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This may not be understandable at first but as someone who has to travel to dive i would say - save money and travel light. In my world it means get nauticam housing with 30mm port + WACP-C + new 105 macro + 100mm new macro lens + 28-60 for wacp-c + (perhaps) sony TC2x - and you will be set for foreseeable future for everything from lembeh creatures to big ocean stuff like Socorro mantas etc. For both photo and video. Just stay away from adapted stuff - looks nice on paper but in reality unless you have it lying around not worth the headache. Image shot with WACP-C at 60mm on A1 (yes its a crop but you have 50MP too so what...)

China copy of a Hong Kong China company product? Its China all the way down!

Buzzer is more annoying than useful. Personally, i would just use it as is if simple measures can't fix it.

Wow, that's actually great news! .. for me as a user / potential buyer to finally see some quick competition catching up. We need more companies to break the Nauticam uw lens monopoly. If it's coming at a reasonable price, I'll probably order one from Hydronalin.

It's very ironic that you start to discuss about corner sharpness performance of a lens that does not project corners at all to the sensor 🤣 😂 ... But I am 100% with WASO and would love to see some RAW files with that lens + WWL-C.

Thanks! I've worked quite a bit in Khao Lak on day trips and liveaboards to Similan and Surin NP - the shop I was working for was run by a photographer, and he event went diving in Thap Lamu pier (for gobies) - this is where most liveaboards leave from and is also a fishing pier, so it was quite extreme 😄

First thing I would try is a multimeter to see if voltage is applied to the buzzer when it activates. It could either be the buzzer itself or the relay/transistor inside the electronics box that is not switching voltage to the buzzer. I assume the vacuum system is working, I expect the buzzer could be replaced if you had enough electronics experience to work out what type it is a select an appropriate replacment. Something like this would likely work, but you would need to check the voltage applied, I expect it would likely apply direct battery voltage. https://www.jaycar.com.au/mini-pcb-mount-buzzer-9-14vdc/p/AB3459 as you can see it's a $5 retail part.

To be fair and look at both sides of the coin, I think it’s important to mention the study by Gallagher & Hammerschlag (2011). Their research highlights the 'Conservation Shield' provided by the shark diving industry, showing that a single reef shark in the Bahamas is worth about $250,000 USD in tourism revenue over its lifetime, compared to just $50-$100 USD if killed for its fins. This economic reality was a massive win for conservation. It gave governments a concrete reason to create Shark Sanctuaries and protect these animals from overfishing. The core argument was simple: a shark with slightly altered behavior is still much better off than a dead shark. However, while I agree with the importance of that study, we have to remember it was published in 2011. Now, in 2026, the context has shifted significantly. Back then, the "economic shield" was a desperate and necessary tool to stop the immediate slaughter of sharks. It worked, and many populations stabilized as a result. But after 15 years, we have to ask ourselves: are we still doing this for conservation, or has it just become a mature, high-profit business? At what point does 'saving the sharks' stop being a valid excuse for turning a wild ecosystem into a controlled photo studio? In 2026, we have better technology, better-managed Marine Protected Areas, and many examples of 'Blue Tourism' that don't rely on feeding to be successful. The conservation argument was a vital starting point, but it shouldn't be a permanent license to ignore anthropogenic impact indefinitely. It’s a tough balance, but I believe it's time to move past 15-year-old justifications and aim for a more ethical interaction with these apex predators.

Hi @bghazzal, they are from Khao Lak area in Phang Nga.

Thanks for the feedback. I want to clarify that I’m not a marine biologist, but after seeing some comments, I did some research on Google Scholar to see what the peer-reviewed data actually says. It’s true that the scientific community isn’t unanimous, and the debate is quite complex. On one hand, some studies suggest that the impact might be limited. For example: Hammerschlag et al. (2012) found that despite frequent feeding at Tiger Beach (Bahamas), tiger sharks still maintain their long-distance migratory patterns. Gallagher & Hammerschlag (2011) argue that the economic value of shark tourism provides a vital 'conservation shield' against the much greater threat of overfishing. On the other hand, there is significant evidence of localized behavioral changes: Vertical Shift in Bull Sharks (Carcharhinus leucas) - Fiji: Research by Brunnschweiler and Barnett (2010) showed that these sharks completely changed their vertical distribution and space use to match feeding schedules. Social Aggression in Grey Reef Sharks (Carcharhinus amblyrhynchos) - Australia: Fitzpatrick et al. (2011) documented increased intra-specific aggression and injuries due to the 'conditioned response' triggered by feeding. Health Concerns: Some studies (like those in Oslob regarding Whale Sharks) show that a human-provided diet can lead to nutritional deficiencies compared to their natural, more varied diet. Ultimately, while science may not have proven catastrophic long-term damage to entire populations yet, from an ethological standpoint, altering the routine of an apex predator is rarely 'zero cost.' To me, the real question isn't just whether the shark survives, but whether it’s right to turn a wild animal into a conditioned one for our own entertainment and photography. I believe we should base our community's ethics on both our passion and this kind of scientific precaution.

Nice - where is this in Phang Nga? Khao Lak is also in Phang Nga province but I'm guessing this would be Phang Nga bay / east of Phuket rather than the Andaman sea? Phuket also has nice macro shore dives like Kata beach ❤️

Just got back from 3-day dive trip in Phang Nga, Thailand. The area is famous for macro diving. This is a first dive for my new camera setup with R6 II and EF 100 Macro in Marelux housing.

Hello all, Last week I took the first step toward upgrading my current kit after finding a very good deal on a Nauticam A1 / A7S III compatible housing, which will eventually house a Sony A7S III as my primary video camera. The housing is almost new. It has only been in the water three times and was originally purchased for a project that did not go ahead. It was tested, then put into storage for nearly five years. So far, so good. However, when I tested the moisture alarm circuit with a damp Q-tip, the buzzer did not sound. The LED switches from blue to red and requires a reset, but there is no audible alarm at all. I initially suspected a low battery, so I replaced it with a brand new Panasonic cell, but the result was the same, none of that high pitched squeal we're hardwired to fear, a world of silence... I trust the person I bought it from and do not believe the housing has ever been flooded. There are also no visible signs of corrosion anywhere inside. My assumption is that this may be related to the long storage period something having degraded or come loose. I'm wondering whether others here have experienced failed or dead buzzers in Nauticam moisture alarm circuits, and whether there are any meaningful tests or troubleshooting steps I can perform before replacing the circuit entirely. At this stage, I assume the whole circuit will need to be replaced if the buzzer itself cannot be isolated and repaired. Thanks in advance for any insight. Cheers! Ben

hummmm China copy?

Doesnt sound familiar at all, right?

Welcome Alastair, good to have another Sydney-sider on the forum. You'll have to break out your passport and come south one day and dive the Steps.

Hi all, i'm excited to join the WaterPixels community! I'm based in Sydney Australia and have been shooting underwater since I was a teenager about 30 years ago. These days I primarily shoot underwater around the northern beaches of Sydney, with an occasional trip to somewhere more exotic. My interests are pretty evenly split across wide angle with available light, wide angle with strobes, and macro. I'm looking forward to learning from the WaterPixels community and connecting with like-minded underwater enthusiasts from around the world. Thanks for having me.