Overview
The Nanlite FL-20G Fresnel Lens is a professional glass beam-shaping modifier designed for Nanlite Bowens-mount COB LED fixtures, including the Forza 300, 300B, 500, 500B, 720, and 720B series, as well as compatible FS-series lights.
This optical modifier transforms a standard COB light output into a highly controllable, focusable beam, allowing users to adjust the spread from a tight 10° spot to a wide 45° flood. This makes it an essential tool for cinematic lighting control, enabling both punchy directional key light and softer, broader illumination from a single fixture.
The FL-20G features a precision glass Fresnel lens system housed in a durable metal and composite body, engineered to handle the heat output of high-power LED fixtures while maintaining optical clarity and consistent beam shaping on set.
Included metal 8-leaf barndoors provide additional spill control, allowing precise shaping of light edges, flagging, and directional control without requiring additional modifiers.
By increasing beam efficiency and concentrating light output, the FL-20G significantly boosts usable intensity compared to bare COB output, making it ideal for long throw applications, daylight simulation, and high-impact cinematic lighting setups.
This Fresnel is widely used in film production, broadcast environments, and commercial photography where precise light control, beam focusing, and modifier flexibility are required.
Key Features
• Glass Fresnel lens for Bowens-mount COB LED fixtures
• Adjustable beam angle from 10° spot to 45° flood
• Designed for Nanlite Forza 300, 500, 720, and compatible FS series
• Increases light intensity by concentrating beam output
• Includes 8-leaf metal barndoors for spill and edge control
• Precision optical glass for consistent beam shaping
• Heat-resistant design for high-output LED fixtures
• Quick Bowens S-mount attachment system
• Ideal for cinematic key lighting and long-throw setups
• Suitable for film, broadcast, studio, and commercial production
Specifications
• Product Type: Glass Fresnel lens modifier
• Brand: Nanlite
• Model: FL-20G
• Beam Angle Range: 10° – 45°
• Mount Type: Bowens S-type mount
• Lens Material: Optical glass Fresnel
• Construction: Metal + composite housing
• Included Accessories: 8-leaf barndoors + carry case
Compatibility
• Forza 300 / 300B / 300 II / 300B II
• Forza 500 / 500B / 500 II
• Forza 720 / 720B
• FS-series COB fixtures
What’s in the Box
• 1 × Nanlite FL-20G Glass Fresnel Lens
• 1 × 8-Leaf Metal Barndoors Set
• 1 × Protective Carry Case
