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DS51 is Sold. DS125s are still available.

I have an old Isotta housing for my canon G5x... and since 4 year an Isotta with my Canon R5. I'm happy with it... it is a brand from Europe and in the actual situation It is important for me to buy "local".

I am using Bambulab TPU for AMS - So yes it does work with the AMS! I've only recently started to work with this version of TPU, and it is very nice. It is too rigid for softer rubber parts needed for things like my sync-cable-connectors, but great for more structural parts. This Port Cap and the Stage Bottle Hose Organizer work great with it. It's also super convenient to have it loaded and ready in the AMS at any time. https://makerworld.com/en/models/2025358-scuba-hose-organizer-for-stage-bottles#profileId-2183580

Another option is the port 65 and 12-50ez, has to be at 14mm or so but a very good combo.

The grip tabs on the cap are not going to catch due to the bevel at the bottom, but the bungees will hold it in place. I'll add this to the model.

I am curious about the 68 shore TPU - who makes it, and is it AMS compatible (I'm guessing that it is not)?

$500usd includes two batteries, charger and Olympus flash. Looks mint. Just not using it and perhaps someone knows an aspiring photographer who can.

Fantastic! Although I mostly scuba I also enjoy breath hold photography in kelp forests.

Precisely

One data point doesn't make a trend but it is a start. Hopefully there will be more positive ones to follow and maybe this will spread too.

I think yes, it is S1 mode, single flash Bill

A quick question that perusing the OM did not satisfy. There is no mention of a pre-flash cancel, does this strobe have that capability? I understand this is a full manual only strobe, nonetheless I need a pre-flash cancel mode.

Join me on an underwater adventure as I dive into the warm, crystal-clear waters of the Philippines. This video takes you below the surface to explore vibrant coral reefs, some of the best macro diving in the world, featuring some of the incredible marine life that makes this region one of the world’s top dive destinations. From swirling schools of reef fish and graceful sea turtles to tiny macro life hiding among the corals, every dive reveals a colorful, thriving underwater world shaped by tropical currents and nutrient-rich seas. The Philippines sits at the heart of the Coral Triangle, home to some of the greatest marine biodiversity on Earth, and every descent feels like entering a living aquarium. This journey highlights not only the beauty of these reefs, but also the fragile balance that sustains life beneath the waves. Whether you’re a diver, ocean lover, or simply curious about what lies below, this video offers a peaceful glimpse into an ecosystem bursting with life and color. Filmed in: The Philippines (Anilao and Puerto Galera) Looking forward to hearing your thoughts and critiques! Thank you for watching!

Same here, lack of a slave TTL mode is pretty much a no go for me also. I would buy the HF-1 or the new Atom but for one thing, no slave TTL. My Sony and my Canon neither support RC or the Sony (RC) modes and will work only in a manual mode with those strobes. And whatever triggers Backscatter offers do not work with either camera system. Not everyone shoots Olympus or a TJunk, seems to be a blaring omission to me. The DS130 might be a go but YS strobes seem to have issues with reliability.

I sent you an pm.

Hello, I'm thinking of changing my current underwater rig for something smaller and I've heard Isotta housings are very compact compared to other aluminium housings. Is anyone here using an Isotta housing and loving it? I'd love to hear thoughts/feedback. I use my setup professionally and my camera of choice for the Isotta is a Sony A7RV. Many thanks, Lou

If you haven't bought the port yet, I’d recommend looking for a used 14-42mm II. I found mine for 60 euros. There’s also the 14-42mm PZ, which uses a shorter port, but based on tests, the 14-42mm OIS II seems to be the better lens. P.S. We are speaking of plastic kit lenses...

Hi Lou, Welcome aboard! We have other freediving photographers here in the forum. We hope you enjoy your new community. Ciao

Hey hello! I'm a freediving ocean storyteller with a background in marine biology based in Pembrokeshire, Wales, UK. My main photography focus is on marine life but I also enjoy creating natural artistic shots of freedivers and swimmers, with a leaning towards the natural nude! Living in Wales I spend a large chunk of the year waiting for the viz to improve. My husband and I spent three years as liveaboard sailors between 2020 and 2023, exploring the Canary Islands and the eastern Caribbean, maximising freediving and photography time. My favourite place to dive is still the kelp forest on a sunny day, with just my breath and natural light as illumination. I love the challenge and drama of it. I'm a certified scuba diver too, and I spent many years as a scientific diver, monitoring marine life in a conservation role. I recently found the WaterPixels community and am here to share my knowledge of marine life and photography, and learn from other members 🤗

Hey JAM! Welcome to Waterpixels. It's good to have you with us. We hope you really enjoy the forum. Best wishes Tim

Did someone test out the maximum possible, blackout free, fps rate when the HF-1 is in HSS mode? Thanks, Wolfgang

Hello All, I'm a pretty new underwater photographer. I've done a bit of above water photography and finally jumped into the underwater game. I've got a Nikon z7ii, Ikelite housing, and two Backscatter HF-1 strobes. The majority of my diving is in local cold freshwater with not a lot to see, but it makes for good practice. I've got a moderate amount of diving experience at about 120 dives.

Thanks for the kind words! It’s definitely a substantial-looking rig, but it's surprisingly nimble once you're under the surface and incredibly easy to handle. Plus, the sheer power of the Hybrid Flash is a total game-changer—it’s amazing how much reach you have to light subjects from a distance. To answer your questions: Yes, we were using the spot beam. You're exactly right—where those two beams merge is the optimal working distance for the OS-3, which is 7.8 inches (200mm).

Thanks Chris!!! I found online a test with the 12-32 and the guy didn’t had vignettes also at 12mm… but I think he was with the M67 old wwl1… although zooming in a notch isn’t a big issue.. 😅 Thanks again! 😉

Hmmm, not sure I've seen anything I'd call strobe brand bashing. Well not since the old Sea & Sea issue anyway. Seems to me these are all perfectly good strobes we're talking about. We all have brand preferences based on personal experience, a specific feature or just their good looks. Producing truly accurate comparisons is incredibly difficult given the vagaries of environment, set up, batteries etc. Some amazing work has been posted here by folks who have put hours of work and thought into testing - for which, massive thanks. After that, yeah, I'm sure one can be tweaked slightly differently from another. But aren't we getting a bit beyond the point? Take your pictures and enjoy them. No matter how perfect the bit of gear might be, something underwater is going to lead to some sort of degradation in perfomance.