Sigma Lenses for less than $500 that have a 100mm or longer focal length

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

	Max focal length	300 mm			Aperture	f/4
	Zoom range	4.3x			Length	119 mm
	Image stabilization	None			Diameter	76 mm
	Min focal length	70 mm			Weight	0.6 kg

"This inexpensive zoom is solidly built, operates smoothly and has minimal chromatic aberration (purple fringing'). Very useful outdoors and for general telefoto purposes. I expected softness at the end of the zoom range but was pleasantly surprised (!). Allows me to find interesting faces in a crowd and capture fine details of remote objects (e.g. when filming architectural curiosities). Not too heavy and, when attached to a A700, balances well. The lens does not creep and requires just the right amount of force in changing the focal length" bhphotovideo.com

	Max focal length	300 mm			Aperture	f/4
	Zoom range	4.3x			Length	120 mm
	Image stabilization	None			Diameter	77 mm
	Min focal length	70 mm			Weight	0.5 kg

"The lens focus is very fast and allows you to take sharp pictures" bhphotovideo.com

	Max focal length	300 mm			Aperture	f/4
	Zoom range	4.3x			Length	120 mm
	Image stabilization	None			Diameter	77 mm
	Min focal length	70 mm			Weight	0.5 kg

"I think The Sigma 70-300mm 4-5.6 DG Macro lens is the most compact and economical choice for a telephoto zoom lens. It has Consistent Output, Durable, Easily Interchangeable, Quick and Sharp Focus, its Construction is Rugged and Strong" bhphotovideo.com

	Max focal length	300 mm			Aperture	f/4
	Zoom range	4.3x			Length	120 mm
	Image stabilization	None			Diameter	76 mm
	Min focal length	70 mm			Weight	0.5 kg