Comparison of Pentax 50mm f/1.4 SDM AW HD D FA* and Sigma 35mm f/1.2 DG DN Art

Attribute	Sigma 35mm f/1.2 DG DN Art ×	Pentax 50mm f/1.4 SDM AW HD D FA* ×
Filter Size (mm)	82	72
Notes	Available AF Mounts: L-Mount, Sony E-Mount; Dust- and splash-proof construction	Dustproof, weather-resistant construction; Electromagnetic diaphragm
Closest Focus (m)	0.3	0.4
Magnification Ratio (x)	0.2	0.18
Type	Wide Prime	Standard Prime
Focus Details	Hypersonic Motor (HSM) with full-time manual focus override; AF/MF switch; Focus Hold button	Ring-type SDM (Supersonic Direct-drive Motor)
APS Equivalent	1.5x: 52.5mm; 1.6x: 56mm	75mm
Diameter (mm)	87.8	80
Image Circle	35mm	35mm
Focal Length (mm)	35.00	50.00
Brand	Sigma	Pentax
Name	Sigma 35mm f/1.2 DG DN Art	Pentax 50mm f/1.4 SDM AW HD D FA*
Weight (g)	1090	910
Aperture (f)	1.20 - 16.00	1.40 - 16.00
Diaphragm Blades	11	9
Diagonal Angle of View (degree)	63.40	47.00
Length (mm)	136.2	106
Diaphragm Blades Type	rounded	-
Lens Construction	17 elements in 12 groups, including 3 SLD and 3 aspherical elements	15 elements in 9 groups, including 3 SLD (Super Low Dispersion) glass elements and 1 aspherical element