Comparison of Zeiss 21mm f/2.8 Loxia 2.8/21 and Zeiss 25mm f/2.4 Loxia 2.4/25

Attribute	Zeiss 21mm f/2.8 Loxia 2.8/21 ×	Zeiss 25mm f/2.4 Loxia 2.4/25 ×
Filter Size (mm)	52	52
Notes	Sony E-Mount (full frame); Weather-resistant lens mount gasket; Included Accessories: Lens hood, front and rear lens caps, de-click key.	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)	0.25	0.25
Magnification Ratio (x)	0.13	0.16
Type	Wide Prime	Wide Prime
Length (mm)	85	75
APS Equivalent	1.5x: 31.5mm	1.5x: 37.8mm
Diagonal Angle of View (degree)	91.00	81.00
Image Circle	35mm	35mm
Focal Length (mm)	21.00	25.00
Brand	Carl-zeiss	Carl-zeiss
Name	Zeiss 21mm f/2.8 Loxia 2.8/21	Zeiss 25mm f/2.4 Loxia 2.4/25
Weight (g)	394	393
Aperture (f)	2.80 - 22.00	2.40 - 22.00
Diaphragm Blades	10	10
Diaphragm Blades Type	rounded	rounded
Lens Construction	11 elements in 9 groups, including 1 aspherical and 4 anomalous partial dispersion elements; Zeiss T* anti-reflective coating	10 elements in 8 groups, including 1 aspherical and 2 anomalous partial dispersion elements; Zeiss T* anti-reflective coating
Diameter (mm)	62.1	62
Focus Details	Manual focus only, with large 180 degree focus throw, engraved distance and DOF scales	Manual focus only, with 90 degree focus throw, engraved distance and DOF scales