B+W 49mm Master Clear MRC Nano 007M Glass Filter - Lens Protection

In this review the B+W 49mm Master Clear MRC Nano 007M is evaluated as a simple, reliable protective filter for photographers who want lens protection without altering images. The bottom line: it is best for enthusiasts and professionals who want a permanently usable, color-neutral front element that resists water and dust. The review focuses on build, optical neutrality, and the practical MRC Nano coating so readers can decide whether a high-quality clear protector belongs on their lenses full time.

Key Features

• Black knurled thin mount: The knurled, thin-profile filter mount gives better grip for attaching and removing the filter while minimizing vignetting on wider lenses.
• MRC Nano coating: The multi-resistant coating repels water and dust so droplets and grime are easier to clear without smearing the glass.
• Color-neutral optical glass: The filter produces no filter effect or light loss so images remain true to the lens color balance and exposure.
• Compatibility to 17mm full frame: The thin profile is suitable for use on lenses down to 17mm full frame format without significant corner shading.
• New QR authenticity check: The included QR code lets buyers verify the filter is a genuine item from the manufacturer.
• ECO-friendly packaging: The filter ships in reduced-waste packaging that reflects a smaller environmental footprint.

Who It's For

Photographers who regularly work outdoors or in variable weather will appreciate this filter as practical lens insurance; the MRC Nano coating makes it easier to keep the front element clean between shoots. It is also a good choice for studio shooters who want an unobtrusive protective layer that does not affect color or exposure.

Those shooting with very wide or specialty optics beyond 17mm full frame should verify clearance, and photographers seeking creative filtration (polarizers, ND, or color correction) should look elsewhere because this product is intended solely as a clear protector with extremely low reflection.

Pros & Cons

Pros

• Excellent optical neutrality with no apparent color shift or light loss when mounted.
• Durable, thin knurled mount that offers improved grip and reduces the chance of vignetting on wide lenses.
• The MRC Nano coating resists water and dust, making maintenance quicker in the field.
• Includes an authenticity QR code and arrives in eco-friendly packaging.

Cons

• As a clear protector it does not provide creative control like polarizers or ND filters.
• Photographers using ultra-wide lenses should confirm specific clearance despite the thin profile.

Specifications

Product	B+W 49mm MASTER 007M Clear Knurled Filter
Mount style	Black knurled thin profile
Coating	MRC Nano coating to repel water and dust
Optical effect	No filter effect; color-neutral, highly transparent
Wide-angle suitability	Good for down to 17mm full frame format
Authentication	New QR code included to verify authenticity
Packaging	ECO-friendly packaging

Our Verdict

The B+W 49mm Master Clear MRC Nano 007M is an excellent value for photographers who want unobtrusive, long-term lens protection with minimal optical compromise. Its combination of a thin knurled mount and the hydrophobic MRC Nano coating makes it a sensible, durable choice for both outdoor and studio use, provided you do not need any creative filter effects.

Frequently Asked Questions

Will this filter change my images?
It is color-neutral and highly transparent, so it produces no visible filter effect or light loss when used properly.

Is it safe to leave on the lens permanently?
Yes; the filter is designed to remain mounted permanently as it is neutral and has low reflection.

How does the MRC Nano coating help in the field?
The MRC Nano coating repels water and dust, making it easier to remove droplets and grime without smearing the glass.