Tamron Lenses for less than $500 that have a generic focus motor and are 18mm or wider

"This is a fantastic lens! Great versatility, sharpness, focus and ease of use. Fabulous photos!" bhphotovideo.com

Great zoom range 11.1x

	Min focal length	18 mm			Max focal length	200 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	11.1x			Aperture	f/3.5
	Fixed aperture	No			Diameter	74 mm

"This is my first wide angle zoom and I don't see a reason to purchase another. Color and contrast are great, good edge to edge sharpness. Zoom ring is tight and well dampened." bhphotovideo.com

	Min focal length	10 mm			Max focal length	24 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	2.4x			Aperture	f/3.5
	Fixed aperture	No			Diameter	79 mm

"I like the durability and the low profile. The pictures are good." bhphotovideo.com

Great zoom range 11.1x

	Min focal length	18 mm			Max focal length	200 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	11.1x			Aperture	f/3.5
	Fixed aperture	No			Diameter	74 mm

"I have had this lens for only a few weeks, but it's definitely become my primary lens for my D90. I really like the weight and size." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

	Min focal length	17 mm			Max focal length	50 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	2.9x			Aperture	f/2.8
	Fixed aperture	Yes			Diameter	74 mm

"An excellent lens-especially for the price. The constant f2.8 maximum aperture makes it a first class, low light addition. It is solidly constructed and should last quite a while." bhphotovideo.com

Fixed aperture The same maximum aperture at all focal lengths

	Min focal length	17 mm			Max focal length	50 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	2.9x			Aperture	f/2.8
	Fixed aperture	Yes			Diameter	74 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." bhphotovideo.com

Great zoom range 11.1x

	Min focal length	18 mm			Max focal length	200 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	11.1x			Aperture	f/3.5
	Fixed aperture	No			Diameter	74 mm

"It's well built and feels very solid. It's lighter than I thought. Focus is precise, reasonably fast and silent." bhphotovideo.com

	Min focal length	10 mm			Max focal length	24 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	2.4x			Aperture	f/3.5
	Fixed aperture	No			Diameter	79 mm

"The panoramic views of the countryside are outstanding in their scope and clarity." bhphotovideo.com

	Min focal length	10 mm			Max focal length	24 mm
	Focus motor	Generic motor			Image stabilization	None
	Zoom range	2.4x			Aperture	f/3.5
	Fixed aperture	No			Diameter	79 mm