B+W

B+W 1100743 49mm Basic Circular Polarizer MRC Filter

4.5 (2 reviews)

Cut reflections off water and glass with confidence — the B+W 49mm Basic MRC CPL delivers clean polarization with flare-resistant multi-coating at a proven price point.

$50.30*$52.69Save 4%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The B+W 49mm Basic Circular Polarizer with MRC coating is a filter built around a straightforward proposition: reliable polarization with competent anti-reflection coating at an accessible price point. Mounted on a 49mm-threaded lens — common on Sony, Canon, and Nikon primes in the 35mm to 85mm range — it lets you rotate through the full polarization range to progressively eliminate surface reflections from water, glass, foliage, and glossy paint. At peak rotation, skies gain contrast and saturation, specular highlights on water collapse into the scene, and the overall image reads as more three-dimensional than it does without the filter. The MRC coating adds practical field value: it reduces flare-inducing reflections from the filter glass itself, so you're not trading sky glare for filter-induced ghosting.

This filter is aimed at photographers who want dependable CPL performance without the premium pricing of B+W's XS-Pro or T-Pro lines. The black knurled ring is grippy and rotates smoothly, which matters when you're adjusting polarization angle quickly between frames. It's a sensible choice for landscape, travel, and outdoor portrait work where the 24mm full-frame minimum focal length covers most shooting scenarios. Build quality reflects the B+W standard — the glass is centered and flat, the ring threads cleanly, and the MRC coating sheds dust and moisture without abrading in normal use. For photographers shooting standard focal lengths who want a reliable CPL without paying flagship prices, this filter delivers exactly what it advertises.

Key Features

Black Knurled Filter Mount for Better Grip

MRC Coating to Control Flare & Ghosting

New QR Code included to Verify Authenticity

Good for down to 24mm Full Frame Format

ECO-Friendly Packaging

Specifications

Brand
B+W
Model
1100743
Filter Size
49mm
Filter Type
Circular Polarizer (CPL)
Coating
MRC (Multi-Resistant Coating)
Mount
Black Knurled Filter Ring
Minimum Full Frame Focal Length
24mm
Authenticity
QR Code Verification Included
Packaging
ECO-Friendly

Pros & Cons

👍 Pros

  • MRC multi-coating effectively suppresses flare and ghosting on the filter's own glass surfaces, keeping backlit and sun-on-water scenes clean.
  • Black knurled filter mount provides a secure, non-slip grip for rotating to the precise polarization angle — particularly useful with gloves or in cold conditions.
  • Compatible with full-frame lenses 24mm and longer without vignetting, covering the majority of standard shooting focal lengths.
  • CPL design maintains full compatibility with phase-detection and contrast-detect autofocus systems — no AF workarounds required.
  • QR-based authenticity verification provides confidence you're receiving genuine B+W optical glass.

👎 Cons

  • Like all CPLs, this filter causes a 1.5–2 stop light reduction, which forces slower shutter speeds or wider apertures in already low-light conditions — problematic for handheld shooting at dusk.
  • The "Basic" designation in the product line means the filter ring is not ultra-slim; stacking a second filter or lens cap on top may be difficult, and vignetting risk on wide primes is higher than with a slim-profile ring.
  • Polarization effect is most visible between approximately 30° and 60° from the light source — pointing directly at or away from the sun produces minimal effect, which requires deliberate shooting angle management.
  • No protective case or pouch is included in the eco-friendly packaging, leaving the filter unprotected during transport without a separate solution.

Frequently Asked Questions

No — a circular polarizer (CPL) is specifically designed to maintain autofocus and metering compatibility, unlike linear polarizers. The circular polarization structure ensures the camera's phase-detection and contrast-detect AF systems read the light correctly. Mount it, rotate to your polarization angle, and shoot — AF operates normally throughout.
MRC (Multi-Resistant Coating) applies multiple anti-reflection layers to the glass surfaces, which reduces lens flare and ghosting that appear when shooting into bright light sources — backlit scenes, sun-on-water, or direct window light. On a non-coated CPL, stray reflections from the filter glass itself can show up as artifacts in the frame. The MRC coating on this B+W filter substantially suppresses that effect.
Below 24mm on full frame (or equivalent on crop sensors), vignetting becomes a real risk. The filter ring's physical edge starts to intrude into the image circle at ultra-wide angles, darkening the corners. On a 24mm or longer lens, you're safe; on a 16mm or 20mm, you'll likely see corner vignetting that requires cropping.
A CPL typically causes a 1.5 to 2 stop light reduction depending on the rotation angle. At maximum polarization, expect closer to 2 stops of exposure loss — your camera's metering will compensate automatically in auto modes, but in manual mode you'll need to open up or slow the shutter accordingly. This is a universal CPL characteristic, not specific to this filter's glass quality.
B+W includes a QR code on the packaging that links to an authenticity verification page. Scan it before first use to confirm you've received a genuine B+W-manufactured filter rather than a counterfeit.