Here's a high quality and tiny filter set for black and white photography. They are have 22.5mm threading.
The set included an ND 4x, a yellow Y52, an orange O56, and a red R60 filter.
They are all in excellent condition with light wear. The glass is clean and scratch-free with no haze, fungus or other problems. The mounts show light wear.
The nice plastic case is included.
SKU: 231121-11
