Comparison of Sigma 105mm ƒ/2.8 EX DG OS HSM Macro and Sony FE 100mm f/2.8 STF GM OSS SEL100F28GM

Attribute	Sony FE 100mm f/2.8 STF GM OSS SEL100F28GM ×	Sigma 105mm ƒ/2.8 EX DG OS HSM Macro ×
Filter Size (mm)	72	62
Notes	Optical SteadyShot Image Stabilization; Dust and moisture resistant	Image Stabilized. Planned AF Mounts: Canon, Nikon, Pentax, Sigma, Sony. Included Accessories: Case, Bayonet type Hood (LH680-03), Hood Adapter (HA680
Closest Focus (m)	0.57	0.31
Magnification Ratio (x)	0.25	1
Type	Telephoto Prime (Smooth Transition Focus)	Telephoto Prime Macro
Length (mm)	118.1	126.4
APS Equivalent	150mm	1.5x: 157.5mm; 1.6x: 168mm
Diagonal Angle of View (degree)	24.00	23.30
Image Circle	35mm (Full-frame E-Mount)	35mm
Focal Length (mm)	100.00	105.00
Brand	Sony	Sigma
Name	Sony FE 100mm f/2.8 STF GM OSS SEL100F28GM	Sigma 105mm ƒ/2.8 EX DG OS HSM Macro
Weight (g)	700	725
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	11	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	13 elements in 10 groups (excluding APD element), including 1 ED and 1 aspherical element; Nano AR Coating	16 elements in 11 groups
Diameter (mm)	85.2	78.3
Focus Details	Internal with DDSSM (Direct Drive SSM); AF/MF switch; Focus hold button	HSM with full-time manual override, focus limiter