51°- Focus adjustment: Manual focus, overall linear extension system- Closest focusing distance: 0.5m / 1.6ft- Filter size: 58mmThis is the world's first 35 mm-format 90 mm lens with tilt and shift movements. Gaussian optics give high-quality delineation and true background blur. The lens is suited for a variety of subjects, from products to portraits. Lens system Closest focusing distance 0.5 m Maximum aperture number 32 Number of diaphragm blades 8 Fixed focal length 90 mm Lens viewing angle, diagonal 51° Lens structure (elements/groups) 6/5 Performance Manual focus Yes Design Product colour Black Weight & dimensions Weight 565 g Length 88 mm Filter size 58 mm Diameter 7.36 cm Other features Magnification 0.29x