Backscatter M52 Underwater 81° Wide Air Lens port part but these do cost more

but these do cost more money and are heavier as they contain far more glass

Ikelite Stay-Brite LED technology outshines budget LED lights hour after hour

2 INCH PORT EXTENSION

choose the 200DLM/A Underwater Housing for a7C II

Using the camera’s flash exposure compensation controls to make fine tuned adjustments to the strobe’s intensity

Backscatter M52 Underwater 81° Wide Air Lens port part but these do cost moreThis lens is ideal for the Olympus OM System TG series of cameras when fitted inside a housing with a 52mm thread such as the Olympus OM system PT housings and the Seafrogs housings. This lens is designed to be compact and light weight. It restores the camera's normal land angle of view when underwater. It is good for doing under over shots assuming you find a method to stop the water from draining between your camera's port and the rear of the lens