Comparison of Zeiss 85mm f/2.4 Loxia 2.4/85 and Sigma 105mm ƒ/2.8 EX DG OS HSM Macro

Attribute	Sigma 105mm ƒ/2.8 EX DG OS HSM Macro ×	Zeiss 85mm f/2.4 Loxia 2.4/85 ×
Filter Size (mm)	62	52
Notes	Image Stabilized. Planned AF Mounts: Canon, Nikon, Pentax, Sigma, Sony. Included Accessories: Case, Bayonet type Hood (LH680-03), Hood Adapter (HA680	Sony E-Mount (full frame); Weather-resistant lens mount gasket; Included Accessories: Lens hood, front and rear lens caps, de-click key.
Closest Focus (m)	0.31	0.8
Magnification Ratio (x)	1	0.139
Type	Telephoto Prime Macro	Telephoto Prime
Length (mm)	126.4	108
APS Equivalent	1.5x: 157.5mm; 1.6x: 168mm	1.5x: 127.5mm
Diagonal Angle of View (degree)	23.30	28.63
Image Circle	35mm	35mm
Focal Length (mm)	105.00	85.00
Brand	Sigma	Carl-zeiss
Name	Sigma 105mm ƒ/2.8 EX DG OS HSM Macro	Zeiss 85mm f/2.4 Loxia 2.4/85
Weight (g)	725	594
Aperture (f)	2.80 - 22.00	2.40 - 22.00
Diaphragm Blades	9	10
Diaphragm Blades Type	rounded	rounded
Lens Construction	16 elements in 11 groups	7 elements in 7 groups, including 3 anomalous partial dispersion elements; Zeiss T* anti-reflective coating
Diameter (mm)	78.3	62.5
Focus Details	HSM with full-time manual override, focus limiter	Manual focus only, with large 220 degree focus throw, engraved distance and DOF scales