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 []
Scope Cam System for GoPro 5 6 7 –
Eagle Vision 75% X 25% GOPRO 5,6,7 2 Bar Scope Holder Firefly S8E Side – Karani Outdoor & Tactical
Scope Recording Equipment – Karani Outdoor & Tactical
Eagle Vision Universal Side Mount Scope Cam Kit — North East Airguns
Eaglevision Scope Cam for GP 5,6,7 Hero Black - Hajimoto Productions LLC
Eagle Vision 25% X 75% GoPro 5,6,7 Black
SKYJFFJ Scope Side Camera Adapter Bracket - to Be used with Sports Cameras - for Outdoor Scenes
Eagle Vision 25% X 75% GoPro 5,6,7 Black
75% X 25% GOPRO 5,6,7 Black, Firefly S8E Universal Scope Holder Side-Cam kit
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
Eaglevision 25% x75% GoPro 5,6 & 7 Firefly S8E Side-Cam Kit –
SKYJFFJ Scope Side Camera Adapter Bracket - To Be Used With Sports Cameras - For Outdoor Scenes : Electronics