Canon Rebel T3i Zoom Portrait lenses that have a f/2.8 or faster aperture

"This is one of the sharpest lenses I have ever seen. Love it so much and is on my camera most of the time now."

More advanced image stabilization Canon IS II

	Aperture	f/2.8			Length	199 mm
	Image stabilization	Canon IS II			Weight	1.5 kg
	Focus motor	Canon USM			Min focal length	70 mm
	Max focal length	200 mm			Diameter	89 mm

"ust received the lens, but so far it far exceeds my expectations. lens is sharp, easy to use, not as heavy as I heard it to be."

More advanced image stabilization Canon IS

	Aperture	f/2.8			Length	196 mm
	Image stabilization	Canon IS			Weight	1.5 kg
	Focus motor	Canon USM			Min focal length	70 mm
	Max focal length	200 mm			Diameter	86 mm

"Great for shooting portraits and low light sports shots. A must have for any semi-serious photographers."

	Aperture	f/2.8			Length	193 mm
	Image stabilization	None			Weight	1.3 kg
	Focus motor	Canon USM			Min focal length	70 mm
	Max focal length	200 mm			Diameter	84 mm

"ve had this lens for over a year and I have to say it's a fantastic piece of kit. It has a unique zoom range for a f/2.8 lens."

Great telephoto lens 300 mm

	Aperture	f/2.8			Length	269 mm
	Image stabilization	None			Weight	2.6 kg
	Focus motor	Sigma HSM			Min focal length	120 mm
	Max focal length	300 mm			Diameter	113 mm

"This lens is a very versatile utility lens. Very quick focusing and nice sharp pictures at most focal lenths."

	Aperture	f/2.8			Length	124 mm
	Image stabilization	None			Weight	1 kg
	Focus motor	Canon USM			Min focal length	24 mm
	Max focal length	70 mm			Diameter	83 mm

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

	Aperture	f/2.8			Length	n/a
	Image stabilization	Sigma OS			Weight	1.4 kg
	Focus motor	Sigma HSM			Min focal length	70 mm
	Max focal length	200 mm			Diameter	n/a

"I like that its over all lenght remains the same through out its focal lenght - 7 inc is pretty good for a lens of this capability."

	Aperture	f/2.8			Length	184 mm
	Image stabilization	None			Weight	1.4 kg
	Focus motor	Sigma HSM			Min focal length	70 mm
	Max focal length	200 mm			Diameter	86 mm

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

	Aperture	f/2.8			Length	n/a
	Image stabilization	Sigma OS			Weight	0.6 kg
	Focus motor	Sigma HSM			Min focal length	17 mm
	Max focal length	50 mm			Diameter	n/a

"very good lens. the best walk around for a crop."

More advanced image stabilization Canon IS

	Aperture	f/2.8			Length	110 mm
	Image stabilization	Canon IS			Weight	0.6 kg
	Focus motor	Canon USM			Min focal length	17 mm
	Max focal length	55 mm			Diameter	84 mm

"The manual/auto focus switch is not hard to get used to and is certainly easy to operate without the need to hunt for it reguardless of the camera/lens orientation."

	Aperture	f/2.8			Length	194 mm
	Image stabilization	None			Weight	1.1 kg
	Focus motor	None			Min focal length	70 mm
	Max focal length	200 mm			Diameter	90 mm