Comparison of Konica Minolta AF 17-35mm f/2.8-4 D and Tamron 17-35mm f/2.8-4 Di OSD (Model A037)

Attribute	Tamron 17-35mm f/2.8-4 Di OSD (Model A037) ×	Konica Minolta AF 17-35mm f/2.8-4 D ×
Aperture (f)	2.80 - 22.00	2.80 - 32.00
Diagonal Angle of View (degree)	63.40 - 103.70	63.00 - 104.00
Filter Size (mm)	77	77
Notes	Available mounts: Canon EF, Nikon F; Moisture-resistant construction; Includes petal type lens hood.	Included Accessories: Lens Hood
Diaphragm Blades Type	circular	-
Type	Wide Zoom	Wide Zoom
APS Equivalent	-	25.5 - 52.5mm
Diaphragm Blades	7	-
Image Circle	Image Circle	35mm
Focal Length (mm)	17.00 - 35.00	17.00 - 35.00
Brand	Tamron	Konica-minolta
Name	Tamron 17-35mm f/2.8-4 Di OSD (Model A037)	Konica Minolta AF 17-35mm f/2.8-4 D
Weight (g)	459	430
Zoom System	Rotary	Rotary
Lens Construction	15 elements in 10 groups, including 4 LD (Low Dispersion) and 2 GM (Glass Molded) aspherical elements BBAR (Broad-Band Anti-Reflection) coating	14 elements in 11 groups
Diameter (mm)	83.2	83
Length (mm)	91.4	88.5
Focus Details	Internal via OSD (Optimized Silent Drive); AF/MF switch	-
Magnification Ratio (x)	0.2	0.19
35mm Equivalent	1.5x: 25.5 - 52.5mm; 1.6x: 27.2 - 56mm	-
Closest Focus (m)	0.28	0.3