NiSi Filters Australia

NiSi 49mm Highlight Diffusion (HDF) Pro Nano Filter

Film-Inspired Highlight Diffusion – Diffuse highlights with a mellow, film-like glow, giving photos and videos a warm, vintage-style look. Contrast-Preserving Clarity – Maintains contrast without compromising tonal balance, preserving image integrity. Multi-Layer Nano Coating – Dual-sided nano anti-glare coating, waterproof and oil-resistant coating. Durable Brass Construction – Precision-engineered brass frame for long-lasting durability and reliable use in various environments. 49mm Thread Compatibility – Fits 49mm threaded filter mount.

NiSi 49mm Highlight Diffusion (HDF) Pro Nano Filter - Main image
$72.44 $104.99 In stock

Category: For Ricoh GR IV

Cinema-grade manufacturing process uses advanced micro-lens technology to diffuse bright areas, adding a smooth finish to highlights and recreating the timeless look of classic film. Perfect for creating dreamlike visuals with a cinematic touch.

Film-Inspired Highlight Diffusion

The micro-lens technology evenly diffuse highlights across bright areas (such as skin highlights, light sources, or reflective surfaces), creating a mellow, film-like glow. This creates the same natural halation effect seen in traditional film, adding depth and emotion to every scene without overexposing details.

Contrast-Preserving Clarity

Unlike standard Black Mist filters that flatten contrast, the HDF’s advanced design maintains the original tonal balance. Shadows remain rich, and mid-tones stay vibrant, ensuring images retain their dynamic range even in challenging lighting conditions.

Multi-Layer Nano Coating

Both sides feature a multi-layer nano coating that combines anti-glare properties and waterproof & oil-resistant protection, reducing lens flare and ensuring protection and easy maintenance in harsh environments.

Durable Brass Construction

Crafted from high-quality brass, the filter frame is resistant to corrosion and wear over time. The precise machining ensures a secure, seamless fit with lens threads. Its low thermal expansion maintains stability even in extreme temperature changes.

49mm Thread Compatibility

Engineered with a standard 49mm threaded mount, this filter fits seamlessly onto standard 49mm threaded lenses.

Ideal for photographers and filmmakers who want timeless beauty in every shot.

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Customer Reviews (4.6 / 5 · 5 reviews)

Riley N. ★★★★★

I’ve been using this filter for street portraits, and the way it softens harsh window light into a dreamy glow is exactly the look I wanted. The micro-lens technology really does add that classic film feel without washing out the whole image.

Daniel H. ★★★★★

After a week of shooting with this on my GR IV, I'm genuinely impressed by how it tames harsh sunlight without washing out the whole frame. The highlights have that soft, creamy roll-off I’ve only seen in old film scans, and it’s thin enough to keep my lens cap fitting normally.

Miles V. ★★★★★

I’ve been shooting straight into bright windows and neon signs around town, and the way the HDF glass softens those hot spots into a silky glow is exactly the cinematic look I wanted. Screws onto my 49mm lens cleanly and hasn’t added any weird color cast, so it feels like a true film emulation rathe