Canon EOS Rebel T2i Lenses that have Sigma OS image stabilization and have a focus motor

"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			Zoom range	2.9x
	Focus motor	Sigma HSM			Aperture	f/2.8
	Fixed aperture	Yes			Length	n/a
	Max focal length	50 mm			Weight	0.6 kg

"Consistent output, fast/accurate auto-focus, nice bokeh, strong construction."

Fixed aperture The same aperture at all focal lengths

	Image stabilization	Sigma OS			Zoom range	2.9x
	Focus motor	Sigma HSM			Aperture	f/2.8
	Fixed aperture	Yes			Length	n/a
	Max focal length	200 mm			Weight	1.4 kg

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

	Image stabilization	Sigma OS			Zoom range	2.8x
	Focus motor	Sigma HSM			Aperture	f/2.8
	Fixed aperture	No			Length	n/a
	Max focal length	50 mm			Weight	395 g

"Best for bird watchers and sports photography. Fast auto focus."

Great telephoto lens 500 mm

Great zoom range 10x

	Image stabilization	Sigma OS			Zoom range	10x
	Focus motor	Sigma HSM			Aperture	f/4.5
	Fixed aperture	No			Length	219 mm
	Max focal length	500 mm			Weight	2 kg

"Very good picture quality (especially at f/8 and smaller) and optical stabilization. "

Great telephoto lens 400 mm

	Image stabilization	Sigma OS			Zoom range	3.3x
	Focus motor	Sigma HSM			Aperture	f/4.5
	Fixed aperture	No			Length	204 mm
	Max focal length	400 mm			Weight	1.7 kg

"Great for close ups of action (sports), wildlife and portraits."

Quite short 102 mm

	Image stabilization	Sigma OS			Zoom range	4x
	Focus motor	Sigma HSM			Aperture	f/4
	Fixed aperture	No			Length	102 mm
	Max focal length	200 mm			Weight	n/a

"I got this lens about a month and a half ago and I have been pleased with it so far. It is my second walk-around lens for my Canon XTi."

Quite short 89 mm

	Image stabilization	Sigma OS			Zoom range	6.9x
	Focus motor	Sigma HSM			Aperture	f/3.8
	Fixed aperture	No			Length	89 mm
	Max focal length	125 mm			Weight	0.5 kg