Comparison of Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro (Model B016) and Tamron 18-400mm f/3.5-6.3 Di II VC HLD (Model B028)

Attribute	Tamron 18-400mm f/3.5-6.3 Di II VC HLD (Model B028) ×	Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro (Model B016) ×
Aperture (f)	3.50 - 40.00	3.50 - 40.00
Filter Size (mm)	72	67
Notes	Image Stabilization (CIPA 2.5 stops); Available mounts: Canon and Nikon; Includes petal type lens hood; Compatible with TAP-in Console	Includes flower-shaped lens hood. Available AF mounts: Canon EF-S, Nikon F, Sony A; VC Image Stabilization; Sony version does not include VC.
Closest Focus (m)	0.45	0.39
Magnification Ratio (x)	0.34	0.34
Zoom System	Rotary (extending) with zoom lock switch	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	1.5x: 27 - 600mm; 1.6x: 28.8 - 640mm	1.5x: 24 - 450mm 1.6x: 25.6 - 480mm
Diaphragm Blades	7	7
Image Circle	Image Circle	APS-C
Focal Length (mm)	18.00 - 400.00	16.00 - 300.00
Brand	Tamron	Tamron
Name	Tamron 18-400mm f/3.5-6.3 Di II VC HLD (Model B028)	Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro (Model B016)
Weight (g)	710	540
Diaphragm Blades Type	rounded	rounded
Lens Construction	16 elements in 11 groups, including 3 LD (low dispersion) and 3 aspherical elements	16 elements in 12 groups including 1 Hybrid Aspherical, two LD (Low Dispersion), 1 XR (Extra Refractive index), 1 UXR (Ultra-Extra Refractive Index)
Diagonal Angle of View (degree)	4.00 - 75.55	5.30 - 82.20
Length (mm)	123.9	99.5
Diameter (mm)	79	75
Focus Details	Internal with HLD motor	Internal with Piezo Drive motor; Full-time manual focus function