{"product_id":"b-w-49mm-master-neutral-density-1-8-6-stop-smooth-long-exposures","title":"B+W 49mm Master Neutral Density 1.8 (6 Stop) - Smooth Long Exposures","description":"\u003cp\u003eOur review finds the B+W 49mm MASTER Neutral Density 806M (6 stop) is a straightforward, high-quality tool for photographers who want longer exposures or shallower depth of field in bright light. The biggest reason to buy is simple: it reliably reduces light by six f-stops without introducing color casts, letting users render flowing water soft or achieve a short depth of field when apertures alone cannot. This review focuses on build, optical quality and practical field use for landscape and portrait shooters who need durable glass ND performance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-Stop Light Reduction:\u003c\/strong\u003e Darkens the scene by six stops so shutter speeds can be slowed significantly to produce motion blur or control exposure in bright conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Quality Glass:\u003c\/strong\u003e The finely polished glass substrate resists the scratches and image degradation common with plastic filters, so image clarity is preserved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMRC Nano Coating:\u003c\/strong\u003e Multi-resistant coating repels dirt and water to keep the surface clean and reduce reflections for easier maintenance in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThin Knurled Mount:\u003c\/strong\u003e Black knurled thin profile filter mount improves grip for mounting and unmounting and helps avoid vignetting on wider lenses down to 17mm full frame equivalent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication QR Code:\u003c\/strong\u003e A new QR code on the product lets users verify authenticity to ensure they have a genuine B+W optical filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEco-Friendly Packaging:\u003c\/strong\u003e Ships in reduced-impact packaging, which is a small but notable benefit for photographers who prefer sustainable options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe 806M is ideal for landscape photographers who want to smooth water and clouds or for portrait and event shooters who need extra control over depth of field in bright sunlight. Because it is a true glass filter with MRC Nano coating, it suits those who value image quality and longevity over disposable plastic alternatives.\u003c\/p\u003e\n\u003cp\u003ePhotographers who rely on very wide-angle lenses should confirm compatibility since the filter is specified as good for use down to 17mm full frame format; studio shooters who never use long exposures or who prefer variable NDs for convenience may want a different tool.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh optical quality from finely polished glass preserves detail and color neutrality during long exposures.\u003c\/li\u003e\n\u003cli\u003eMRC Nano coating makes the surface easier to clean and helps repel water and grime in wet conditions.\u003c\/li\u003e\n\u003cli\u003eThin, knurled mount offers a secure grip and minimizes the risk of vignetting on wider lenses.\u003c\/li\u003e\n\u003cli\u003eIncluded QR code provides a straightforward way to verify authenticity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBeing a fixed 6-stop glass filter, it lacks the flexibility of a variable ND for quickly changing light situations.\u003c\/li\u003e\n\u003cli\u003eRequires a tripod for many of the long-exposure effects it enables, which may not suit fast-paced shooting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eNeutral Density (ND)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDensity\u003c\/td\u003e\n\u003ctd\u003e1.8 (3% transmission, 6 stop)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003e49mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eMRC Nano multi-resistant coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eBlack knurled thin profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage\u003c\/td\u003e\n\u003ctd\u003eGood for lenses down to 17mm full frame format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eECO-friendly packaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe B+W 49mm MASTER ND 806M is a durable, optically clean 6-stop filter that earns its place in the kit of any landscape or outdoor portrait photographer who needs reliable light reduction without color shifts. Its glass construction and MRC Nano coating make it a good value for those who prioritize image quality and longevity over cheaper alternatives, though users should accept the trade-off of fixed density and the need for a tripod in many situations.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this filter change color balance?\u003c\/strong\u003e\u003cbr\u003eThe 806M is designed to darken by six stops without changing color, so it preserves neutral color balance for long exposures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it cause vignetting on wide lenses?\u003c\/strong\u003e\u003cbr\u003eThe thin profile mount is intended to reduce vignetting and is rated good for use down to 17mm full frame, but extreme wide-angle setups should still be checked for fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this filter easy to keep clean in the field?\u003c\/strong\u003e\u003cbr\u003eYes, the MRC Nano multi-resistant coating repels dirt and water, making cleaning easier than uncoated glass.\u003c\/p\u003e","brand":"B+W","offers":[{"title":"Default Title","offer_id":48618560159963,"sku":"B09JB1QC75","price":56.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Y4KQVl-zL._AC_SL1200.jpg?v=1778476202","url":"https:\/\/gearmusthave.com\/products\/b-w-49mm-master-neutral-density-1-8-6-stop-smooth-long-exposures","provider":"GearMustHave","version":"1.0","type":"link"}