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Thanks guys :)

My new video of small critters from the Lembeh Strait and Anilao. Filmed with a Panasonic GH4 in a Nauticam NA-GH4 housing with either 2 x Keldan Luna 4X lights or 2 x FIX Neo 1000 DX SW II lights. I used an Olympus M.Zuiko ED 12-50mm f3.5-6.3 EZ lens and a Olympus M.Zuiko Digital ED 60mm f/2.8...

My new video of humpback whales in Tonga. This is made in 2016 with 2008 30i HDV footage which I deinterlaced then slowed down from 60p to 30p (before the mother and calf, which is real-time). I hope it conveys some of the sense of awe of swimming with these magnificent animals. Feedback...

Lol, couldn't agree more. I wouldn't mind coming back as one, especially at Anilao.

I got some nice macro footage of Nembrotha chamberlaini nudibranchs mating at Red Rock and Twin Rocks in Anilao last year. Nudibranchs have barbed penises to hold them together and the last clips shows the effort and twisting movement required to pull that pair apart. Shot with my Panasonic...

Often overlooked in the past, the near-white lacy bryozoan, Triphyllozoon inornatum, has become the subject of attention recently since divers at Ambon and Alor noticed various small critters living in them. On a recent trip to the Lembeh Strait I was lucky enough to spot a bryozoan goby at the...

Thank you very much for this pchef, it helped me a lot. I also had the problem wherein the white actuator was bent to one side and not operating the valve properly. It also seemed to be stopping the valve from properly closing, although a further problem was that my silicone one-way purge valve...

I shot this footage of a sacoglossan (sap-sucking slug) in May in the Lembeh Strait. I was unable to find a match for it in my references, and Terry Gosliner (on the strength of 1 frame grab), reckoned it was a new species of Stiliger sp., so I made a little YouTube video of it. I...

A very short macro video of saddleback clownfish, Amphiprion polymnus, tending to their eggs at Bethlehem near Anilao. Shot with the with my Panasonic GH4 in a Nauticam NA-GH4 housing. I used an Olympus M.Zuiko ED 12-50mm f3.5-6.3 EZ lens. I can't wait to get my Olympus 60mm macro lens on...

Thank you very much. Warmwater Wank, I was using an Xit 404 tripod with twist-lock legs. No chance of a steady shot at that magnification without it.

Not quite sure what happened here... Wanted to try something different and it turned into this pompous piece. Coleman shrimps (Periclimenes colemani), urchin shrimps (Allopontonia brockii), and zebra crabs (Zebrida adamsii) live and travel on fire urchins (Asthenosoma varium) in Anilao...

A silly little video of a small school of saddleback clownfish, Amphiprion polymnus, in the shallows in Anilao, the Philippines. Shot with my Panasonic GH4 and Olympus 12-50mm f/3.5-6.3 ED M.Zuiko EZ lens in Nauticam housing. zr40xNW3Qyo

Thanks for all the advice. The problem was not because of a drained battery. I finally got it working. It seems that one of my mistakes was to pair the Petrel with my computer through Windows before attempting to download the logs through Shearwater Desktop. I should have let Shearwater...

I can get my Petrel to connect to my laptop running Windows XP to upgrade the firmware using the Shearwater dongle, but I can't get it to connect to my desktop PC running Windows 8.1. At first I tried and failed to connect with my motherboard's (ASUS X99 deluxe) on-board bluetooth adapter. Then...

Nah, I've already dived it 4 times, and it's Thailand. I'm not that bothered. I like the compass in my little console. If they'd brought out a big overhaul it would be a different matter.

Got my Petrel the day before the Petrel 2 was announced, and it's the old hardware version that can't be upgraded. :(

Big difference! And now I understand your comment near the start of the thread.

I don't believe that is true. My Gekko may typically show the floor at 15m while the ceiling is at 3m. By your reckoning, one might still be incurring additional deco penalty when as shallow as 5m, which is highly unlikely unless on an extremely long dive. Could you please quote the section of a...

Andrew, this implies that the Helo2 will start clearing deco below the floor. How can that be so, given the very definition of "floor" that you later posted. For info, from my Gekko manual: "Rather than requiring you to make stops at fixed depths, the dive computer lets you to decompress...

Actually that doesn't appear to be true. Taking the ascent into account (looks like 10m/min), the actual stops are 1 minute at 15m and 4 minutes at 3m. Here's the DM5 table at P-2: Depth - Run time - Level time 30m - 2min - 22min 15m - 27min - 1min 3m - 29min - 4min 0m...