Ronald’s own description on his Youtube Channel is as follows:
I have been diving over 40 years, and still Tech dive and HD 1081 Video, using Sony FX system in a Gates housing, so depth is not an issue. My E,mail is feilla[at]aol.com. Should you need to contact me, please do so. Great diving guys and girls over all the world, be safe and have fun!!
https://www.youtube.com/c/Mudiver8/about
His YouTube channel is found at https://www.youtube.com/c/Mudiver8/videos. Too many nice videos to see, but we’re just linking one below, more to see in the link we just shared above. You can also find him on Facebook here.