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Sigma 49mm DG Multi-Layer Coated Circular Polarizer Filter

B&H # SIPF49 Mfr # AFM950
Usually ships in 7-10 business days

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This is a Special order item. Est. arrival at B&H is 7-10 business days (subject to availability). Your order will be charged at time of shipment.
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You Pay: $61.25
Product Highlights
  • Helps to Eliminate Reflections and Glare
  • Reduces Haze and Blue Cast in Landscapes
  • Greater Color and Tonal Saturation
  • Super Multi-Layer Coating

The Sigma 49mm DG Multi-Layer Coated 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. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions.

A circular polarizer 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 accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions.

This filter features Sigma's super multi-layer coating to reduce flare and ghosting while helping to increase overall clarity and contrast.

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° 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.
Super multi-layer coating helps improve image clarity by reducing flare and ghosting.
Type Circular polarizer
Size 49 mm
Filter Factor About 2.5 (1.3 stops)
Multi-Coated Yes; super multi-layer
Rotating Yes
Effect Eliminates reflections and haze and improves color and tonal saturation
Construction Not specified by manufacturer
Front Filter Thread Size 49 mm
Front Lens Cap Size 49 mm
Sigma 49mm DG Multi-Layer Coated Circular Polarizer Filter
  • 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.
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