Tamron AF 28-200mm f/3.8-5.6 Aspherical LD IF 171D
Tamron AF 28-200mm f/3.8-5.6 Aspherical LD IF 171D is a auto focus telephoto zoom lens for full frame cameras.
Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.
72 mm lens filter diameter, commonly filter size, you have plenty of possibilities this lens deserves a good quality filter. Weights 490 grams so plan ahead, carry only if really necessary. 82 mm long, requires consideration if you want to carry in the camera bag.