Canon EOS 550D Lenses made by Sigma that have a focus motor

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

More advanced image stabilization Sigma OS

Fixed aperture The same aperture at all focal lengths

	Focus motor	Sigma HSM			Max focal length	50 mm
	Fisheye	No			Aperture	f/2.8
	Image stabilization	Sigma OS			Min focal length	17 mm
	Length	n/a			Weight	0.6 kg

"I was completely surprised at the focus accuracy - not a single miss-focus due to the lens. Autofocus was more than fast enough for action shots. This lens is very sharp and with the speed and accuracy of the autofocus it can easily be used for close sport events. Built quality is very good. Macro is excellent, as expected. The mount and hood that comes with the lens is a huge plus."

	Focus motor	Sigma HSM			Max focal length	150 mm
	Fisheye	No			Aperture	f/2.8
	Image stabilization	None			Min focal length	150 mm
	Length	137 mm			Weight	0.9 kg

"Consistent output, fast/accurate auto-focus, nice bokeh, strong construction."

More advanced image stabilization Sigma OS

Fixed aperture The same aperture at all focal lengths

	Focus motor	Sigma HSM			Max focal length	200 mm
	Fisheye	No			Aperture	f/2.8
	Image stabilization	Sigma OS			Min focal length	70 mm
	Length	n/a			Weight	1.4 kg

"I love that a lens in this price-range will go to f/1.4 - it provides great bokeh and is very good for indoors in low light. Pictures in churches and museums have turned out especially well."

Wide aperture f/1.4

Quite short 59 mm

	Focus motor	Sigma HSM			Max focal length	30 mm
	Fisheye	No			Aperture	f/1.4
	Image stabilization	None			Min focal length	30 mm
	Length	59 mm			Weight	430 g

"Excellent in low light conditions. Super fast, quiet and precise focus."

Wide aperture f/1.4

Quite short 68 mm

	Focus motor	Sigma HSM			Max focal length	50 mm
	Fisheye	No			Aperture	f/1.4
	Image stabilization	None			Min focal length	50 mm
	Length	68 mm			Weight	0.5 kg

"ve had this lens for over a year and I have to say it's a fantastic piece of kit. It has a unique zoom range for a f/2.8 lens."

Fixed aperture The same aperture at all focal lengths

Great telephoto lens 300 mm

	Focus motor	Sigma HSM			Max focal length	300 mm
	Fisheye	No			Aperture	f/2.8
	Image stabilization	None			Min focal length	120 mm
	Length	269 mm			Weight	2.6 kg

"I have been shooting sport photos for a while now and was looking for something new to spice up the images. I wasn't sure how I could use the fisheye but now I have had a chance to use it... wow. I can get some excellent images from a perspective I have never used before. I love this lens."

Fisheye Extremely wide circular images

Quite short 78 mm

Wide angle lens 4.5 mm

	Focus motor	Sigma HSM			Max focal length	4.5 mm
	Fisheye	Yes			Aperture	f/2.8
	Image stabilization	None			Min focal length	4.5 mm
	Length	78 mm			Weight	470 g

"I had this lens for about 2 weeks now and it has been fabulous."

	Focus motor	Sigma HSM			Max focal length	180 mm
	Fisheye	No			Aperture	f/3.5
	Image stabilization	None			Min focal length	180 mm
	Length	182 mm			Weight	1 kg

"I use this for primarily bmx photos. It has great colors and is very sharp. Good distortion and fast focusing!"

Fisheye Extremely wide circular images

Quite short 83 mm

Wide angle lens 10 mm

	Focus motor	Sigma HSM			Max focal length	10 mm
	Fisheye	Yes			Aperture	f/2.8
	Image stabilization	None			Min focal length	10 mm
	Length	83 mm			Weight	n/a

"No matter where I sit in the high school gyms in the area I am able to take terrific pictures and have outstanding clarity"

Fixed aperture The same aperture at all focal lengths

	Focus motor	Sigma HSM			Max focal length	70 mm
	Fisheye	No			Aperture	f/2.8
	Image stabilization	None			Min focal length	24 mm
	Length	95 mm			Weight	n/a