LINEAR POLARIZING FILTER - POLARIZING FILTER

Linear polarizing filter - Changing fuel filter - Fram extended guard oil filter review

Linear Polarizing Filter


linear polarizing filter
    linear polarizing
  • (linear polarization) a nondestructive testing method to determine the instantaneous corrosion rate of the concrete reinforcement located below the test point by measuring the current required to change by a fixed amount the potential difference between the reinforcement and a standard reference
  • (Linear polarizer) A polarizer is a device that converts a beam of electromagnetic waves (light) of undefined or mixed polarization into a beam with well-defined polarization. The common types of polarizers are linear polarizers and circular polarizers.
  • (Linear Polarization) The polarization method in which the signal is transmitted in a vertical or horizontal sequence. Used by most FTA Ku-band and C-band channels.
    filter
  • A porous device for removing impurities or solid particles from a liquid or gas passed through it
  • device that removes something from whatever passes through it
  • remove by passing through a filter; "filter out the impurities"
  • an electrical device that alters the frequency spectrum of signals passing through it
  • A device for suppressing electrical or sound waves of frequencies not required
  • A screen, plate, or layer of a substance that absorbs light or other radiation or selectively absorbs some of its components
linear polarizing filter - Tiffen 58mm
Tiffen 58mm Linear Polarizer Glass Filter
Tiffen 58mm Linear Polarizer Glass Filter
Polarizing filters are used to select which light rays enter your camera lens. They can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colors providing better contrast. The effect can be seen through the viewfinder and changed by rotating the filter. Linear polarizers are used with most manual focus cameras and are not recommended for auto-focus cameras.

Produces deeper skies and minimizes reflections in black-and-white and color photography.

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Xpolar sandwich-5323
Xpolar sandwich-5323
Illustration of cross-polar thin section "macro" setup. The two "rings" are linear polarizing camera filters (67mm dia.) from Hoya. A meteorite thin section (petrographic slide) is between them, in the dark area. The dark area is created by rotating one of the polarizers 90 degrees relative to the other (angle is between their respective axes of polarization). The lighter area shows that light passes through either filter, but not through both -- except where the minerals in the thin section alter the index of refraction/polarization. The outer mid-dark area is a "fill" made during editing, to hide the blinding light from the light source beneath the polarizers ... Update: I was explaining this to a friend last weekend and it's clear I wasn't, well, clear. What's going on here is this sandwich of two polarizing filters with a thin section between them is sitting on a light table. So, light is coming up from beneath (at you in this photo), passing through a polarizer, then through a paper-thin section of rock from a meteorite, then through the top polarizer, and into the camera. The polarizers are blocking all the light from around the thin section (the trapezoidal shape with all the colors) except where they don't overlap (the two whitish crescent shapes). The outer gray area was white before I filled it with gray color using LView, a photo editor like Photoshop. I hope that clears things up a bit. Update(2): To give you an idea of scale, the smallest note in the above image shows a compound chondrule that is 3mm long. The link in the note takes you to an animation of this chondrule in cross-polarized light using a petrographic microscope.
Condominiums
Condominiums
The "Prelude" condominiums across from Melissa's balcony. Taken through a polarizing filter and using +1EV compensation. This is the first time I attached her D50 kit lens (18-55mm f/3.5-5.6G) to my D70. In many ways, I like it better than my own kit lens (18-70mm f/3.5-4.5G). It focuses slightly slower, but I find it more accurate. It's also smaller, lighter, and turning the focusing ring from wide to zoom is pretty linear, as opposed to the D70 kit lens which "bunches up" at the wide end.

linear polarizing filter
linear polarizing filter
Tiffen 52mm Linear Polarizer
Polarizer filters give you several key creative features. They evenly increase color saturation of all colors (except black and white), creating deep, rich scenics. They add contrast for dramatic skies and ariel shots. They eliminate the whitish glare from highly reflected surfaces like glass and water. Polarizers are two part lenses that rotate, allowing you to select the degree of additional saturation, contrast and glare reduction desired. Tiffen polarizers are offered in standard and warm versions. Warm polarizers add Tiffen's exclusive 812 warming filter, giving portraits and scenics a warm and muted feel while retaining rich coloration. Polarizes come in two types: Circular -- for all types of cameras: required for beam splitting metering systems commonly found in auto-focus SLR's and in most curretn TTL Slr's. Linear -- for older metering systems. Tiffen polarizers are available in the follow variations: Standard Linear. Standard Circular. Warm Circular -- polarizer plus 812 warming filter. Wide Angle Circular -- a thin filter designed to avoid vignetting at the edges from larger wide angle lenses.

Produces deeper skies and minimizes reflections in black-and-white and color photography.

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