Sony Alpha DSLR-A100 Zoom Telephoto lenses made by Tamron

"I love this lens! While it is a little heavy (I agree with the others), you get use to that quickly because of the quality."

Fixed aperture The same aperture at all focal lengths

Wide aperture f/2.8

	Zoom range	2.9x			Max focal length	200 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	Yes			Aperture	f/2.8
	Length	194 mm			Min focal length	70 mm

"One of the best 55-200's for the price. Lightweight, compact, 1/2 the price of the sony comp. lens, with just as good quality."

	Zoom range	3.6x			Max focal length	200 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	No			Aperture	f/4
	Length	83 mm			Min focal length	55 mm

"I bought this lens to replace a 70-300mm Quantary for my Sony 350 and I just love it! I like the fact that I don't have to remove the lens when I need up close shots."

Great zoom range 10.7x

	Zoom range	10.7x			Max focal length	300 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	No			Aperture	f/3.5
	Length	84 mm			Min focal length	28 mm

"Overall I have been happy with the lens and and the quality of the photos I have gotten while using this lens."

	Zoom range	7.1x			Max focal length	200 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	No			Aperture	f/3.8
	Length	76 mm			Min focal length	28 mm

"Picture quality is excelent, zoom is great. Overall quality seems decent."

	Zoom range	4.3x			Max focal length	300 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	No			Aperture	f/4
	Length	117 mm			Min focal length	70 mm

"I've been using this lens to photograph mainly butterflies and I'm very pleased with the quality and sharpness of the photos with the use of this lens."

Great zoom range 11.1x

	Zoom range	11.1x			Max focal length	200 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	No			Aperture	f/3.5
	Length	84 mm			Min focal length	18 mm

"This is my fifth Tamron lens and I have been very happy with all of them. Up until now my favorite lens was my 70-200 f2.8 Tamron but now I think my 200-500 is my new favorite."

Great telephoto lens 500 mm

	Zoom range	2.5x			Max focal length	500 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	No			Aperture	f/5
	Length	227 mm			Min focal length	200 mm

"Takes great pictures during daylight, acceptable during evening or low light. Has a very nice feel and includes a lens hood to prevent flaring."

	Zoom range	4x			Max focal length	300 mm
	Focus motor	None			Image stabilization	None
	Fixed aperture	No			Aperture	f/4
	Length	n/a			Min focal length	75 mm