AOI UWL-400A Wide Angle Conversion Wet Lens

Capture More with Stunning Wide-Angle Underwater Shots

The AOI UWL-400A Wide Angle Lens expands your field of view by 100%, allowing you to get closer to your subject while still capturing the full scene. Designed by leading optical manufacturer AOI, this high-quality lens delivers crystal-clear underwater images with exceptional detail.

Versatile & High-Performance Design

The AOI UWL-400A is identical to the AOI UWL-400, with the key difference being its removable 52 mm thread. This feature allows users to swap it for the AOI / Fantasea Quick Release Mount system, offering easy attachment to a 52 mm port using the AOI Quick Release Mount Base.

The dome-shaped lens enhances underwater imaging, delivering an incredible perspective of marine life and landscapes. With fully multi-coated precision optics, it maximises light transmission for vibrant, high-contrast photos and videos.

Key Features

• Ultra-Wide Field of View – Expands your shot by 100% with a 120° diagonal view underwater.
• High-Quality Optics – Multi-layer anti-reflective coatings ensure maximum light transmission.
• Versatile Mounting Options – Compatible with 52 mm thread housings and 67 mm ports using a step-down ring.
• Ideal for Photos & Video – Works seamlessly with both still and video cameras.
• Durable & Waterproof – Rated to a depth of 100 m for deep-sea adventures.
• Protective Accessories – Includes a hard dome lens cover, rear cap, and carrying case.

Specifications

• Description: 0.50X Underwater Wide Angle Conversion Wet Lens
• Lens Construction: 5 elements in 5 groups
• Lens Coating: Multi-layer AR coating, front polycarbonate dome with hard coating
• Field of View (Diagonal): 120° underwater (with 25 mm lens)
• Magnification: 0.50X (on land and underwater)
• Minimum Focus Distance: 0 mm to the front dome lens
• Mount System: M52 thread
• Depth Rating: 100 m
• Bezel / Body Material: ABS / hard anodised aluminium alloy
• Weight: 618 g (on land), 224 g (underwater)
• Dimensions: 12.2 cm (D) x 7.6 cm (H)
• Standard Accessories: Hard dome lens cover, rear cap, lens secure line, carry case

Why Choose the AOI UWL-400A?

This wide-angle wet lens is perfect for underwater photographers who want to capture expansive seascapes, reef life, and dynamic action shots. Whether you're using strobes or video lights, the lens ensures sharp, vibrant images while keeping you within optimal lighting distances.