Comparison of Zeiss 21mm f/2.8 Loxia 2.8/21 and Sony FE 24mm f/1.4 GM SEL24F14GM

Attribute	Sony FE 24mm f/1.4 GM SEL24F14GM ×	Zeiss 21mm f/2.8 Loxia 2.8/21 ×
Filter Size (mm)	67	52
Notes	Dust and moisture resistant; Included Accessories: ALC-SH15 Hood, Caps and Case.	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)	0.24	0.25
Magnification Ratio (x)	0.17	0.13
Type	Wide Prime	Wide Prime
Length (mm)	92.4	85
APS Equivalent	36mm	1.5x: 31.5mm
Diagonal Angle of View (degree)	84.00	91.00
Image Circle	35mm (Full-frame E-Mount)	35mm
Focal Length (mm)	24.00	21.00
Brand	Sony	Carl-zeiss
Name	Sony FE 24mm f/1.4 GM SEL24F14GM	Zeiss 21mm f/2.8 Loxia 2.8/21
Weight (g)	445	394
Aperture (f)	1.40 - 16.00	2.80 - 22.00
Diaphragm Blades	11	10
Diaphragm Blades Type	rounded	rounded
Lens Construction	13 elements in 10 groups, including 3 ED (Extra-low Dispersion) and 2 XA (eXtreme Aspherical) elements; Nano AR Coating	11 elements in 9 groups, including 1 aspherical and 4 anomalous partial dispersion elements; Zeiss T* anti-reflective coating
Diameter (mm)	75.4	62.1
Focus Details	Internal with DDSSM (Direct Drive Supersonic Motor); AF/MF switch; customizable focus hold button	Manual focus only, with large 180 degree focus throw, engraved distance and DOF scales