Asanuma 17mm f/3.5
Asanuma 17mm f/3.5 is a manual focus wide angle 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. Average brightness in this league
80 mm long, requires consideration if you want to carry in the camera bag. 72 mm lens filter diameter, commonly filter size, you have plenty of possibilities this lens deserves a good quality filter. Weights 330 grams so plan ahead, carry only if really necessary.