Comparison of Olympus 25mm ƒ/1.8 M.Zuiko Digital and Tamron 35mm f/2.8 Di III OSD M1:2 (Model F053)

Attribute	Tamron 35mm f/2.8 Di III OSD M1:2 (Model F053) ×	Olympus 25mm ƒ/1.8 M.Zuiko Digital ×
Aperture (f)	2.80 - 22.00	1.80 - 22.00
Diaphragm Blades Type	circular	circular
Filter Size (mm)	67	46
Notes	Available mounts: Sony E-mount; Moisture-resistant construction; Included Accessories: Lens hood, lens caps.	Available in black or silver. Included accessories: Lens Cap (LC-46), Lens Rear Cap (LR-2), Lens Hood (LH-49B), Decoration Ring (DR-49).
Type	Wide Prime	Standard Prime
Magnification Ratio (x)	0.5	0.12
Diaphragm Blades	7	7
35mm Equivalent	1.5x: 52.5mm	50mm
Image Circle	Image Circle	Image Circle
Focal Length (mm)	35.00	25.00
Brand	Tamron	Olympus
Name	Tamron 35mm f/2.8 Di III OSD M1:2 (Model F053)	Olympus 25mm ƒ/1.8 M.Zuiko Digital
Weight (g)	210	136
Diagonal Angle of View (degree)	63.50	47.00
Lens Construction	9 elements in 8 groups, including 1 GM (Glass Molded) aspherical and 1 LD (Low Dispersion) element; BBAR coating; Fluorine coating	9 elements in 7 groups, including 2 aspherical elements
Diameter (mm)	73	56
Length (mm)	64	41
Focus Details	Internal with OSD (Optimized Silent Drive) motor; Continuous manual focus mechanism	-
Closest Focus (m)	0.15	0.24