Sigma Lenses

"The macro is incredible for flowers, butterflies, pretty much anything you would want to get 1:2." bhphotovideo.com

Great telephoto lens 300 mm

	Fisheye	No			Image stabilization	None
	Fixed aperture	No			Zoom range	4.3x
	Max focal length	300 mm			Length	119 mm
	Aperture	f/4			Diameter	76 mm

"The Sigma 15mm 2.8 is really a very fine lens. The build is first rate and the glass is in the upper tier of the lot." bhphotovideo.com

Fisheye Extremely wide circular images

	Fisheye	Yes			Image stabilization	None
	Fixed aperture	n/a			Zoom range	1x
	Max focal length	15 mm			Length	71 mm
	Aperture	f/2.8			Diameter	74 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

	Fisheye	No			Image stabilization	Sigma OS
	Fixed aperture	Yes			Zoom range	2.9x
	Max focal length	50 mm			Length	91 mm
	Aperture	f/2.8			Diameter	84 mm

"I've been using this lens for over a year, and feel it is well worth the money. For a very reasonable price you get a lens that has reasonable sharpness, and an effective macro. There are much cheaper lenses out there and much more expensive ones too. If you are looking for a good zoom lens at a reasonable price, you should put this on your list of top contenders." bhphotovideo.com

Great telephoto lens 300 mm

	Fisheye	No			Image stabilization	None
	Fixed aperture	No			Zoom range	4.3x
	Max focal length	300 mm			Length	120 mm
	Aperture	f/4			Diameter	77 mm