This B&W 40.5mm 061 Dark Green 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.
• Especially useful for clear contrast between blue sky with clouds and foreground
• Recommended as a basic filter for use with Kodak Aero Ektachrome Infrared film