Lenses for less than $100 that have a focus motor and have a f/2.8 or faster aperture

"Great lens, Super sharp for both macro and portraits. It is my most used portrait lens. Wonderful fast focus, good build quality." bhphotovideo.com

	Aperture	f/2.8			Length	70 mm
	Focus motor	Canon USM			Zoom range	1x
	Image stabilization	None			Min focal length	60 mm
	Diameter	73 mm			Weight	335 g

"I purchased this lens because it's small, sharp, fast, light and cheap. Something I can put on my Canon body and take with me on business trips " bhphotovideo.com

	Aperture	f/1.8			Length	41 mm
	Focus motor	Generic motor			Zoom range	1x
	Image stabilization	None			Min focal length	50 mm
	Diameter	69 mm			Weight	130 g

"Coupled with a full frame body like the 5DMII this is an excellent lens for architecture, interior or any form of landscape photography." bhphotovideo.com

	Aperture	f/2.8			Length	112 mm
	Focus motor	Canon USM			Zoom range	2.2x
	Image stabilization	None			Min focal length	16 mm
	Diameter	89 mm			Weight	0.6 kg

"In my use of the lens with a Sigma mount, I have found it to be very good. The build quality is very good." bhphotovideo.com

Wide aperture f/1.4

	Aperture	f/1.4			Length	69 mm
	Focus motor	Sigma HSM			Zoom range	1x
	Image stabilization	None			Min focal length	50 mm
	Diameter	84 mm			Weight	0.5 kg

"This is also a great lens for shooting HD video." bhphotovideo.com

More advanced image stabilization Canon IS

	Aperture	f/2.8			Length	112 mm
	Focus motor	Canon USM			Zoom range	3.2x
	Image stabilization	Canon IS			Min focal length	17 mm
	Diameter	84 mm			Weight	0.6 kg

"Sharper than most lenses wide open. Really sharp beyond. Using it mostly for nature photos." bhphotovideo.com

	Aperture	f/2			Length	74 mm
	Focus motor	Canon USM			Zoom range	1x
	Image stabilization	None			Min focal length	100 mm
	Diameter	75 mm			Weight	460 g