Optical Glass,Extra Long Outer Screw Thread Design.Ultra light and high hardness Aluminum Rings, Seamless pressure to spin into the structure.
Reduce the non-metallic surfaces reflect light to improve picture quality. Can shot directly through the windows, and to reduce the reflective surface of the water also makes the trees and grass more good-looking. Can change the color of the sky darker in color shooting without affecting the color balance. Can be rotated to different angles to obtain different degrees of the polarizing effect.
- 1 * Pixel Circular Polarizer Filter CPL 49mm
- 1 * lens cap
EffectCamera: Nikon D90 Lens: Nikon 24-70mm 1: 2.8G ED
Why do I need a circular polarizer?
As you progress further into photography you might have gotten to a point where you’re looking into how filters can improve your images. There are many different filters that can solve different problems. There are Neutral Density (ND) filters that can be employed to slow down your shutter speed. Maybe it’s a bright day and you want some motion blur on a waterfall, you could either use a ND filter or you could just forget the filter and shoot when the light is good. I know there are cases when you have to use an ND, but they can often be avoided by shooting at a different time of day.
What does a CPL do?
The first thing people discover they can do with their CPL is darken the sky to create more impact and make the clouds more dramatic. While this is useful, you have to be exactly 90 degrees from the sun in order for the effect to work evenly across the whole sky. You’ll see instances where only one corner of your sky is darkened when you’re positioned at a different angle. In my work, the composition is everything, so I’m not going to move around to get a weaker composition in order to maximize the polarizing affect on the sky. I prefer to darken the sky in post production by adding black to the blue channel. This trick looks natural and you aren’t plagued by it only working in a single corner. So I don’t usually use a CPL to darken my skies because I can usually do a better job in post.
The next thing people learn they can do is eliminate reflections on water. I shoot a lot of water and the impact of being able to see past the reflection showing the rocks and detail below cannot be replicated in post production. This is a great way to use your CPL and I use it for this all the time.
What you didn’t know a CPL can do?
Now, lets talk about something most articles don’t teach you about CPLs. Light reflects off of all sorts of surfaces. Everything from rocks to leaves. If white light is reflecting off of the fall leaves or cobble stones at a beach, the original color of the object is getting drowned out with the reflection. This obviously hurts the color saturation and while you can always try to get that back in post, it doesn’t have the same natural feel of getting the color right off the leaves themselves. So use a CPL for color saturation.
Contrast is also compromised significantly. It’s common for an un-polarized image to have the shadows masked by reflections. This shifts the histogram towards the highlights. So by eliminating the reflections, more shadow detail is allowed to come through. This also relates to color saturation. In order for color to be rich and full of body, you need black. So use a CPL for image contrast.