Minolta Circular Polarizer (49mm) series 7 Note when selecting from below:

Note when selecting from below: a higher diopter number means higher magnification

though that part is long gone

This is the 7-element version

and some minor dust in the glass

and image stabilizer to minimize image blurring caused by camera shake

Minolta Circular Polarizer (49mm) series 7 Note when selecting from below:This is a high quality Minolta brand circular polarizer, designed to fit lenses with a 49mm filter thread. Polarizers reduce glare and reflections; the circular variety (vs the linear) is required for autofocus SLR cameras, but can be used on any type of camera. In excellent condition. Image is for illustrative purposes only. Actual item may vary slightly.