Comparison of Pentax SMC P-FA 100mm f/3.5 Macro and Sigma 60mm ƒ/2.8 DN Art

Attribute	Pentax SMC P-FA 100mm f/3.5 Macro ×	Sigma 60mm ƒ/2.8 DN Art ×
Diagonal Angle of View (degree)	24.50	20.40
Diameter (mm)	67.5	60.8
Filter Size (mm)	49	46
Aperture (f)	3.50 - 22.00	2.80 - 22.00
Type	Telephoto Prime	Telephoto Prime
Magnification Ratio (x)	0.5	0.14
APS Equivalent	150mm	1.5x: 90mm; 2.0x: 120mm
Notes	-	Lens mounts: Sony E-Mount, Micro Four Thirds. Lens hood (LH520-03) included. Available in black or silver.
Image Circle	35mm	APS-C / Micro Four-Thirds
Focal Length (mm)	100.00	60.00
Brand	Pentax	Sigma
Name	Pentax SMC P-FA 100mm f/3.5 Macro	Sigma 60mm ƒ/2.8 DN Art
Weight (g)	221	190
Diaphragm Blades	-	7
Lens Construction	5 elements in 4 groups	8 elements in 6 groups, including aspherical and SLD elements
Focus Details	-	Inner focusing with linear AF motor
Length (mm)	71	55.5
Diaphragm Blades Type	-	rounded
Closest Focus (m)	0.43	0.5