Canon EOS 50D Macro lenses that have a focus motor and have a f/2.8 or faster aperture

"This lens is super fast and silent while focusing, but more importantly accurate as well. It is unbelievably sharp a few stops under wide open."

	Aperture	f/2.8			Length	119 mm
	Focus motor	Canon USM			Max focal length	100 mm
	Image stabilization	None			Weight	0.6 kg
	Min focal length	100 mm			Diameter	79 mm

"More than satisfied with the sharp, fast focus, but even happier with portrait results."

	Aperture	f/2.8			Length	70 mm
	Focus motor	Canon USM			Max focal length	60 mm
	Image stabilization	None			Weight	335 g
	Min focal length	60 mm			Diameter	73 mm

"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."

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

"Best lens I have bought in years. Of course, it produces great macros. But it can be used for portraits, even indoors. Portrait results blew me away."

More advanced image stabilization Canon IS

	Aperture	f/2.8			Length	n/a
	Focus motor	Canon USM			Max focal length	100 mm
	Image stabilization	Canon IS			Weight	0.6 kg
	Min focal length	100 mm			Diameter	n/a