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wet wide angle lens for sony a6500 in seafrogs housing ?

Started Jun 8, 2019 | Questions thread
Barmaglot_07 Contributing Member • Posts: 633
Re: wet wide angle lens for sony a6500 in seafrogs housing ?

These aren't lenses - they are wet dome attachments. They have an acrylic hemisphere in front an a flat glass plate in the back, with air trapped inside. The space between the port glass and the dome rear gets flooded with water. There are no actual lens elements inside, but the acrylic hemisphere serves to restore in-air field of view of the lens and remove pincushion distortion produced by a flat port, similar to how a dry dome would work. With a 16-50mm lens on APS-C, you'll get about 84 degrees diagonal FoV, compared to 100 degrees with Inon UWL-H100, 130 degrees with Nauticam WWL-1, and 144 degrees with UWL-H100 plus dome unit.

 Barmaglot_07's gear list:Barmaglot_07's gear list
Sony a6300 Canon EF-S 60mm f/2.8 Macro USM Sony E 30mm F3.5 Macro Sony E 18-200mm F3.5-6.3 OSS LE Sony E 10-18mm F4 OSS +5 more
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