Comparison of Sigma 15mm f/2.8 EX DG Diagonal Fisheye and Sigma 15mm f/2.8 EX Diagonal Fisheye

Attribute	Sigma 15mm f/2.8 EX DG Diagonal Fisheye ×	Sigma 15mm f/2.8 EX Diagonal Fisheye ×
Type	Fisheye Prime	Fisheye Prime
Name	Sigma 15mm f/2.8 EX DG Diagonal Fisheye	Sigma 15mm f/2.8 EX Diagonal Fisheye
Weight (g)	370	370
Image Circle	35mm	35mm
Brand	Sigma	Sigma
APS Equivalent	1.5x: 22.5mm; 1.6x: 24mm	1.5x: 22.5mm; 1.6x: 24mm
Focal Length (mm)	15.00	15.00
Lens Construction	7 elements in 6 groups	7 elements in 6 groups
Diaphragm Blades	7	7
Magnification Ratio (x)	0.26	0.26
Closest Focus (m)	0.15	0.15
Notes	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diagonal Angle of View (degree)	180.00	180.00
Diameter (mm)	73.5	73.5
Length (mm)	65	65