What is a circular PL filter?

A circular polarizing filter is a photographic filter that is attached to a lens in order to cut down glare and reflections as well as darken a blue sky. Polarizers work by stopping light from passing through the lens randomly from any wave angle, and only allowing one polarized wavelength of light to pass through.

How do you use a circular filter?

A circular polarizing filter screws onto the front of the camera lens and has two rings that rotate. To use a polarizer, simply twist the front ring to activate polarization. Set your focus, then find the point of maximum polarization.

What is the difference between PL and CPL filter?

Whether you choose a CPL filter or a linear polarizer is largely down to the type of camera you own. In general, CPL filters are more versatile than linear types. CPL filters are suitable for all digital cameras, but a linear polarizer won’t work on DSLR cameras.

What is the difference between circular and linear polarization?

Linear polarization refers to light that oscillates in a single direction. Circular polarization refers to light that rotates at a constant speed—if you could view those wavelengths with your eye they would look a little bit like a corkscrew.

What do Hoya filters do?

Hoya’s Starscape light pollution filter, AKA Intensifier, is used to reduce the orange/yellow glow created by common street lamps. Great for astro and urban landscape photographers that want to improve the color in their images.

When should I use a circular polarizer?

When photographing waterfalls and rivers – The Circular Polarizer is a favorite among landscape photographers when photographing rivers and streams. Not only does it remove the glare and reflections from wet surfaces, it also enhances the colors of the landscape around.

When would you use a PL Cir filter?

One of the most common uses of a circular polarizing lens filter is to reduce reflections from non-metallic surfaces. Any outdoors photographer will be only too familiar with the irritation of reflections, particularly when it’s very bright or sunny. These reflections can easily distract from a photo’s subject.

When should you not use a circular polarizer?

Bear in mind that a polarising filter will reduce the amount of light reaching your camera’s sensor by as much as two or three f-stops, so you should avoid using one in low light situations. This includes during blue hour, when shooting at night, or when photographing the Aurora Borealis.

What is difference between circular and linear polarization?

Linear polarization: the electric field of light is confined to a single plane along the direction of propagation (Figure 1). Circular polarization: the electric field of the light consists of two linear components that are perpendicular to each other, equal in amplitude, but have a phase difference of π/2.