Wide aperture

Camera
Sony SLT-A77

Lens category

Focus motor

Sony SLT-A77 Wide angle lenses that have a Sigma HSM focus motor and have a f/2.8 or faster aperture

#1	Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha

Sigma 17-50mm f/2.8 EX DC OS HSM Sony-alpha

$669

"The lens feels very solid and well made."

	Fixed aperture
	The same aperture at all focal lengths

	Aperture	f/2.8			Zoom range	2.9x

	Focus motor	Sigma HSM			Max focal length	50 mm

	Fixed aperture	Yes			Weight	0.6 kg

	Image stabilization	Sigma OS			Min focal length	17 mm

#2	Sigma 18-50mm f/2.8-4.5 DC OS HSM Sony-alpha

Sigma 18-50mm f/2.8-4.5 DC OS HSM Sony-alpha

$199

"Use in everyday photography, fast focusing and great quality pictures."

	Aperture	f/2.8			Zoom range	2.8x

	Focus motor	Sigma HSM			Max focal length	50 mm

	Fixed aperture	No			Weight	395 g

	Image stabilization	Sigma OS			Min focal length	18 mm

#3	Sigma 17-50mm f/2.8 EX DC HSM Sony-alpha

Sigma 17-50mm f/2.8 EX DC HSM Sony-alpha

$594

	Fixed aperture
	The same aperture at all focal lengths

	Aperture	f/2.8			Zoom range	2.9x

	Focus motor	Sigma HSM			Max focal length	50 mm

	Fixed aperture	Yes			Weight	n/a

	Image stabilization	None			Min focal length	17 mm

#4	Sigma 17-70mm f/2.8-4 DC Macro OS HSM Sony-alpha

Sigma 17-70mm f/2.8-4 DC Macro OS HSM Sony-alpha

$469

	Aperture	f/2.8			Zoom range	4.1x

	Focus motor	Sigma HSM			Max focal length	70 mm

	Fixed aperture	No			Weight	0.5 kg

	Image stabilization	Sigma OS			Min focal length	17 mm

#5	Sigma 17-70mm f/2.8-4 DC Macro HSM Sony-alpha

Sigma 17-70mm f/2.8-4 DC Macro HSM Sony-alpha

$399

	Aperture	f/2.8			Zoom range	4.1x

	Focus motor	Sigma HSM			Max focal length	70 mm

	Fixed aperture	No			Weight	465 g

	Image stabilization	None			Min focal length	17 mm

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