Comparison of Zeiss 15mm f/2.8 Milvus 2.8/15 and Fujinon GF 23mm f/4 R LM WR

Attribute	Zeiss 15mm f/2.8 Milvus 2.8/15 ×	Fujinon GF 23mm f/4 R LM WR ×
Aperture (f)	2.80 - 22.00	4.00 - 32.00
Filter Size (mm)	95	82
Notes	Available lens mounts: Canon EF (ZE), Nikon F (ZF.2); Weather-sealed construction to protect against dust and moisture; Hood and lens caps included.	For Fujifilm G-mount; Weather, dust and freeze resistant; Lens caps, hood and pouch included.
Closest Focus (m)	0.25	0.38
Magnification Ratio (x)	0.11	0.09
Diameter (mm)	102.3	89.8
Type	Wide Prime	Wide Prime
APS Equivalent	1.5x: 22.5mm; 1.6x: 24mm	-
Diaphragm Blades	9	9
Image Circle	35mm	Medium Format (Fujifilm G-mount)
Focal Length (mm)	15.00	23.00
Brand	Carl-zeiss	Fujinon
Name	Zeiss 15mm f/2.8 Milvus 2.8/15	Fujinon GF 23mm f/4 R LM WR
Weight (g)	880	845
Diaphragm Blades Type	rounded	rounded
Lens Construction	15 elements in 12 groups, including 5 Anomalous Partial Dispersion and 2 aspherical elements; Enhanced Zeiss T* anti-reflective coating	15 elements in 12 groups, including 2 aspherical, 1 Super ED, and 3 ED (extra low dispersion) elements; Nano GI coating
Diagonal Angle of View (degree)	110.00	99.90
Length (mm)	99	103
35mm Equivalent	-	18mm
Focus Details	Manual focus only	AF via a linear motor