Polarizers are filters that look gray to the eye but have the extra physical attribute of being able to darken light that is polarized at a 90 angle different from the filter 's own angle.
Light becomes polarized as it glints off of water,polished surfaces,glass,leaves,graphics,ceramics -anything that can create glare except for one thing:metal surfaces.Blue sky also polarizes light,and the portion of the sky that is 90 from the sun is quite responsive to a polarizing filter.Polarized sunglasses may be tinted,but polarizing filters are neutral gray and tend to make colors look more vivid when the glossy reflection from surfaces is canceled. The way you use it is straightforward.You must be able to see the camera monitor well,otherwise the effect may be lost to your eye.Outdoors,that means being in deep shade or having a viewing hood or focusing magnifier accessory on the
camera.The filter is attached normally and rotated in its free-wheeling mount.Glare reflections and sky color will brighten and dim as you turn the filter.Turn it to where the image of the sky looks darkest,and you will have the effect in your shot.If you are shooting into water at a steep angle,about 45 ,you can erase the reflection of the sky to a marked degree by turning the filter until the water looks clearer.
"Circular polarizers "are filters that have a special material on the camera side of the filter called a "retarder plate."It tumbles the emerging photons in a way that can't be seen with your eye,but which is helpful inside the camera.Two linear polarizers can be crossed to extinguish the light flowing through
them,but two circular polarizers behave differently.In fact,a single linear polarizer held up to a mirror
will look merely gray to your eye as you look through it at its own reflection,but a circular polarizer will look gray only when observed from behind .Turn the filter over and the reflection will darken the way two crossed regular polarizing filters do.Amazing but true.
Light becomes polarized as it glints off of water,polished surfaces,glass,leaves,graphics,ceramics -anything that can create glare except for one thing:metal surfaces.Blue sky also polarizes light,and the portion of the sky that is 90 from the sun is quite responsive to a polarizing filter.Polarized sunglasses may be tinted,but polarizing filters are neutral gray and tend to make colors look more vivid when the glossy reflection from surfaces is canceled. The way you use it is straightforward.You must be able to see the camera monitor well,otherwise the effect may be lost to your eye.Outdoors,that means being in deep shade or having a viewing hood or focusing magnifier accessory on the
camera.The filter is attached normally and rotated in its free-wheeling mount.Glare reflections and sky color will brighten and dim as you turn the filter.Turn it to where the image of the sky looks darkest,and you will have the effect in your shot.If you are shooting into water at a steep angle,about 45 ,you can erase the reflection of the sky to a marked degree by turning the filter until the water looks clearer.
"Circular polarizers "are filters that have a special material on the camera side of the filter called a "retarder plate."It tumbles the emerging photons in a way that can't be seen with your eye,but which is helpful inside the camera.Two linear polarizers can be crossed to extinguish the light flowing through
them,but two circular polarizers behave differently.In fact,a single linear polarizer held up to a mirror
will look merely gray to your eye as you look through it at its own reflection,but a circular polarizer will look gray only when observed from behind .Turn the filter over and the reflection will darken the way two crossed regular polarizing filters do.Amazing but true.
