GREEN.L CPL 40.5mm

GREEN.L CPL 40.5mm | Cut reflections from water and glass

Bright reflections can hide detail in a lake or turn a shop window into a mirror. A circular polarizing filter, or CPL, is made to reduce that kind of glare and can also deepen the appearance of a blue sky. The GREEN.L CPL 40.5mm is for photographers who want more control over reflections in outdoor scenes, around water, or when photographing through glass. Its 40.5mm size is the key detail to match: look for the filter-thread diameter marked on your lens. When the numbers match, you can use the filter on that lens. The effect depends on the angle of the light, so a polarizer won’t remove every reflection in every situation. It’s a practical tool for scenes where reflected light is getting in the way, rather than a filter you need on every lens or for every shot.

What a CPL can do

• Reduce reflections from surfaces such as water and glass, helping more of the scene show through.
• Change the appearance of a blue sky by reducing some reflected light.
• Give you control over the effect: adjust the filter while viewing the scene and stop when the reflection looks right.

Using it in the field

For a view across a pond, adjust the filter while framing until the water’s surface reflection is reduced and detail beneath it becomes easier to see. At a window, use the same approach to lessen reflections and reveal more of what’s behind the glass. The result varies with your position relative to the light, so small adjustments can make a noticeable difference.

Technical Specifications

• Brand: GREEN.L
• Filter type: CPL
• Filter size: 40.5mm