Comparison of Canon EF 135mm f/2.8 Soft Focus and Pentax 100mm f/2.8 Macro SMC D FA WR

Attribute	Canon EF 135mm f/2.8 Soft Focus ×	Pentax 100mm f/2.8 Macro SMC D FA WR ×
Diagonal Angle of View (degree)	18.00	24.50
Filter Size (mm)	52	49
Aperture (f)	2.80 - 32.00	2.80 - 32.00
Closest Focus (m)	1.3	0.3
Magnification Ratio (x)	0.12	1
Notes	-	Simplified Weather-resistant Construction; Included Accessories: Hood, Case and Lens Cap
Type	Telephoto Prime Soft Focus	Telephoto Prime (Macro)
APS Equivalent	216mm	150mm
Diaphragm Blades	6	8
Image Circle	35mm	35mm
Focal Length (mm)	135.00	100.00
Brand	Canon	Pentax
Name	Canon EF 135mm f/2.8 Soft Focus	Pentax 100mm f/2.8 Macro SMC D FA WR
Weight (g)	390	340
Diameter (mm)	69	65
Length (mm)	98	80.5
Front Element Rotation	-	-
Focus Details	Inner focusing	Quick-Shift Focus System
Diaphragm Blades Type	-	rounded
Lens Construction	7 elements in 6 groups, including 1 aspherical element; Super Spectra coatings	9 elements in 8 groups