Vivitar 28-200mm f/3.5-5.3 (Kobori)

Vivitar 28-200mm f/3.5-5.3 (Kobori) is a manual focus telephoto zoom lens for full frame cameras.

Optical design

Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.

Physical characteristics

118 mm long, requires consideration if you want to carry in the camera bag. Weights 665 grams so it is a heavy lens, consider using its own lens bag. With a lens filter diameter of 72 mm you are one step from the next standard filter size, buy step-up ring and bigger filter but you can chose from plenty options.