Wood and metal paints polarize the light so you should use a polarizing filter. Protective lacquers do the same. A CPL filter is also great on any type of glass.
It will get rid of the reflection, making the objects behind the glass visible. Think of paintings or exhibits , for example. The CPL filter is not all-powerful though. Glass is difficult to photograph due to the reflection. You might get a leftover reflective residue. Another classic effect of the CPL filter is to darken and saturate the sky. It will result in an intense blue sky with a gradient sloping towards the horizon line. You can see an example of this effect on the sky on clear days with strong contrasts given by the clouds.
The effect is more significant by placing the sun to the side of the shooting point. You will attenuate the effect of the filter if the sun is at your back. During sunrise and sunset or on very cloudy days it is difficult to darken the sky and polarize the light.
Last consideration in colors. A CPL filter can saturate colors. Removing reflections and filtering the light leads to this effect. It also removes the white glow of incandescent light from leaves. It makes them a pleasant uniform green color. It is also a must-have accessory if you are shooting an interior with reflective surfaces or you just want to protect your front element.
They force you to use a slower shutter speed , wider aperture, or higher ISO to compensate. For this reason, circular polarizers should be avoided when handholding your camera in low light. Simply screw it on to your lens, and turn it in different directions.
But the sky on the horizon—90 degrees from the overhead sun—is going to be strongly polarized, resulting in a much darker blue. So make sure to pay attention to the angle of the sun, and minimize this effect as much as possible. The higher the filter quality, the less the filter will affect your images.
And low quality filters will only serve to introduce unpleasant flare and sharpness issues into your images. I mentioned previously that you lose stops of light when using a CPL filter where the precise amount of light you lose depends on the filter.
Remember how different parts of the sky are polarized differently, depending on the angle of the sun? Note that this indicates that stops of light the filter will reduce.
A factor of 2x reduces the light by 1 stop, a factor of 4x reduces the light by 2 stops, and so on. Linear polarizers can polarize the light before it reaches the camera sensor, but circular polarizers include an extra step:.
They adjust the light further, so that it can be used effectively by autofocus and metering systems. A rainbow is actually just reflected light, so if you stick a polarizer on your lens, the rainbow will vanish. Simply take your CPL filter off, and it will reappear.
This results in an uneven polarizing effect in your photo. However, if you use a wide angle lens, you might not get an even color throughout the sky with a circular polarizing lens filter.
Therefore, stick to a lens no wider than around 24mm. In fact, when you use a circular polarizing lens filter, you are effectively editing your images in real-time. This saves precious time by not needing to use post-editing software later on.
Their ease of use, flexible applications and simple mechanics make for a low-risk, high-reward investment towards creating stronger, more captivating imagery. They allow you to cut light and reflections, enhance clarity and color, and create images that border on the surreal. They can give your photos more depth, drama and intensity without requiring any additional effort on your part. Whilst UV filters probably make for the best protective filter, the many benefits of CPL filters make for a compelling reason to add them as a fixture in your kit bag.
Did you know Urth makes CPL filters that help stem deforestation? Five trees are planted in deforested areas for every filter purchased. Shop our range of CPL filters here. Share this story Facebook Twitter Copy link. A masterclass on polarizing lens filters otherwise known as a CPL filter and how they can help take your photography to the next level. Words and Photography by Urth HQ. How does it help? Polarized light comes from light that has been reflected off of something. Can come from light reflecting off an alpine lake, reflections from a coffee shop window, or even light reflecting off moisture and pollution in the atmosphere.
Bluer skies, greener trees, and super sharp clarity in your final image. Of course I work for Moment and believe we make top-quality products. We packed our to-go coffees and tea, strapped our beloved cameras around our neck, and drove an hour East to a place where reflective surfaces and sunny skies cover the atmosphere.
However, I immediately gasped once I took off the filter, kept the same camera settings, and truly saw the difference it made having it on versus not at all. See below for a side by side difference. Get rid of unwanted glare!
Master light with the Moment AntiGlare CPL filters which help to control reflections, boost colors, and mitigate shadows.
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