Polarizing Filters
Jan 8, 2018 21:54:17 #
Jan 8, 2018 22:12:03 #
Jan 8, 2018 22:26:04 #
Jan 8, 2018 22:40:56 #
Those that know how to use a polarizing filter, YES. Those who shot film years ago probably know this better than those who started with digital with the do everything controls.
A polarizing filter changes the light quality before it hits the lens while camera controls and post editing change the light after. A very useful tool.
A polarizing filter changes the light quality before it hits the lens while camera controls and post editing change the light after. A very useful tool.
Jan 8, 2018 22:57:53 #
A CPL is a must-have. It is great for landscapes, where you can not only remove reflections from any non-metallic surfaces like water or glass, but it is also great for foliage. You will be surprised how much adding or removing reflections from leaves or grass will change their colour, and your image. Give one a try. Your images will thank you.
Jan 9, 2018 00:16:40 #
Jan 9, 2018 00:34:30 #
Jan 9, 2018 03:11:33 #
Pablo8
Loc: Nottingham UK.
RWR wrote:
As with any other type of filter, I do my utmost to avoid their use.
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Then I think you are missing-out in some / many areas of photography.
Jan 9, 2018 04:39:06 #
Jan 9, 2018 05:44:34 #
Jan 9, 2018 05:48:29 #
billnikon
Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
dalbers wrote:
Are these filters as popular today as they were some years back?
Thanks all.
Thanks all.
With the advent of PP, NO. Proper use of this filter will still cut down on post processing time, and it is still effective for reflections.
Jan 9, 2018 07:08:00 #
dalbers wrote:
Are these filters as popular today as they were some years back?
Thanks all.
Thanks all.
Definitely, and they should be in every serious photographer's kit.
Jan 9, 2018 08:51:56 #
You know, when using my Nikon cameras I do need a polarizer for its intended use but when I use my Olympus bodies I can get by without it. Go figure.
For some reasons the sky tends to be better rendered with my Olympus bodies without using the polarizer. Darkening the sky today is easy using software.
I am sure polarizers are as popular as they were.
For some reasons the sky tends to be better rendered with my Olympus bodies without using the polarizer. Darkening the sky today is easy using software.
I am sure polarizers are as popular as they were.
Jan 9, 2018 08:52:04 #
RWR wrote:
As with any other type of filter, I do my utmost to avoid their use.
Then you are avoiding one of the most useful tools in optics!
Jan 9, 2018 09:01:46 #
There are two types of polarizing filters: linear polarizers and circular polarizers. "Some years back" (i.e. in the film era) the linear polarizers were probably the only ones available for photography. Circular polarizers were for use in optics laboratories. During the later film era, when autofocus started to become available, and now in the digital era, the circular polarizers are what is needed.
Reflections from dielectric (non-metallic) surfaces can change the polarization of light. Unpolarized light can be thought of as polarized light with two orthogonal components with a random phase relationship. A reflection can change the relative amplitude of those two components, and if that happens it could screw up the autofocus or autoexposure sensors.
As far as the image is concerned, the circular polarizer does the same thing that the old linear polarizer did: darken the sky (under certain conditions) and reduce reflections from dielectric surfaces (such as water). As such, they are just as useful as they were years ago.
Reflections from dielectric (non-metallic) surfaces can change the polarization of light. Unpolarized light can be thought of as polarized light with two orthogonal components with a random phase relationship. A reflection can change the relative amplitude of those two components, and if that happens it could screw up the autofocus or autoexposure sensors.
As far as the image is concerned, the circular polarizer does the same thing that the old linear polarizer did: darken the sky (under certain conditions) and reduce reflections from dielectric surfaces (such as water). As such, they are just as useful as they were years ago.
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