Sony Alpha DT Lenses made by Sigma 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			Max focal length	50 mm
	Zoom range	2.9x			Aperture	f/2.8
	Fixed aperture	Yes			Weight	0.6 kg
	Focus motor	Sigma HSM			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			Max focal length	50 mm
	Zoom range	2.8x			Aperture	f/2.8
	Fixed aperture	No			Weight	395 g
	Focus motor	Sigma HSM			Min focal length	18 mm

"Captured tons of amazing shots of birds and wildlife. Images crisp, clear; even at 200mm.- Great quality, easy to focus, quick focus, good aperture.- No cons."

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

"The telephoto capabilities of this lens are great and the wide-angle aspects at 18-24 area make this a multipurpose daily go everywhere lens."

Great zoom range 13.9x

Great telephoto lens 250 mm

	Image stabilization	Sigma OS			Max focal length	250 mm
	Zoom range	13.9x			Aperture	f/3.5
	Fixed aperture	No			Weight	0.6 kg
	Focus motor	Sigma HSM			Min focal length	18 mm