Technical Scuba Diving
Background Tyler had recently gone out diving with friends for his birthday. While they were heading to the dive site, he saw something on the sonar that looked interesting. After diving their original planned dive site, they jumped in to see what was at the target. They ended up finding a steel hull boat that [...]
Intro The "Butterfly Effect" is part of chaos theory in physics. The theory is that a small change in one state can result in large differences in a later state. The prototypical example is that a butterfly flapping its wings can result in a tornado. I ran into a "Butterfly Effect" between building the model [...]
This is my 200th post and I wanted it to be somewhat special so I am posting what I consider one of my best photogrammetry models of one of my favorite wrecks. Background Many might not understand why the USS Hogan is so appealing to dive -- after all, there is little left of the [...]
Summary I conducted Dive #4 for my Yukon photogrammetry project on Sunday, 6 November. The model is now close to 5,000 photos. I spent all week working on the model build process. I went down a lot of rabbit holes and my computers were working overtime. I'm definitely pushing the limits for the current hardware [...]
I had another dive on the Yukon and had planned on finishing the front of the wreck, starting the bow and starboard side and try to get some of the starboard edge done. The starboard edge is probably one of the two hardest tasks for this model. The reason is that currents often flow up [...]
Background As part of my "lemonade" week, we were with Lora on the Marissa looking at some targets pretty far south of Point Loma and needed a second dive at a reasonable depth. I had dove the Corsair in that area a while ago and thought it would make a good target for a photogrammetry [...]
I recently posted about a presentation I gave to the Orange County Underwater Photographic Society on Deep Wreck Photography. Part of the presentation described the benefits of photogrammetry but didn't provide any information about it. I returned and gave the presentation below which is more of a primer on the basics of photogrammetry, how it [...]
Background Due to all my travel and target diving in San Diego, it had been a LONG time since I had gone diving with Ray & Kyaa @ Sundiver. We arranged a day to go dive some targets in Santa Monica Bay that Tyler had and then also check out a few things Ray had [...]
Background Last year, as part of my learning progress of building photogrammetry models, I decided to build a model of the guns (whose barrels are fake) and a model of the prop (which is also not the real prop) on the HMCS Yukon wreck in San Diego. They were well contained projects and helped me [...]
I was contacted earlier this year and asked to give a presentation to the Orange County Underwater Photographic Society on some of the shipwrecks and airplane wrecks in Southern California. Since it was a group of photographers, I developed a presentation about some of the challenges of taking photos on Southern California wreck dives that [...]