K&F 72mm ND2-ND400 Variable ND Filter (Nano-X Series)In India’s bright daylight — whether shooting in Goa’s midday sun, trekking in the Himalayas, or capturing monsoon waterfalls — controlling exposure is a constant challenge. The K&F 72mm ND2-ND400 Variable ND Filter gives you the flexibility to dial in just the right amount of light reduction without swapping out multiple fixed ND filters. It works as an adjustable “shade” for your lens, helping you maintain optimal shutter speeds and apertures even under harsh lighting.Beyond just exposure control, this filter enables creative effects you’d otherwise struggle to achieve. Want silky water movement even in full sun? Or cinematic motion blur in video while retaining your f-stop? This filter helps. Built with precision-coated optical glass and a slim, durable frame, it’s designed for serious photographers and videographers who demand both quality and convenience.Key FeaturesWide light control range from ND2 to ND400 (approx. 1–9 stops)High-quality Japanese optical glass for sharp, clear imagesMulti-layer nano coatings to reduce reflections, water, oil, and scratchesUltra-slim frame to minimise vignetting on wide-angle lenses360° smooth rotation with calibrated markings for precise adjustmentDurable metal build designed for outdoor and travel useIncludes front & rear caps and a protective carrying pouchSEO-Friendly FAQsQ: What is a variable ND filter and how is ND2-ND400 useful?A: A variable ND filter lets you adjust how much light enters your lens without changing filters. ND2 (≈1 stop) to ND400 (≈9 stops) gives you broad control from mild shading to heavy light blocking, useful for daytime long exposures, shallow depth-of-field, and cinematic effects.Q: Will this filter cause vignetting on wide-angle lenses?A: Because of its ultra-slim frame design, it minimizes vignetting even with wide-angle lenses. However, extremely wide setups (e.g. 16mm full-frame) may show slight dark corners under certain conditions — test before critical shoots.Q: Does it introduce “X patterns” or colour cast?A: At extreme settings (especially near ND400), cross-polarization “X” artifacts and slight colour cast can appear — this is common in many variable ND filters. But with moderate use and quality coatings, these effects are reduced in this model.Q: Can I use the original lens hood with this filter attached?A: Sometimes, yes. Because the front thread is 72 mm, if your original hood is a bit larger, it may overlap. But in some cases, you might need a slightly larger hood to avoid vignetting or interference.Q: How do I choose this over fixed (solid) ND filters?A: Variable ND filters offer flexibility without swapping filters, which is great for changing lighting. That said, fixed NDs may yield higher optical purity for critical work. Choose based on your workflow and quality demands.Q: Is this suitable for both photography and video?A: Yes — its variable stops help you maintain consistent shutter speeds in video and creative exposures in stills. Just be cautious of extreme stops and test for artifacts.
