Lee Filters 100TA Wide Angle Adapter Ring for 100mm System - 77mm Lens Thread

On a coastal cliff at dawn, you swap to your 16-35mm ultra-wide zoom, screw the Lee Filters 100TA into the 77mm thread, and clip on your 100mm filter holder. The slim ring keeps everything close to the front element, so your graduated ND and polarizer capture the scene without dark corners.

Key specifications

• Adapter ring for Lee Filters 100mm system
• Lens thread diameter: 77mm
• Wide-angle design minimizes vignetting on lenses as wide as 16mm (full-frame)
• Material: anodised aluminium, matte black finish
• Mounting: screw-in to lens, bayonet/clip-on to filter holder
• Outer diameter: approx. 85mm; thickness: approx. 10mm
• Compatible with Lee 100mm Foundation Kit and Professional Kit

Why choose it

The 100TA is engineered for wide-angle shooters who demand edge-to-edge sharpness. Its low-profile construction keeps the filter holder as close to the front element as possible, reducing the chance of vignetting even at 16mm. The anodised aluminium body is lightweight yet durable, and the matte black finish prevents internal reflections. Installation is tool-free and secure, thanks to the precise 77mm thread and positive clip mechanism.

Ideal use cases

• Landscape photography with ultra-wide zoom or prime lenses
• Architectural photography requiring perspective control with filters
• Seascape long exposures using ND grads and polarizers
• Travel photographers who need a compact, reliable filter system

Good to know

The 100TA is part of the modular Lee 100mm filter system, allowing you to build a complete setup for a wide range of lenses. It is designed to work seamlessly with Lee filter holders and filters, ensuring a secure and precise fit. The wide-angle design is particularly beneficial for full-frame cameras, but it also works well with APS-C sensors when using equivalent focal lengths.