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A thin 52mm circular glass filter with a magnetic base and a knurled aluminium outer ring

SmallRig

SmallRig 52mm MagEase Magnetic Variable ND 1-5 Stop Filter camera accessory

SKU CH-XR03-1DS9Z

Magnetic variable ND filter provides 1-5 stop light reduction for 52mm smartphone lenses with Schott B270i glass

  • Premium German Schott B270i glass ensures exceptional clarity
  • Magnetic attachment enables quick 1-5 stop ND adjustment
  • Dual CPL system provides precise light reduction control
  • Large diameter design prevents vignetting on wide-angle lenses
  • Waterproof and scratch-resistant AR coatings protect filter surface

Mobile exposure control

The SmallRig 52mm MagEase Magnetic Variable ND 1-5 Stop Filter gives smartphone photographers precise control over shutter speed and aperture in bright conditions. It uses German Schott B270i HD glass with multi-layer coatings that resist water, stains, mould and scratches while keeping colour shift to a minimum.

Fixed ND upgrade

This filter replaces single-density neutral density gels or screw-on filters that force you to carry multiple strengths. The 1-5 stop variable range lets you dial the exact density you need for motion blur or shallow depth of field without swapping glass, so the jump is worth it whenever lighting changes faster than you can change filters.

Magnetic mount workflow

A magnetic adapter ring secures the inner polariser to the phone, while an aluminium alloy ring rotates the outer polariser to vary density. The large diameter prevents vignetting on wide-angle lenses. Ensure the adapter ring matches your phone case threads and clean the glass before mounting to avoid trapped dust.

How it compares

Measured against everything we stock in Camera Extras & Accessory Packs, at today’s prices. Recalculated every night.

Price $34.99
Cheaper than about 55% of the 2,266 comparable items (median $39.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does this 52mm MagEase filter need a separate magnetic adapter ring to fit my phone lens?

Yes, it attaches magnetically to any 52mm magnetic filter adapter ring, which must be mounted on the phone lens first.

How do I install the dual CPL system correctly without misaligning the polarizers?

Mount the inner polarizer onto the adapter ring and secure it with the bottom locating ring, then place the outer polarizer and rotate the aluminum alloy ring to vary density.

Will the German Schott B270i HD glass coatings need special cleaning or periodic replacement?

The waterproof, stain-resistant, mildewproof and scratch-resistant AR coatings are permanent; clean only with a microfibre cloth and lens fluid when dirty.

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