SwiftFF5

Having been to Cuba and having dived the Gardens there, I can tell you that the crocs move pretty quickly and follow focus is important. I was shooting video, so this may not apply to you. However, they do get close, so a shorter lens is probably good as TimG says. One meter or less is not uncommon. It is a very cool experience, have fun! I would love to go back someday.

Very nice, thanks for sharing. I will be in Roatan again in a couple of weeks, and can't wait.

I love that shot of the tunicates, beautiful color.

That must have been an amazing trip. Thanks for sharing.

Back in the dark ages, when I worked as a mechanic's assistant in a gas station at 16 years old, we would use Coke to clean the corrosion off auto battery terminals. The phosphoric acid in it works well for that, but then you need to flush it thoroughly with fresh water to remove all the sugar. I have used this trick multiple times since then.

Thanks, 'll be there in mid-February - hope you have great trips as well.

Very nice, I recognize some of those spots. You found more nudibranchs than I normally see, so I guess that I am going to have to look closer. We just bought our airline tickets for our next trip back to Roatan, and I can't wait.

Yes, I have seen lots of those in Roatan, but never knew what they were. Now I will have to check them for the skeleton shrimp. I had no idea that they might be there. Thanks!

I use A2 Hosting for several domains. As I recall, it is $9.99 per month.

There are several threads here already on this topic. Here is a link to one of them:

Nice work, I can see why they would want to use that for marketing.

Yes, I did have to try a couple of positions before I was really happy with them. I have mine set just barely below my line of sight, so that it is easy to look down slightly to use them. Good luck.

Like @Bill1946, I use the stick-on lenses in my mask with good success. They are certainly the cheapest option, so you could try them first, and if they work - great. If not, you aren't out much money, and can try something else.

FWIW, Edmund Optics is a great resource. I may have to look through their catalog to see if there is anything that might help you. https://www.edmundoptics.com/ If you want to look through their selection of beam splitters, you have quite a few choices: https://www.edmundoptics.com/search/?criteria=beam%20splitter# .

I don't shoot stills, but have an interest in optics, so I took a look at your design, and it looks like a great idea. I wonder how well the 50% mirrors hold up to seawater. Any idea? I do like the design, though.