Canon Rebel T3 Telephoto lenses that have Sigma OS image stabilization

"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			Aperture	f/2.8
	Fixed aperture	Yes			Length	n/a
	Zoom range	2.9x			Weight	1.4 kg
	Max focal length	200 mm			Min focal length	70 mm

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

Great telephoto lens 500 mm

Great zoom range 10x

	Image stabilization	Sigma OS			Aperture	f/4.5
	Fixed aperture	No			Length	219 mm
	Zoom range	10x			Weight	2 kg
	Max focal length	500 mm			Min focal length	50 mm

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

Great telephoto lens 400 mm

	Image stabilization	Sigma OS			Aperture	f/4.5
	Fixed aperture	No			Length	204 mm
	Zoom range	3.3x			Weight	1.7 kg
	Max focal length	400 mm			Min focal length	120 mm

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

	Image stabilization	Sigma OS			Aperture	f/4
	Fixed aperture	No			Length	102 mm
	Zoom range	4x			Weight	n/a
	Max focal length	200 mm			Min focal length	50 mm

"I was looking for a lens with a better focal lenght range than the kit 18-55 lens. I found this one to be perfect, because of the focal lenght, the OS, the HSM and the reasonable price for the features."

	Image stabilization	Sigma OS			Aperture	f/3.8
	Fixed aperture	No			Length	89 mm
	Zoom range	6.9x			Weight	0.5 kg
	Max focal length	125 mm			Min focal length	18 mm