Bayonet Female on Arm MB2 - Fantasea - AOI Quick Release

Bayonet Female on Arm MB2 - Fantasea - AOI Quick Release

Fantasea AOI UWL-09 Pro - Super Wide Angle PRO Glass Wet Lens

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Fantasea UWL-400Q - Wide Angle Conversion Wet Lens 0.5x

Fantasea UWL-400Q Wide Angle Conversion Wet Lens will increase the field of view by 100% - best wide lens for Olympus TG6, OM system TG-7 and many others
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UWL-400Q Wide Angle Lens - cat # 5142 - Wide Angle Conversion Wet Lens 0.5x

Get close, and fit everything into the shot 


The Fantasea UWL-400Q Wide Angle Lens (also known as AOI UWL-400A) is a Super Sharp Wide Angle conversion lens that attaches to the housing lens port thread and can be installed and removed during the dive. The lens is compatible with the Fantasea Bayonet System (QRS). Bayonet adaptors can be separately ordered.

The UWL-400Q was designed for cameras featuring a 24mm lens (35mm equiv.) or any higher focal range.
It is perfect for photographing seascapes, divers, ship wrecks and schools of fish without moving further away from the subject, thereby still taking full advantage of water clarity and artificial lighting.

It also allows focusing on short distances, making it perfect for CFWA (Close Focus Wide Angle) photography.

The UWL-400Q is compact and lightweight, allowing for easy storage and transportation and comfortable handling of the lens during the dive.

The UWL-400Q is compatible with most all cameras featuring a 24mm lens (or a higher focal range). It can also be used with some cameras featuring a wider lens by zooming in to avoid a vignette.

The UWL-400Q features a 52mm thread and can be mounted directly on lens ports with a 52mm thread or on lens ports featuring a different thread, by using a compatible adaptor. The EyeDaptor M67-F52 lens adaptor is included in the box and allows mounting the lens on housings featuring a 67mm threaded lens port.
Alternatively, the 52mm threaded adaptor mount screwed into the lens can be replaced with a Bayonet mount (separately purchased) for quick and easy installation and removal of the lens when used with a compatible Bayonet system (QRS).

The  Wide Angle Dome Lens will increase the field of view by 100%

This lens is made by quality lens manufacturer AOI - the 400A version of this lens is the same as the AOI UWL-400 with the only difference that the 52mm thread can be removed and replaced with the quick release system mount from AOI / Fantasea and then mounted on a 52mm port using the AOI Quick Release Mount Base

This lens will not vignette with any of the following housings:

  • Fantasea FG9X II for Canon G9X/G9XII
  • Fantasea FRX100V for Sony RX100 III, IV, V and VA
  • Olympus PT-056 for Olympus TG-3 & TG-4
  • Olympus PT-058 for Olympus TG-5
  • Olympus PT-059 for Olympus TG-6 and OM system TG-7

The lens fits all camera housings with 52mm thread or housings with a 67mm threaded port using a 67-52mm step down ring (which we provide for free if you purchase this lens and let us know that you need it. This the very best lens for the Olympus TG series!

What makes this lens particularly versatile is that it works equally well for video as it does for still images, adding more to your shots while staying easily within the distance limits of flash or video lights.

The dome-shaped lens design offers the maximum field of view underwater. The lens is waterproof to 200 feet (60m) and includes neoprene lens covers for mounting and objective sides.


  • 52mm thread mount (removable and can be replaced with a Bayonet mount, separately purchased)
  • Bezel / Barrel material: Aluminum alloy with black hard anodize, ABS 
  • Lens construction: 5 groups and 5 elements 
  • Lens coating: Hard coating on the Polycarbonate dome lens + Multi layer AR coating on all glass lenses 
  • Depth rated to 100 meters / 330 feet 
  • Magnification: 0.50X 
  • FOV (Field of View): 120 degrees (when used with a 25mm lens) 
  • Focus distance: 0mm from the dome 
  • Weight (on land): 606 g / 21.4 oz 
  • Weight (underwater): 224 g / 7.9 oz 
  • Dimensions (diameter x height): 121.8 x 76 mm / 4.8 x 3.0 inch
  • Included in package: Neoprene dome cover, rear lens cap, EyeDaptor M67-F52 lens adaptor, secure string, microfiber cloth, O-ring remover and lens padded carrying case



FANTASEAS UWL-400Q Wide Angle Dome Lens Specifications

Optical construction 5 elements / 5 groups
Optical coatings

Air-to-glass surfaces fully multi-coated with anti-reflective deposition coating

Magnification ratio 0.5x
Attachment method 52mm threads attaches to UW housings with 52mm thread mount - or changeable for quick release adapter 

Focus ranges Maintains camera's focusing range
Lens weight (lens only) 590 grams / 20.8 ounces
Lens dimensions 4.6” diameter x 3.1” length
(117mm diameter x 80mm length)
Depth Individually depth tested to 200’ (60 m)
Buoyancy Negative
Warranty 1 year limited warranty
Packaging dimension 6.9” x 6.3” x 4.9”
175mm x 160mm x 125mm
Packaging weight

700 grams / 1.5 lbs