Comparison of Pentax 35mm f/2.4 AL SMC DA and Sigma 30mm F2.8 EX DN

Attribute	Pentax 35mm f/2.4 AL SMC DA ×	Sigma 30mm F2.8 EX DN ×
Filter Size (mm)	49	46
Notes	KAF bayonet mount, SP coating	Lens mounts: Sony E-Mount, Micro Four Thirds. Sigma's Super Multi-Layer Coating.
Closest Focus (m)	0.3	0.3
Magnification Ratio (x)	0.17	0.12
Type	Standard Prime	Standard Prime
Focus Details	AF with manual focus support	Inner focusing with linear AF motor
APS Equivalent	52.5mm	1.5x: 45mm; 2.0x: 60mm
Diameter (mm)	63	60.6
Image Circle	APS-C	APS-C
Focal Length (mm)	35.00	30.00
Brand	Pentax	Sigma
Name	Pentax 35mm f/2.4 AL SMC DA	Sigma 30mm F2.8 EX DN
Weight (g)	124	135
Aperture (f)	2.40 - 22.00	2.80 - 22.00
Diaphragm Blades	6	7
Diagonal Angle of View (degree)	44.00	39.60
Length (mm)	45	38.6
Diaphragm Blades Type	-	rounded
Lens Construction	6 elements in 5 groups, including 1 aspherical element	7 elements in 5 groups, including 2 aspherical elements