RARE! Genuine Minolta AC CLR 114mm front protection filter to suit APO G 300mm f2.8 lenses, including SSM & Sony G models.Coatings are good, threads are good. Minor signs of use on the front of the metal ring, check photos.
This is an excellent condition optic.
If you are looking at this you know how hard it is to find one for sale. Don't delay because you know Minolta wont be making these ever again!