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Two 37mm camera filters, UV and CPL, ultra-slim magnalium rims, double-threaded, Japanese AGC glass

Urth

Urth 37mm Duet Filter Kit UV CPL #UFKM2PST37

SKU CH-56A4-JTZMR

A 37 mm kit combining a UV filter that blocks 99.6 % of ultraviolet light and a CPL filter that removes 99.9 % of reflected glare, both on Japanese AGC glass with ultra-slim magnalium frames

  • Size37mm
  • UV filter blocks 99.6% UV light for clearer, sharper images
  • CPL filter removes 99.9% reflected light boosting colour and contrast
  • Japanese AGC optical glass delivers professional-grade optical clarity
  • Ultra-slim magnalium rim prevents vignetting on wide-angle lenses
  • Double-threaded design allows stacking filters or adding lens caps

37mm Duet Filter Kit with UV and CPL

This 37mm Duet Filter Kit pairs a UV filter and a circular polarising filter for photographers who want lens protection and creative control in one set. Both filters use Japanese AGC optical glass housed in ultra-slim magnalium rims that are double-threaded for stacking. The kit suits shooters who need to guard front elements while also managing glare and colour saturation.

UV protection and polarisation in one kit

The UV filter cuts 99.6% of ultraviolet light to reduce haze and blue cast while shielding the lens from scratches, dirt and water. The CPL filter removes 99.9% of reflected light from water, glass and non-metallic surfaces, boosting contrast and colour depth. Each filter features an 8-layer nano-coating and smooth rotation for precise polarisation adjustment.

For 37mm thread lenses needing protection

This kit fits lenses with a 37mm filter thread and is built for photographers who want a permanent protective layer plus the option to cut reflections on demand. It is not for shooters using larger thread sizes, those who only need a single filter type, or anyone requiring special-effect filters such as neutral density or infrared.

Highlights

  • UV filter blocks 99.6% UV light for clearer, sharper images
  • CPL filter removes 99.9% reflected light boosting colour and contrast
  • Japanese AGC optical glass delivers professional-grade optical clarity
  • Ultra-slim magnalium rim prevents vignetting on wide-angle lenses
  • Double-threaded design allows stacking filters or adding lens caps

Specifications

Size37mm

Questions about this item

Will the 37mm thread size fit my lens directly?

Yes, both the UV and CPL filters use a 37mm thread, so they screw straight onto any lens with a matching 37mm front thread.

How do I stack the UV and CPL filters without vignetting?

Each filter has a double-threaded ultra-slim magnalium rim; screw the UV filter onto the lens first, then thread the CPL onto the UV filter's front thread.

How often should I clean the nano-coating on these filters?

Clean only when visible marks appear; the 8-layer nano-coating on the UV filter and the CPL's glass repel water and dirt, so a quick blow-off or microfibre wipe is usually enough.

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