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Description
Sigma 72mm WR Circular Polarizer FilterHelps to Eliminate Reflections and Glare Increases Contrast Reduces Haze in Landscapes Greater Color and Tonal Saturation Water, Oil, and Static Repellant The Sigma 72mm WR Circular Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the
- Helps to Eliminate Reflections and Glare
- Increases Contrast
- Reduces Haze in Landscapes
- Greater Color and Tonal Saturation
- Water, Oil, and Static Repellant
The Sigma 72mm WR Circular Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges, and filters this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage. A general increase in contrast becomes visible as well.
A circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter. The addition of this quarter wave plane is to circularly polarize the linearly polarized light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polarizer, auto focus and exposure metering accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions.
This Sigma WR Circular Polarizer Filter is coated to repel water drops and resist smudging from fingerprints. It is also treated to exhibit antistatic properties to prevent microscopic dust from clinging to the front surface. This helps to ensure sharp images.
- Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
- Polarizing filters arrange, and filter directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of the light
- Clears up haze in distant landscapes and provides more saturated, vivid colors
- Strongest effect when used at a 90° angle from the sun
- Circular polarizers are ideal for use with digital cameras and autofocus lenses where a linear polarizer will often disrupt auto exposure and focus features
- Constructed from water, oil, and static resistant glass
| Filter Type | Circular Polarizer |
| Filter Factor | 2 - 8 (1 - 3 Stop) |
| Shape | Circle |
| Circular Size | 72 mm |
| Front Thread / Bayonet | 72 mm |
| Packaging Info | |
|---|---|
| Package Weight | 0.25 lb |
| Box Dimensions (LxWxH) | 4.803 x 4.095 x 0.709" |
- Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects
- Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy