Variable ND8-128 (3-7 Stop) Filter Plus+ - Open Box, 52mm

Urth Variable ND8-128 Filter Plus+ — One Filter Instead of a Whole ND Kit in Your Travel Bag

The gist: A single variable ND filter covering a 3-7 stop range, letting you dial in long exposures of waterfalls, oceans, or moving clouds without packing four or five fixed-strength filters for a trip.

• Real glass, real coating: German Schott B270 glass with a 20-layer nano coating, built for light control and color accuracy rather than the muddy cast cheaper variable NDs are known for.
• Solves the classic variable-ND flaw: An independent review from Widescenes confirmed "the dreaded 'X' effect issue does not affect images when you use this filter," a problem that plagues cheaper variable ND filters at extreme rotation.
• Weather-sealed, travel-durable: Built to hold up to outdoor shooting conditions, backed by a lifetime warranty.
• Honest tradeoff: The same Widescenes review noted a slight loss in sharpness and a mild warm color cast — normal for variable NDs, and something to budget post-processing time for.

Widescenes called it "HIGHLY RECOMMENDED," saying it earned "a permanent home in our camera bags" for the exposure control it offers without the optical compromises seen in cheaper models.

Best for: travelers who want long-exposure water, sky, or motion-blur shots without carrying a full set of fixed ND filters. Skip it if: you need pixel-perfect sharpness for print-quality landscape work — a fixed ND will edge it out optically. Runs about $89 (price varies by thread size) — check the current price before buying.