Nikon F Lenses for less than $500 that are 10mm or wider

"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

Supports autofocus Easier to use

	Min focal length	10 mm			Aperture	f/3.5
	Fisheye	No			Diameter	86 mm
	Fixed aperture	Yes			Zoom range	2x
	Auto focus	Yes			Length	89 mm

"Mounted on my Nikon D90. The lens capability is as good with its Nikon equivalent at half the price after rebate. Autofocus speed is just fast enough for my application. The picture quality at low level light with flash activated on auto-mode is excellent." bhphotovideo.com

Supports autofocus Easier to use

	Min focal length	10 mm			Aperture	f/3.5
	Fisheye	No			Diameter	79 mm
	Fixed aperture	No			Zoom range	2.4x
	Auto focus	Yes			Length	99 mm

"Since I got it about a week ago I think that I made more than 100 pictures with it and the results are outstanding" bhphotovideo.com

Fisheye Extremely wide circular images

Supports autofocus Easier to use

	Min focal length	10 mm			Aperture	f/3.5
	Fisheye	Yes			Diameter	70 mm
	Fixed aperture	No			Zoom range	1.7x
	Auto focus	Yes			Length	70 mm