The Sigma 15mm ƒ2.8 EX DG Diagonal Fisheye holds a unique position in the Sigma lens lineup. The 15mm is a diagonal fisheye which means the distorted scene is shown full frame within the camera's field of view. Using acute perspectives not seen by the human eye, this lens is an essential for taking eye-capturing images. The large ƒ2.8 aperture makes the 15mm capable of overcoming any lighting situation.
NOTE: In Backscatter's testing, the Sigma 15mm f/2.8 EX DG Fisheye Lens does not allow autofocus with the Nikon FTZ Adapter. Lens can still be used in Manual Focus.
Lens Construction: 7 Elements in 6 Groups
Angle of View: 180°
Number of Diaphragm Blades: 7
Minimum Aperture: f22
Minimum Focusing Distance: 15 cm / 5.9 in
Filter Size (mm): Insertion-type gelatin filter into rear of the lens
Maximum Magnifications: 1:3.8
Dimensions (Diameter x Length): 73.5 x 69 mm / 2.9 x 2.7 in