Tokina Opera 16-28mm f/2.8 FF vs Sigma 17-50mm f/2.8 EX DC OS HSM


	Tokina Opera 16-28mm f/2.8 FF	Sigma 17-50mm f/2.8 EX DC OS HSM
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Brand	BrandTokina	BrandSigma
Sensor Format	Mount Full-Frame	Mount Full-Frame APS-C
Mount	Mount Canon EF-S (APS-C) Canon EF-M (APS-C) Nikon F DX (APS-C) Nikon F DX (Full-Frame) Sony E (APS-C) Sony FE (Full-Frame)	Mount Canon EF-S (APS-C) Canon EF-M (APS-C) Nikon F DX (APS-C) Nikon F DX (Full-Frame) Sigma SA
Category	CategoryWide angle	CategoryStandard
Use Case	Use Case Landscape Architectural Travel Everyday	Use Case Landscape Portrait Everyday Event Travel
Focal Length (min/max)	Focal Length (min/max)16mm - 28mm	Focal Length (min/max)17mm - 50mm
Angle Of View (min/max)	Angle Of View (min/max)84°	Angle Of View (min/max)81.5°
Aperture	Aperturef/2.8max - f/22min	Aperturef/2.8max - f/22min
Blades	Blades9	Blades9
Circular Aperture	Circular ApertureYes	Circular ApertureYes
Minimum Focus Distance	Minimum Focus Distance0.39 ft	Minimum Focus Distance0.45m
Max Magnification Ratio (X)	Max Magnification Ratio (X)0.15x	Max Magnification Ratio (X)0.22x
Filter Diameter	Filter Diameter77	Filter Diameter77
Stabilization	StabilizationNo (relies on in-camera stabilization)	StabilizationYes
Auto Focus	Auto FocusYes	Auto FocusYes
Release Date	Release Date2023	Release Date2010
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