Comparison of Canon EF-S 10-18mm ƒ/4.5-5.6 IS STM and Pentax SMC P-FA J 18-35mm f/4-5.6 AL

Attribute	Canon EF-S 10-18mm ƒ/4.5-5.6 IS STM ×	Pentax SMC P-FA J 18-35mm f/4-5.6 AL ×
Notes	Image Stabilization (up to 4 stops correction).	Distance scale, petal-shaped lens hood
Magnification Ratio (x)	0.15	0.18
Filter Size (mm)	67	67
Length (mm)	72	71
Closest Focus (m)	0.22	0.28
Diagonal Angle of View (degree)	74.30 - 107.50	63.00 - 100.00
Focus Details	Rear focusing using Stepper Motor (STM); Full time manual focus	Dedicated AF/MF
Focal Length (mm)	10.00 - 18.00	18.00 - 35.00
APS Equivalent	16 - 29mm	27 - 52.5mm
Brand	Canon	Pentax
Image Circle	APS-C	35mm
Name	Canon EF-S 10-18mm ƒ/4.5-5.6 IS STM	Pentax SMC P-FA J 18-35mm f/4-5.6 AL
Weight (g)	240	190
Type	Wide Zoom	Wide Zoom
Aperture (f)	4.50 - 29.00	4.00 - 32.00
Diaphragm Blades	7	6
Diaphragm Blades Type	circular	-
Lens Construction	14 elements in 11 groups, including 1 UD and 1 aspherical element, enhanced coatings	12 elements in 10 groups
Zoom System	Rotary	Rotary
Diameter (mm)	74.6	67.5