Landscape lenses that are 10mm or wider and have a f/4 or faster aperture

"Very good picture clarity and the wide angle makes it my go-to lens for almost any outdoor situation." bhphotovideo.com

Supports autofocus Easier to use

	Aperture	f/3.5			Image stabilization	None
	Min focal length	10 mm			Diameter	84 mm
	Fixed aperture	No			Length	90 mm
	Auto focus	Yes			Zoom range	2.2x

"Takes great, clear, sharp photgraphs." bhphotovideo.com

Supports autofocus Easier to use

Fixed aperture The same maximum aperture at all focal lengths

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

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

Supports autofocus Easier to use

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

"Really sharp for a UWA, well built, and amazingly small and lightweight for what it is. Lenscap is quite large as it fits over the domed front -- it is not easy to lose, which is good." bhphotovideo.com

Supports autofocus Easier to use

Fixed aperture The same maximum aperture at all focal lengths

	Aperture	f/4			Image stabilization	None
	Min focal length	7 mm			Diameter	70 mm
	Fixed aperture	Yes			Length	83 mm
	Auto focus	Yes			Zoom range	2x

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

Supports autofocus Easier to use

Fixed aperture The same maximum aperture at all focal lengths

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

"This is my first wide angle zoom and I don't see a reason to purchase another. Color and contrast are great, good edge to edge sharpness. Zoom ring is tight and well dampened." bhphotovideo.com

Supports autofocus Easier to use

	Aperture	f/3.5			Image stabilization	None
	Min focal length	10 mm			Diameter	79 mm
	Fixed aperture	No			Length	99 mm
	Auto focus	Yes			Zoom range	2.4x

"I found the lens solid in feel, easy to change, quick enough focussing" bhphotovideo.com

Supports autofocus Easier to use

	Aperture	f/4			Image stabilization	None
	Min focal length	9 mm			Diameter	79 mm
	Fixed aperture	No			Length	74 mm
	Auto focus	Yes			Zoom range	2x