Item Includes

• Heliopan #13 Green Filter
• Manufacturer Warranty

Overview

The Heliopan #13 Green Filter is a specialized optical contrast filter dedicated to black-and-white film photography. By manipulating tonal values—darkening reds and blues while lightening greens—it provides enhanced contrast and subject separation for outdoor landscapes and portrait photography.

Features

• Tonal Manipulation: Lightens greens while darkening blue and red tones for distinct monochrome contrast.
• Precision Glass: Built with premium German Schott glass to ensure optimal clarity and structural integrity.
• Premium Brass Frame: Heavy-duty brass ring construction maximizes durability and completely prevents cross-threading.
• Reflection Suppression: Features a single anti-reflection layer on both front and rear surfaces to combat glare.
• Ghosting Control: Specially engineered to significantly reduce lens flare, scattered light, and internal ghosting.
• Protective Coating: Anti-reflective layers double as a barrier to keep the glass substrate cleaner for longer.

Specs

• Filter Type: Contrast Filter (#13 Green)
• Application: Black-and-White Film Photography
• Manufacturer: HELIOPAN
• Filter Factor: 3x (requires a manual exposure increase of 1.5 stops)
• Substrate Material: Schott Optical Glass
• Ring Material: Solid Brass
• Coating Type: Single-layer anti-reflection (both sides)
• Country of Origin: Germany