Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical (IF) A13
Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical (IF) A13 is a auto focus wide angle zoom lens for aps-c cameras.
Full frame equivalent focal length is 16.5-27.0 mm. Has 7 aperture blades, mid-grade lenses usually have this amount of blades. Having rounded blades provides out of focus circle shape closer to a circle.
77 mm lens filter diameter, commonly filter size, you have plenty of possibilities this lens deserves a good quality filter. 78 mm long, requires consideration if you want to carry in the camera bag. Weights 345 grams so plan ahead, carry only if really necessary.