Sigma Landscape lenses for less than $500 that are 18mm or wider

"Very happy with this lens. Used this lens for a wedding this past weeked, very pleased." bhphotovideo.com

More advanced image stabilization Sigma OS

	Min focal length	17 mm			Max focal length	70 mm
	Zoom range	4.1x			Aperture	f/2.8
	Fixed aperture	No			Diameter	79 mm
	Image stabilization	Sigma OS			Length	82 mm

"I like the lense. It is a great walk around lense which is light and fast enough for situations where other lenses fail. I used to have the 17-85mm EF-S Canon lense before and was looking for a faster alternative that is having a good wide ancle" bhphotovideo.com

More advanced image stabilization Sigma OS

	Min focal length	17 mm			Max focal length	70 mm
	Zoom range	4.1x			Aperture	f/2.8
	Fixed aperture	No			Diameter	79 mm
	Image stabilization	Sigma OS			Length	82 mm

"It is extremely sharp and is definatly wide enough. This is a true wide angle lens." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

	Min focal length	10 mm			Max focal length	20 mm
	Zoom range	2x			Aperture	f/3.5
	Fixed aperture	Yes			Diameter	86 mm
	Image stabilization	None			Length	89 mm

"This has become a lens I must have with me. Use it appropriately and it is sharp with minimal to no vignetting." bhphotovideo.com

	Min focal length	10 mm			Max focal length	20 mm
	Zoom range	2x			Aperture	f/4
	Fixed aperture	No			Diameter	86 mm
	Image stabilization	None			Length	89 mm

"One of the main pros of these lens is the AF system – fast and acurate." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

More advanced image stabilization Sigma OS

	Min focal length	17 mm			Max focal length	50 mm
	Zoom range	2.9x			Aperture	f/2.8
	Fixed aperture	Yes			Diameter	84 mm
	Image stabilization	Sigma OS			Length	91 mm

"The OS works excellent. Clear at even 200mm and nice bokeh." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

More advanced image stabilization Sigma OS

	Min focal length	17 mm			Max focal length	50 mm
	Zoom range	2.9x			Aperture	f/2.8
	Fixed aperture	Yes			Diameter	84 mm
	Image stabilization	Sigma OS			Length	91 mm

"The lens is great, especially If you like taking interior shots or panoramic, architectural buildings, architectural models." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

	Min focal length	10 mm			Max focal length	20 mm
	Zoom range	2x			Aperture	f/3.5
	Fixed aperture	Yes			Diameter	86 mm
	Image stabilization	None			Length	89 mm