Comparison of Fujinon XF 16mm ƒ/1.4 R WR and Pentax SMC P-FA 24mm f/2

Attribute	Pentax SMC P-FA 24mm f/2 ×	Fujinon XF 16mm ƒ/1.4 R WR ×
Focal Length (mm)	24.00	16.00
Image Circle	35mm	APS-C (Fujifilm X-mount)
Diaphragm Blades	-	9
APS Equivalent	36mm	24mm
Diameter (mm)	74	73.4
Lens Construction	11 elements in 9 groups	13 elements in 11 groups, including 2 aspherical and 2 ED elements
Magnification Ratio (x)	-	0.21
Weight (g)	405	375
Notes	-	For Fujifilm X-mount; HT-EBC and Nano GI coating; Weather- and dust-resistant; LH-X16 lens hood sold separately
Filter Size (mm)	67	67
Aperture (f)	2.00 - 22.00	1.40 - 16.00
Length (mm)	66	73
Diaphragm Blades Type	-	rounded
Brand	Pentax	Fujinon
Closest Focus (m)	0.3	0.15
Name	Pentax SMC P-FA 24mm f/2	Fujinon XF 16mm ƒ/1.4 R WR
Focus Details	-	Rear focusing with high-torque coreless DC motor; Manual focus ring has DOF scale
Type	Wide Prime	Wide Prime
Diagonal Angle of View (degree)	84.00	83.20