bvanant

I vote for dry gloves as well when you go dry, but the 4th Element gloves should be fine. It should be easy to 3d Print some knob extenders, Bill

I think that it is related to both time on the market and popularity. All TTL protocols are mostly proprietary. Canon wants to sell their strobes, but other strobe companies figured out how to decode the TTL signals for both Canon and Nikon. At this time Sony was not a real player. Same for UW. Heinrichs Weikamp figured out how to decode Canon and Nikon when they were the major force in UW cameras and before Sony was a major player in mirrorless cameras. Now you can get almost all camera brand's TTL. Bill

Sent you an email BVA

These will work with Inon strobes, but not likely with Sea and Sea. Also they are big (5 mm is quite large). It also depends a lot on the exact placement of the LED trigger (at least mine is quite sensitive to left-right alignment. Bill

I can certainly buy you some fiber and ship it to you via USPS. Should cost about $23 or so for an large envelope full. Bill

lovely photo Bill

That seems a lot. Most of Nauticam Housing Rebuild Kits are $180 or so. $300 of labor also seems a lot. I think a housing rebuild is like 5 hours so they are billing at $60/hr. I would check with Reef and see what they are charging. Bill

Take a look at Richard Salas's work. He often uses only a single strobe but I think it is always attached to the housing. Holding it in your hand seems strange and a bit risky if a dive situation happens. Bill

Unlike Chris I typically only take the o-ring out once a week or so. But I do inspect to make sure there is no sand or grit (In Bali I clean it every day). I do clean out the threads in the cap regularly and put a bit of Tribolube on the wall of the cap so it screws in easily. Haven't flooded an INON (15 years) but have had a couple of floods with S&S. Bill

That and in many dive destinations I suspect travelers from Australia, NZ, Korea etc. will be welcomed but from the US (at the moment) not so much. Bill

In fact the dimerization it is done at 80C in a reaction tower with lots of cooling. The chlorine addition is done at 60C or so (at least according to my very old o-chem text. BVA

We have had the same Garuda experience but I think Lion/Wings now have a zero allowance for checked bags, you have to pay for everything. Typically for 2 of us about $80-$100 US per in-country flight. Bill

The whole wetsuit story is getting more interesting. It turns out (I think) that the Yamamoto guys actually use the tires by burning them to make the heat to convert the acetylene into chloroprene. Waste heat then supposedly goes to an eel farm. In any case what isn't clear is why polychloroprene from chloroprene from acetylene is any different than from butadiene. Marketing is a wonderful thing.

You want the Asahi stuff MCQ 1000 https://www.i-fiberoptics.com/fiber-detail-asahi.php?id=3355&sum=166 Now it is $7.50 per meter. Bill

Chris: Nice write up. One point is that I don't think the limestone needs to be replaced. I think it goes like (from an old paper in J Chem. Soc (1957) Ca(OH)2 + Heat (500+C) -->CaO + water CaO + C +Heat (2000C) --> CaC2 +CO CaC2 + H20 --> C2H2 + Ca(OH)2 It is the carbon that is replaced. In my remembrance in the US they used charcoal as the carbon source, probably cleaner than tires but not as eco friendly. I think all the stories about more closed cell and warmer are all marketing BS. Once you have chloroprene then you can process it however you like Bill