Canon Rebel T3i Telephoto lenses for Canon EF (Full-frame) lens mount that have Sigma OS image stabilization

"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
	Fixed aperture	Yes			Focus motor	Sigma HSM
	Aperture	f/2.8			Length	n/a
	Max focal length	200 mm			Weight	1.4 kg

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

Great zoom range 10x

Great telephoto lens 500 mm

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

"I love this lens, bought it primarily for wildlife. Tack sharp images of antelope while braced against nothing but the frame of my car window (with the car engine running!) at ISO 100 with Optical Stabilization turned on. "

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

"It takes clear images at low shutter speeds thanks to it's image stabilization. It feels solid and is not very heavy."

Very light 0.6 kg

Quite short 127 mm

	Image stabilization	Sigma OS			Zoom range	4.3x
	Fixed aperture	No			Focus motor	None
	Aperture	f/4			Length	127 mm
	Max focal length	300 mm			Weight	0.6 kg

"this lens is the best value zoom for the amature photographer."

Great telephoto lens 500 mm

	Image stabilization	Sigma OS			Zoom range	3.3x
	Fixed aperture	No			Focus motor	Sigma HSM
	Aperture	f/5			Length	252 mm
	Max focal length	500 mm			Weight	1.9 kg