Inon has confirmed that their GoPro HERO 9 and 10 accessories are compatible and suitable for use with the new HERO11 as well.
The accessories include a variety of adapters, trays, arms, and a tripod that are ready to use with their SD Front Mask for HERO9/M67 Filter Adapter for HERO9.
Left: SD Front Mask for HERO9 on HERO11, Center: UFL-G140 SD semi-fisheye lens on HERO11, Right: UCL-G165 SD wide close-up lens on HERO11
For more details, please see this page for details of INON accessories for GoPro cameras.
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