KF Concept 82mm Nano-B Center Field Split Diopter Filter +0.5

On a film set, a cinematographer needs to keep a foreground subject and a distant background in sharp focus simultaneously. The KF Concept 82mm Center Field Split Diopter Filter makes this possible by placing a +0.5 diopter lens over half the frame, while the other half remains clear. This rotatable, ultra-slim filter lets you position the split along any axis, giving you precise control over the focal plane. Ideal for creative photography and videography, it opens up new possibilities for storytelling and visual effects.

Key specifications

• Filter type: Center split diopter (half +0.5 diopter, half clear)
• Filter diameter: 82mm
• Optical material: High-definition optical glass
• Frame material: Aviation-grade aluminum alloy
• Coating: Multi-layer Nano-B coating (water-repellent, oil-repellent, scratch-resistant, anti-reflection)
• Frame design: Ultra-slim, rotatable, with knurled edge for easy grip
• Compatibility: Lenses with 82mm filter thread
• Included accessories: Protective storage case

Why choose it

The Nano-B coating ensures durability and easy cleaning, while the high-quality optical glass maintains image clarity. The rotatable design allows you to align the split diopter exactly where you need it, whether for a dramatic close-up or a deep-focus landscape. The slim frame minimizes vignetting, even on wide-angle lenses.

Ideal use cases

• Creative portrait photography with blurred backgrounds
• Product shots where both foreground and background must be sharp
• Filmmaking and videography for special effects and deep focus
• Macro photography with extended depth of field

Good to know

The split diopter effect is most pronounced at wider apertures. For best results, use a lens with manual focus and stop down slightly to balance the two focal planes. The filter comes with a protective case for safe storage and transport.