Canon Rebel T3i Macro lenses that have a Sigma HSM focus motor

"I was completely surprised at the focus accuracy - not a single miss-focus due to the lens. Autofocus was more than fast enough for action shots. This lens is very sharp and with the speed and accuracy of the autofocus it can easily be used for close sport events. Built quality is very good. Macro is excellent, as expected. The mount and hood that comes with the lens is a huge plus."

	Focus motor	Sigma HSM			Min focal length	150 mm
	Image stabilization	None			Max focal length	150 mm
	Aperture	f/2.8			Weight	0.9 kg
	Length	137 mm			Diameter	80 mm

"I had this lens for about 2 weeks now and it has been fabulous."

	Focus motor	Sigma HSM			Min focal length	180 mm
	Image stabilization	None			Max focal length	180 mm
	Aperture	f/3.5			Weight	1 kg
	Length	182 mm			Diameter	80 mm