District Camera

Promaster 6774 37mm HGX Prime Circular Polarizer Filter

Promaster 6774 37mm HGX Prime Circular Polarizer Filter - Main image
$66.56 $89.95 In stock

Category: Lens Filters

This Circular Polarizing Filter lets 30% more light reach your camera than everyday polarizers while reducing reflections and enhancing color saturation.

Crafted for fine lenses, HGX Prime filters are individually ground, polished, and coated. They repel dirt and transmit brilliant light to achieve the clearest possible image.

Protective: Repellemax II Anti-static barrier resists dust, dirt, oil, water and fingerprints

Best Image: Cutting-edge multi-coatings and black rimmed glass pass the clearest light to your sensor

Strong and Durable: Ultra hardened glass with scratch resistant coating

Bright: Extremely high visible light transmission to your camera


  • Thread size: 37 mm
  • Outer diameter: 39.7 mm
  • Frame thickness: 7.4 mm
  • Lens thickness: 2.0 mm
  • Coatings: 18 layers
  • Light transmission rate: maximum 88.9% / average 44.4% (average at 400 - 700 nm)
  • Reflection: less than 0.6% (average at 420 - 680 nm)
  • Made in Japan
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Isabella X. ★★★★★

Handled a bright afternoon beach shoot with zero vignetting or loss of sharpness, and the color boost on the blue sky was immediate and impressive. The slim metal ring didn’t interfere with my lens hood at all.

Sebastian K. ★★★★★

Was skeptical about the 30% more light claim, but after shooting a lake at dusk I can actually handhold shots I'd normally need a tripod for. Colors pop without looking fake—the blue sky is deeper and clouds have real texture now.

Miles ★★★★★

Took this on a cloudy morning walk, and the color saturation really made the leaves pop without needing extra editing. The slim build doesn't block my wide lens corners either.