Canon EOS Rebel T1i Zoom Wildlife lenses that have a Sigma HSM focus motor

"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

Wide aperture f/2.8

	Focus motor	Sigma HSM			Fixed aperture	Yes
	Length	269 mm			Zoom range	2.5x
	Max focal length	300 mm			Aperture	f/2.8
	Weight	2.6 kg			Image stabilization	None

"This is one of the finest zoom lenses I own in terms of optical performance. The HSM focusing is very fast and on a monopod the lens is easy to control."

Fixed aperture The same aperture at all focal lengths

	Focus motor	Sigma HSM			Fixed aperture	Yes
	Length	224 mm			Zoom range	3x
	Max focal length	300 mm			Aperture	f/4
	Weight	1.5 kg			Image stabilization	None

"Best for bird watchers and sports photography. Fast auto focus."

Great zoom range 10x

Great telephoto lens 500 mm

	Focus motor	Sigma HSM			Fixed aperture	No
	Length	219 mm			Zoom range	10x
	Max focal length	500 mm			Aperture	f/4.5
	Weight	2 kg			Image stabilization	Sigma OS

"I love this lens, bought it primarily for wildlife. Tack sharp images of antelope while braced against nothing but the frame of my car window (with the car engine running!) at ISO 100 with Optical Stabilization turned on. "

	Focus motor	Sigma HSM			Fixed aperture	No
	Length	204 mm			Zoom range	3.3x
	Max focal length	400 mm			Aperture	f/4.5
	Weight	1.7 kg			Image stabilization	Sigma OS

"Great for close ups of action (sports), wildlife and portraits."

Quite short 102 mm

	Focus motor	Sigma HSM			Fixed aperture	No
	Length	102 mm			Zoom range	4x
	Max focal length	200 mm			Aperture	f/4
	Weight	n/a			Image stabilization	Sigma OS

"Things I love about this lens: 1. being able to frame my subjects, 2. being able to zoom out and find my subject in the view finder and then zoom in on them (useful for moving subjects), 3. prime like sharpness and contrast throughout the zoom range (even when shooting wide open)"

Great telephoto lens 800 mm

Fixed aperture The same aperture at all focal lengths

	Focus motor	Sigma HSM			Fixed aperture	Yes
	Length	542 mm			Zoom range	2.7x
	Max focal length	800 mm			Aperture	f/5.6
	Weight	5.9 kg			Image stabilization	None

"A GREAT PIECE OF EQUIPMENT AT A FAIR PRICE.A LITTLE HEAVY. GOOD QUALITY PICTURES IN GOOD SUNLIGHT."

Great telephoto lens 500 mm

	Focus motor	Sigma HSM			Fixed aperture	No
	Length	252 mm			Zoom range	3.3x
	Max focal length	500 mm			Aperture	f/5
	Weight	1.9 kg			Image stabilization	Sigma OS