Wide angle lenses for less than $700 that have a f/2.8 or faster aperture

"I purchased this lens as an upgrade when i purchased my D90. I have not been disappointed. From weddings to flowers to portraits to everything else, this lens has proven itself a sweet performer everytime. The sharpness is outstanding, the bokeh is amazing,and the overall image qaulity is incredible." bhphotovideo.com

	Aperture	f/2.8			Zoom range	3.5x
	Focus motor	None			Diameter	79 mm
	Auto focus	Yes			Length	81 mm
	Image stabilization	None			Max focal length	85 mm

"This lens is really great. The picture quality is awsome. It can make great proxy. I've shot a picture of a spider and i can see the hair over his eyes." bhphotovideo.com

More advanced image stabilization Sigma OS

Great zoom range 4.1x

Silent focus motor Silent and fast

	Aperture	f/2.8			Zoom range	4.1x
	Focus motor	Sigma HSM			Diameter	79 mm
	Auto focus	Yes			Length	82 mm
	Image stabilization	Sigma OS			Max focal length	70 mm

"Great build quality, super fast autofocus. -perfect lens for landscapes, and some general photography." bhphotovideo.com

	Aperture	f/2.8			Zoom range	1x
	Focus motor	None			Diameter	64 mm
	Auto focus	Yes			Length	46 mm
	Image stabilization	None			Max focal length	24 mm

"It focusses quickly and sharply. I am amazed by the night-time shots. Very sharp and fast focus!" bhphotovideo.com

Silent focus motor Silent and fast

	Aperture	f/2.8			Zoom range	1x
	Focus motor	Generic motor			Diameter	63 mm
	Auto focus	Yes			Length	20 mm
	Image stabilization	None			Max focal length	20 mm