Comparison of Fujinon XF 16mm ƒ/1.4 R WR and Pentax SMC P-DA 14mm f/2.8 ED IF

Attribute	Pentax SMC P-DA 14mm f/2.8 ED IF ×	Fujinon XF 16mm ƒ/1.4 R WR ×
Magnification Ratio (x)	0.19	0.21
Filter Size (mm)	77	67
Focus Details	Internal with "Quick Shift" AF/MF mechanism	Rear focusing with high-torque coreless DC motor; Manual focus ring has DOF scale
Closest Focus (m)	0.17	0.15
Lens Construction	12 elements in 11 groups	13 elements in 11 groups, including 2 aspherical and 2 ED elements
Length (mm)	69	73
Focal Length (mm)	14.00	16.00
Diaphragm Blades Type	-	rounded
Brand	Pentax	Fujinon
Image Circle	APS-C	APS-C (Fujifilm X-mount)
Name	Pentax SMC P-DA 14mm f/2.8 ED IF	Fujinon XF 16mm ƒ/1.4 R WR
Weight (g)	420	375
Type	Wide Prime	Wide Prime
Notes	Included Accessories: Lens Hood	For Fujifilm X-mount; HT-EBC and Nano GI coating; Weather- and dust-resistant; LH-X16 lens hood sold separately
APS Equivalent	21mm	24mm
Aperture (f)	2.80 - 22.00	1.40 - 16.00
Diaphragm Blades	6	9
Diagonal Angle of View (degree)	90.00	83.20
Diameter (mm)	83.5	73.4