B+W

B+W 66-1001705 77mm Clear MRC Lens Protection Filter

4.6 (391 reviews)

Premium 77mm clear lens protection filter with scratch-resistant MRC coating and brass F-Pro mount.

$63.99*
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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 77mm Clear MRC (007M) is a purpose-built lens protection filter from one of the most established names in photographic filtration. At its core is Water-White Schott Glass — an ultra-clear optical glass manufactured in Germany that introduces no measurable color shift or loss of sharpness. Unlike basic UV filters that may subtly alter color balance, this clear filter is designed to be entirely neutral, serving exclusively as a physical barrier between your front element and the hazards of everyday shooting: dust, moisture, fingerprints, and accidental contact.

The Multi-Resistant Coating (MRC) elevates this filter well above standard protection glass. Applied in multiple layers, MRC is harder than the glass it covers, creating a surface that resists scratching even from rough cleaning materials. It is also hydrophobic and oleophobic, causing water to bead and roll off and preventing oils from bonding to the surface. This makes field maintenance significantly easier — a quick wipe restores clarity without the extended cleaning that uncoated filters often require. The brass F-Pro mount ensures smooth threading, eliminates the jamming issues common with aluminum mounts, and includes a front thread for stacking additional filters when needed. For photographers who keep a protection filter permanently mounted, the B+W Clear MRC is engineered to be forgotten — protecting without compromise.

Key Features

This filter uses our standard B+W F-Pro filter mount, which has a front accessory thread and is made of brass.

MRC by B+W is not only an extraordinarily effective multiple layer coating, it is also harder than glass, so that it protects filters from scratches, and it is also water and dirt repellent, thus facilitating filter maintenance.

Manufactured from Water-White Schott Glass

Specifications

Brand
B+W
Model
66-1001705
Filter Type
Clear (Protection)
Diameter
77mm
Coating
Multi-Resistant Coating (MRC)
Glass
Water-White Schott Glass
Mount
F-Pro Brass
Front Thread
Yes

Pros & Cons

👍 Pros

  • Water-White Schott Glass delivers excellent optical clarity with no color cast
  • MRC coating is harder than glass, providing superior scratch resistance
  • Water and dirt repellent surface makes field cleaning quick and easy
  • Brass F-Pro mount is durable and resistant to cross-threading or binding
  • Front accessory thread allows stacking additional filters

👎 Cons

  • Standard F-Pro mount profile may cause vignetting on some ultra-wide-angle lenses
  • Higher price than basic UV or protection filters from budget brands
  • Clear filter offers no UV absorption, only physical protection
  • Single 77mm size requires step-up rings for smaller lens threads

Frequently Asked Questions

No. The Water-White Schott Glass is optically neutral and the MRC coating maximizes light transmission, so the filter has no visible impact on image quality.
The MRC coating is harder than glass itself, resisting scratches from everyday handling. It also repels water and dirt, making the filter surface much easier to clean in the field.
The F-Pro is B+W's standard brass filter mount. It includes a front accessory thread, so you can stack additional filters or attach lens caps on top of it.
The standard F-Pro mount has a traditional profile. On ultra-wide lenses at 77mm, there is a slight risk of vignetting at the widest focal lengths. B+W's slim or nano mount versions are designed for those situations.
It is purely a protection filter. It adds no polarization, neutral density, UV cut, or color effect — its sole purpose is to shield your front lens element.