Comparison of Pentax SMC P-FA 35mm f/2 AL and Sony FE 28mm ƒ/2 SEL28F20

Attribute	Sony FE 28mm ƒ/2 SEL28F20 ×	Pentax SMC P-FA 35mm f/2 AL ×
Filter Size (mm)	49	49
Aperture (f)	2.00 - 22.00	2.00 - 22.00
Closest Focus (m)	0.29	0.3
Magnification Ratio (x)	0.13	0.17
Type	Wide Prime	Wide Prime
Focus Details	Autofocus with advanced linear actuator; inner focusing	AF (screwdrive)
APS Equivalent	42mm	53.5mm
Notes	Sony FE-Mount; Included accessories: lens hood, front and rear lens caps.	-
Image Circle	35mm (Full-frame E-Mount)	35mm
Focal Length (mm)	28.00	35.00
Brand	Sony	Pentax
Name	Sony FE 28mm ƒ/2 SEL28F20	Pentax SMC P-FA 35mm f/2 AL
Weight (g)	200	196
Diagonal Angle of View (degree)	75.00	63.00
Diaphragm Blades	9	6
Diameter (mm)	64	63.5
Length (mm)	60	45.7
Diaphragm Blades Type	rounded	-
Lens Construction	9 elements in 8 groups, including 3 aspherical and 2 ED elements	6 elements in 5 groups, including 1 aspherical element