Lenses comparison


Manufacturer	Pentax	Pentax	Nikon Nikkor	Sigma	Sony
Model	smc FA 31 mm f/1.8 AL	smc FA 35 mm f/2 AL	AF-S DX 35 mm f/1.8G	30 mm f/1.4 EX DC HSM	DT 35 mm f/1.8 SAM
Lenst style	Wide angle	Wide angle	Normal	Normal	Normal
Focal length	31 mm	35 mm	35 mm	30 mm	35 mm
Maximum aperture	f/1.8	f/2	f/1.8	f/1.4	f/1.8
Angle of view	69.8 ^o	63 ^o	44 ^o	45 ^o	44 ^o
Closest focusing distance	0.3 m	0.3 m	0.3 m	0.4 m	0.23 m
Maximum magnification	1:6.25	1:5.88	1:6.25	1:10.4	1:4
Minimum aperture	22	22	22	16	22
Diaphragm blades	9	6	7	8	7
Auto focus type	AF	AF	SWM	AF HSM	SAM
Lens Construction	9 elements / 7 group	6 elements / 5 group	8 elements / 6 group	7 elements / 7 group	6 elements / 5 group
Filter diameter	58 mm	49 mm	52 mm	62 mm	55 mm
Macro Yes/No	No	No	No	No	No
Stabilization	No	No	No	No	No
Available mounts	Pentax K	Pentax K	Nikon F	Nikon F Sony A / Minolta Sigma Pentax K Four Thirds Canon EF-S	Sony A / Minolta
Dimensions	66 x 68.5 mm	63.5 x 46 mm	70 x 52.5 mm	76.6 x 59 mm	70 x 52 mm
Weight	345 g	195 g	210 g	430 g	170 g
Additional information			One aspherical lens. Anounced: Feb 09, 2009	2 SLD elements and 1 hybrid aspherical lens
Score [max 5.00]	4.80 (5)	4.44 (6)	4.27 (26)	4.21 (11)	4.33 (3)
Our Review	Review	Review	Review	Review	Review