Review on Olympus LG-1 Light Guide for Olympus TG Series Cameras (TG-1, TG-2, TG-3, TG-4, TG-5 & TG-6) by Michael Baker

I like it. It turns out to be very easy to use. Following the instructions for the camera and light guide box I was able to figure out how to install and remove it. There is no manual or instructions of any kind as to which light to use. This refers to the flash or the LED focus assist lamp. Turns out you need to use a focus assist lamp. This is easy to set up in camera, but the light guide should come with some instructions on how to use it. Others have also asked if it can be used underwater. It can be left underwater, but Olympus does not recommend using the flashlight underwater as the results will be unsatisfactory. Hence 4 stars for lack of instructions. Updated to add some pictures. Simply remove the cosmetic ring around the lens and align the LG as in the first image. Twist it clockwise about a quarter turn and it locks into place and is ready to use.