Sigma 18-50mm F2.8-4.5 DC OS HSM vs Tamron 28-300mm F3.5-6.3 XR Di

This is a full comparison between the lenses Sigma 18-50mm F2.8-4.5 DC OS HSM and Tamron 28-300mm F3.5-6.3 XR Di .

Compare Specifications

Product
Sigma 18-50mm F2.8-4.5 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Name Sigma 18-50mm F2.8-4.5 DC OS HSM Tamron 28-300mm F3.5-6.3 XR Di
Manufacturer Sigma Tamron
SKU
Release Date and Price
Sigma 18-50mm F2.8-4.5 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Release Year 2009 2004
Release Date
MSRP 420 USD N/A
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Lens Type
Sigma 18-50mm F2.8-4.5 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 18-50mm F2.8-4.5 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 18-50mm F2.8-4.5 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 30 cm 49 cm
Maximum Magnification
Aperture
Sigma 18-50mm F2.8-4.5 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Maximum Aperture F2,8-4,5
This lens has a variable aperture at different focal lengths.
F2,8 at 18 mm
F4,5 at 50 mm
Variable Aperture
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 18-50mm F2.8-4.5 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Construction 16 elements  /  12 groups 15 elements  /  13 groups
Special Elements/Coatings No information No information
Focal Length
Sigma 18-50mm F2.8-4.5 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Focal Length 18-50 mm 28-300 mm
Zoom Range 32 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 18-50mm F2.8-4.5 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Weather Sealing No No
Diameter 74 mm 73 mm
Length 88 mm 83 mm
Weight 395 gr 420 gr
Other
Sigma 18-50mm F2.8-4.5 DC OS HSM
Tamron 28-300mm F3.5-6.3 XR Di
Filter Type Filter Thread Filter Thread
Filter Diameter 67 mm 62 mm
Lens Hood Included Included
Lens Hood SKU LH730-02 580 AD06
Tripod Collar N/A N/A
Tripod Collar SKU N/A N/A
Other Model A061