Zoom Lenses that have Sigma OS image stabilization

"The zoom is smooth once you get the handle of it, and its low light capability is excellent considering the price."

Fixed aperture The same aperture at all focal lengths

	Image stabilization	Sigma OS			Min focal length	17 mm
	Fixed aperture	Yes			Zoom range	2.9x
	Max focal length	50 mm			Length	n/a
	Weight	0.6 kg			Diameter	n/a

"The OS works excellent. Clear at even 200mm and nice bokeh."

Fixed aperture The same aperture at all focal lengths

	Image stabilization	Sigma OS			Min focal length	17 mm
	Fixed aperture	Yes			Zoom range	2.9x
	Max focal length	50 mm			Length	n/a
	Weight	0.6 kg			Diameter	n/a

"Sigma's new Optical Stabilizer is very effective. Focus is pretty much instantaneous, and silent."

Fixed aperture The same aperture at all focal lengths

	Image stabilization	Sigma OS			Min focal length	17 mm
	Fixed aperture	Yes			Zoom range	2.9x
	Max focal length	50 mm			Length	n/a
	Weight	0.6 kg			Diameter	n/a

"The OS works incredibly well and perhaps I got a great copy, but it is sharp wide open."

Fixed aperture The same aperture at all focal lengths

	Image stabilization	Sigma OS			Min focal length	70 mm
	Fixed aperture	Yes			Zoom range	2.9x
	Max focal length	200 mm			Length	n/a
	Weight	1.4 kg			Diameter	n/a

"This is a great all aroud lens. Love the wide angle I get and just enough zoom for an alround."

Quite short 83 mm

	Image stabilization	Sigma OS			Min focal length	17 mm
	Fixed aperture	No			Zoom range	4.1x
	Max focal length	70 mm			Length	83 mm
	Weight	0.5 kg			Diameter	79 mm

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

	Image stabilization	Sigma OS			Min focal length	18 mm
	Fixed aperture	No			Zoom range	2.8x
	Max focal length	50 mm			Length	n/a
	Weight	395 g			Diameter	n/a

"Very happy with this lens. Used this lens for a wedding this past weeked, very pleased."

Quite short 83 mm

	Image stabilization	Sigma OS			Min focal length	17 mm
	Fixed aperture	No			Zoom range	4.1x
	Max focal length	70 mm			Length	83 mm
	Weight	0.5 kg			Diameter	79 mm

"Very bright optics, fast auto focus, beautiful soft bokeh, built like a tank, and a great low light lens."

	Image stabilization	Sigma OS			Min focal length	18 mm
	Fixed aperture	No			Zoom range	2.8x
	Max focal length	50 mm			Length	n/a
	Weight	395 g			Diameter	n/a