Comparison of Fujinon XF 23mm f/2 R WR and Pentax SMC P-FA 35mm f/2 AL

Attribute	Pentax SMC P-FA 35mm f/2 AL ×	Fujinon XF 23mm f/2 R WR ×
Magnification Ratio (x)	0.17	0.13
Filter Size (mm)	49	43
Focus Details	AF (screwdrive)	Internal AF via stepping motor
Closest Focus (m)	0.3	0.22
Lens Construction	6 elements in 5 groups, including 1 aspherical element	10 elements in 6 groups, including 2 aspherical elements
Length (mm)	45.7	51.9
Focal Length (mm)	35.00	23.00
Diaphragm Blades Type	-	rounded
Brand	Pentax	Fujinon
Image Circle	35mm	APS-C (Fujifilm X-mount)
Name	Pentax SMC P-FA 35mm f/2 AL	Fujinon XF 23mm f/2 R WR
Weight (g)	196	180
Type	Wide Prime	Wide Prime
Notes	-	For Fujifilm X-mount; Weather and dust resistant; Included Accessories: Lens caps, lens hood and wrapping cloth; Initially available in Black only.
APS Equivalent	53.5mm	35mm
Aperture (f)	2.00 - 22.00	2.00 - 16.00
Diaphragm Blades	6	9
Diagonal Angle of View (degree)	63.00	63.40
Diameter (mm)	63.5	60