This dome port replaces the included port on the Ikelite TG-3/4/5 housings. It will restore the camera's angle of view below the water to be roughly the same as above. This should give you over a 70 degree field of view underwater. This isn't hugely wide compared to what can be achieved by attaching an external wide angle lens, but does allow several other advantages and is definitely an improvement compared to using the camera with a flat port for many types of shot.
Wide angle, macro, and zoom
Underwater, the dome corrects for refraction to provide the full 25mm wide field of view. That's substantially wider than a flat port, which reduces the field of view to approximately 33mm. The dome supports full zoom through and you can still take advantage of the camera's fantastic microscope macro mode.
At the surface, the large dry dome gives you greater control to get a clean, smooth water line when shooting split shots (half-in, half-out of the water). This type of shot can be impossible to get with a flat port, and extremely difficult with a wet lens or dome where you're fighting double water lines.
- Ikelite Housing for Olympus Tough TG-3, TG-4 # 6233.03 / 6233.04 / 6233.05
- Ikelite Housing for Olympus Tough TG-5 # 6233.06 / 6233.07
Housing is not included with this port