Comparison of Pentax 100mm f/2.8 Macro SMC D FA WR and Pentax SMC P-D FA 100mm f/2.8 Macro

Attribute	Pentax SMC P-D FA 100mm f/2.8 Macro ×	Pentax 100mm f/2.8 Macro SMC D FA WR ×
Magnification Ratio (x)	1	1
Front Element Rotation	-	-
Closest Focus (m)	0.3	0.3
Length (mm)	80.5	80.5
Focus Details	-	Quick-Shift Focus System
Aperture (f)	2.80 - 32.00	2.80 - 32.00
Diagonal Angle of View (degree)	24.50	24.50
Image Circle	35mm	35mm
Focal Length (mm)	100.00	100.00
Name	Pentax SMC P-D FA 100mm f/2.8 Macro	Pentax 100mm f/2.8 Macro SMC D FA WR
Brand	Pentax	Pentax
Weight (g)	345	340
Type	Telephoto Prime Macro	Telephoto Prime (Macro)
Lens Construction	9 elements in 8 groups	9 elements in 8 groups
Filter Size (mm)	49	49
APS Equivalent	150mm	150mm
Notes	-	Simplified Weather-resistant Construction; Included Accessories: Hood, Case and Lens Cap
Diaphragm Blades	8	8
Diaphragm Blades Type	-	rounded
Diameter (mm)	67.5	65