| | Sony Alpha DT Lenses made by Tamron for less than $500 that are 18mm or wider | | |  | "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 | | | Aperture | f/2.8 | | | | | | | Zoom range | 2.9x | | | Length | 81 mm | | | | | | | Fixed aperture | Yes | | | Diameter | 74 mm | | | | | | | Max focal length | 50 mm | | | Weight | 430 g | | | | | | | | | | |  | "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 | | Min focal length | 18 mm | | | Aperture | f/3.5 | | | | | | | Zoom range | 11.1x | | | Length | 84 mm | | | | | | | Fixed aperture | No | | | Diameter | 74 mm | | | | | | | Max focal length | 200 mm | | | Weight | 398 g | | | | | | | |  | | | | | Great telephoto lens | | | 270 mm | | | | Min focal length | 18 mm | | | Aperture | f/3.5 | | | | | | | Zoom range | 15x | | | Length | 97 mm | | | | | | | Fixed aperture | No | | | Diameter | 74 mm | | | | | | | Max focal length | 270 mm | | | Weight | 450 g | | | | | | | | | | |  | "The panoramic views of the countryside are outstanding in their scope and clarity." bhphotovideo.com | | Min focal length | 10 mm | | | Aperture | f/3.5 | | | | | | | Zoom range | 2.4x | | | Length | 99 mm | | | | | | | Fixed aperture | No | | | Diameter | 79 mm | | | | | | | Max focal length | 24 mm | | | Weight | 406 g | | | | | | | | |
