Comparison of Canon EF 90-300mm f/4.5-5.6 and Pentax SMC P-FA J 75-300mm f/4.5-5.8 AL

Attribute	Canon EF 90-300mm f/4.5-5.6 ×	Pentax SMC P-FA J 75-300mm f/4.5-5.8 AL ×
Magnification Ratio (x)	0.25	0.3
Filter Size (mm)	58	58
Focus Details	Internal; Micro motor	Dedicated AF/MF
Closest Focus (m)	1.5	1.3
Lens Construction	13 elements in 9 groups	12 elements in 10 groups, including 1 aspherical element
Length (mm)	114.7	116
Focal Length (mm)	90.00 - 300.00	75.00 - 300.00
Diagonal Angle of View (degree)	8.30 - 27.00	8.20 - 32.50
Brand	Canon	Pentax
Image Circle	35mm	35mm
Name	Canon EF 90-300mm f/4.5-5.6	Pentax SMC P-FA J 75-300mm f/4.5-5.8 AL
Weight (g)	420	385
Type	Telephoto Zoom	Telephoto Zoom
Notes	Accessories: ET-60 lens hood, LP1019 soft case.	-
APS Equivalent	144 - 480mm	112.5 - 450mm
Aperture (f)	4.50 - 45.00	4.50 - 38.00
Diaphragm Blades	7	6
Zoom System	Rotary	Rotary
Diameter (mm)	71	69