This B&W 52 mm 061 Green Slim Glass filter differs from the Yellow-Green filter primarily because of its increased red attenuation. A red roof or red flowers will become even darker, as will red lips and a dark tan. Unfortunately, so will skin blemishes.
This filter is ideal for nature photography. In object photography, it is good for darker reds and lighter greens.
B&W slim filters are for wide-angle lenses and are 3mm thick. They do not have a front thread.