
Neewer NW Series S 40.5mm CPL Polarizing Filter
Cut glare, punch up contrast, and pull saturated skies from flat midday light with this slim 40.5mm CPL.
*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.
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Overview
Key Features
【Natural Color Enhancement】 NEEWER CPL Filter significantly improves contrast and saturation, delivering amazing photos with rich colors and fine details
【HD Visual Experiences & Low Light Reflectance】 Featuring the premium HD optical glass with multiple layers of polarizing films, this CPL filter minimizes the light reflectance to less than 0.1%, reducing flare and ghosting for a high definition visual experience
【Multi Resistant Nano Coatings】 The multi layer Nano coatings on both sides of the filter effectively protect against water, dust, oil, fingerprint, and scratches, easy to clean with just one wipe
【Ultra Slim Frame & Smooth Rotation】The ultra slim yet sturdy aluminium alloy frame with the advanced CNC precision treatment enables effortless installation, and straight knurls ensure smooth rotation for achieving the best effects
【What You Get】Includes 1 x 40.5mm CPL Filter, 1 x Cleaning Cloth, 1 x Filter Case. Note that this 37mm camera filter is compatible with 37mm lenses. The thread size is marked on the front or side of your lens, next to a "ø"(diameter) symbol. Please verify the thread sizes before purchasing the filter
Specifications
Pros & Cons
👍 Pros
- Nano coating sheds water and oil quickly — you can wipe and shoot without smearing during outdoor sessions.
- The slim frame drops onto small mirrorless lenses cleanly without the added bulk that causes vignetting on wider focal lengths.
- Below 0.1% light reflectance means flare and ghosting are genuinely suppressed, not just marketed away — glass surfaces stay clean in backlit scenes.
- Smooth knurled rotation lets you dial polarization precisely without accidentally nudging your focus ring on manual lenses.
- The included hard case keeps the filter protected in a bag pocket without scratching other glass.
👎 Cons
- 40.5mm is a less common filter thread size — stacking or sharing with larger lenses requires step-up rings not included in the kit.
- At 2 stops of light loss, shooting polarized in shade or overcast conditions will push ISO higher than you'd want on a small-sensor camera.
- The slim frame, while vignette-friendly, offers less grip surface than a standard-depth filter ring — trickier to unthread with cold hands.
- No front threads for stacking additional filters — this is a single-filter solution only.