You may use the ‘Firefly S8E’ with a 90 degree lens, (without any modification / changing the lens), directly with this kit – Secure the camera to ‘GoPro’ housing with the supplied nylon screws. The only downside you don’t have fully access to power bottom (one third its accessible) you may need to press that []
Eagle Vision 25% X 75% GoPro 5,6,7 Black
Eagle Vision Universal Side Mount Scope Cam Kit — North East Airguns
GoPro Floaty Backdoor (HERO8 Black Protective Housing/HERO7 Black/HERO7 Silver/HERO7 White/HERO6 Black/HERO5 Black) - Official GoPro Accessory (AFLTY-005) : Electronics
75% X 25% GOPRO 5,6,7 2 Bar Scope Holder Firefly S8E Side-Cam kit
Eaglevision Scope Cam for GP 5,6,7 Hero Black - Hajimoto Productions LLC
Eagle Vision 75% X 25% GOPRO 5,6,7 2 Bar Scope Holder Firefly S8E Side – Karani Outdoor & Tactical
Scope Cam System for GoPro 5 6 7 –
Floaty for GoPro Hero 7, Hero 6, Hero 5 Cameras, Orange Floating Case for GoPro Floater Accessories with Screw Use for Water Sports Swimming Diving : Electronics
Eagle Vision Fully Universal Camera
Firefly 8SE to Eaglevision Scope Cam - Hajimoto Productions LLC