Sony Alpha DSLR-A300 Lenses that have image stabilization

"Sigma's new Optical Stabilizer is very effective. Focus is pretty much instantaneous, and silent."

Fixed aperture The same aperture at all focal lengths

	Image stabilization	Sigma OS			Length	n/a
	Fixed aperture	Yes			Weight	0.6 kg
	Max focal length	50 mm			Focus motor	Sigma HSM
	Aperture	f/2.8			Min focal length	17 mm

"This is a very functional lens in low light situations when using a monopod. I used it for a show inside of an event center with a lot of success (if you are looking for motion blur in your action shots). Overall I really like the lens and would recommend it."

	Image stabilization	Sigma OS			Length	n/a
	Fixed aperture	No			Weight	395 g
	Max focal length	50 mm			Focus motor	Sigma HSM
	Aperture	f/2.8			Min focal length	18 mm

"Wow, Great lens from 120 to 400mm nice photos and pretty fast for under $1000.00 lens."

Great telephoto lens 400 mm

	Image stabilization	Sigma OS			Length	204 mm
	Fixed aperture	No			Weight	1.7 kg
	Max focal length	400 mm			Focus motor	Sigma HSM
	Aperture	f/4.5			Min focal length	120 mm

"This is a great value lens, and in my opinion can't be beat for the price. I photograph everything from wildlife to portraits to flowers and macro shots to landscapes. While this is not a do all lens, it fits right in and works for anything that fits within its 50-200mm zoom range. The build quality is also exceptional at the price, with no slop in the workings of the lens. It also comes with a lens hood that conveniently stores backwards on the lens. The focus is internal, so it good for polarized filters, tulip hoods, etc. All in all a great lens for the price."

Quite short 102 mm

	Image stabilization	Sigma OS			Length	102 mm
	Fixed aperture	No			Weight	n/a
	Max focal length	200 mm			Focus motor	Sigma HSM
	Aperture	f/4			Min focal length	50 mm

"I took it to Yellowstone on my first outing with it. I got some great shots of many aminals off in the distance."

Great telephoto lens 500 mm

	Image stabilization	Sigma OS			Length	252 mm
	Fixed aperture	No			Weight	1.9 kg
	Max focal length	500 mm			Focus motor	Sigma HSM
	Aperture	f/5			Min focal length	150 mm

"Managed to take some great bird's photograph. Heavy though but manageable. Great stuff!"

	Image stabilization	Sigma OS			Length	127 mm
	Fixed aperture	No			Weight	0.6 kg
	Max focal length	300 mm			Focus motor	None
	Aperture	f/4			Min focal length	70 mm