Sigma EX 17-50mm F2.8 DC OS HSM vs Tamron 28-300mm F3.5-6.3 XR Di

This is a full comparison between the lenses Sigma EX 17-50mm F2.8 DC OS HSM and Tamron 28-300mm F3.5-6.3 XR Di .

Compare Specifications

Product
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Name Sigma EX 17-50mm F2.8 DC OS HSM Tamron 28-300mm F3.5-6.3 XR Di
Manufacturer Sigma Tamron
SKU
Release Date and Price
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Release Year 2010 2004
Release Date
MSRP 980 USD N/A
Buy it today
Lens Type
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Lens Type Standard / Normal Superzoom
Zoom or Prime Zoom lens Zoom lens
Mount and Compatibility
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Mount Canon EF-SNikon F Canon EFNikon F
Designed for APS-C sensor Yes No (Suitable for all sensors)
Focus
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Autofocus (AF) Yes YesNote. See below for further information
Built-in Autofocus (AF) Motor Yes No
Requires that the camera has an Autofocus Motor
Compatible Cameras for Tamron 28-300mm F3.5-6.3 XR Di
Motor Type No information N/A
Focus Method No information No information
Closest Focusing Distance 28 cm 49 cm
Maximum Magnification
Aperture
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Maximum Aperture F2,8 F3,5-6,3
This lens has a variable aperture at different focal lengths.
F3,5 at 28 mm
F6,3 at 300 mm
Variable Aperture
Diaphragm Blades No information No information
Optics
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Construction 17 elements  /  13 groups 15 elements  /  13 groups
Special Elements/Coatings No information No information
Focal Length
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Focal Length 17-50 mm 28-300 mm
Zoom Range 33 mm 272 mm
Built-in Teleconverter No No
Teleconverter Multiplier N/A N/A
Image Stabilization Yes
OS
No
Image Stabilization CIPA Rating N/A N/A
Physical
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Weather Sealing No No
Diameter 83 mm 73 mm
Length 91 mm 83 mm
Weight 565 gr 420 gr
Other
Sigma EX 17-50mm F2.8 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Filter Type Filter Thread Filter Thread
Filter Diameter 77 mm 62 mm
Lens Hood Included Included
Lens Hood SKU LH825-03 583 AD06
Tripod Collar N/A N/A
Tripod Collar SKU N/A N/A
Other Model A061