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

"The zoom is smooth once you get the handle of it, and its low light capability is excellent considering the price."

Fixed aperture The same aperture at all focal lengths

	Aperture	f/2.8			Zoom range	2.9x
	Focus motor	Sigma HSM			Weight	0.6 kg
	Fixed aperture	Yes			Max focal length	50 mm
	Image stabilization	Sigma OS			Min focal length	17 mm

"very good lens. the best walk around for a crop."

Fixed aperture The same aperture at all focal lengths

	Aperture	f/2.8			Zoom range	3.2x
	Focus motor	Canon USM			Weight	0.6 kg
	Fixed aperture	Yes			Max focal length	55 mm
	Image stabilization	Canon IS			Min focal length	17 mm

"It's SUPER quiet and love that it comes with a hood and has a metal mount. Very durable and nice lens."

	Aperture	f/2.8			Zoom range	2.8x
	Focus motor	Sigma HSM			Weight	395 g
	Fixed aperture	No			Max focal length	50 mm
	Image stabilization	Sigma OS			Min focal length	18 mm

"So what is great about it? Well most everything I would say. It is a performer, it's sharp, it's light, it's sturdy, easy to use, and a good all round lens, and also it's easy on your budget from B & H."

	Aperture	f/2.8			Zoom range	4.1x
	Focus motor	Sigma HSM			Weight	465 g
	Fixed aperture	No			Max focal length	70 mm
	Image stabilization	Sigma OS			Min focal length	17 mm