Everything posted by Davide DB
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Sony A7rV Autofocus Problem
Hi Susa, Could you give us some more details about the problems you encountered with the AF in macro? You are talking about shooting on land and in photography, right? No video?
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A1 II or A7v as a video camera
Long story short: The A1 II is the superior video tool, but unless you need 8K or uncropped wide-angle slow motion, the A7 V is arguably the best "hybrid" value Sony has ever released. The Sony A1 II is strictly "better" for video performance. It is a flagship beast that does everything the A7 V does, but without the compromises (crops). However, the Sony A7 V is the "smarter" buy for 90% of users, offering 80% of the A1 II performance for less than half the price. 4K 120p (Slow Motion) This is the biggest differentiator. Sony A1 II: Shoots 4K 120p with a negligible 1.1x crop. You can use your wide-angle lenses and they stay wide. Sony A7 V: Shoots 4K 120p with a 1.5x (Super 35) Crop. So for macro work you woul have some advantage with the A7V (but read later) Sensor Readout (Rolling Shutter) Sony A1 II (Fully Stacked): Uses a pro-grade "Stacked" sensor. The readout is insanely fast ( about 4ms) so it wins hands down. But underwater rolling shutter is really not a problem. Resolution & 8K Sony A1 II: Shoots 8K 30p. This gives you massive reframing ability in post-production (you can crop in 200% and still have 4K). Sony A7 V: Maxes out at 4K 60p (Full Width). It oversamples from 7K, so the image is incredibly sharp, but you don't have the 8K archive option. Low Light Sony A7 V "should" wins: Because it has fewer pixels (33MP) than the A1 II (50MP), the individual pixels are larger. In video mode (especially S-Log3), the A7 V is slightly cleaner at high ISOs (6400+). But here we are splitting hairs. Now we would need to understand what limits you find with your current A7RV which is still a beast of a camera. Yes, it has an 8k crop and the rolling shutter is high compared to others (but we said that underwater it is irrelevant). But your camera has Sony's most advanced AF. In short, unless there are specific requests, I would stick with the current camera and spend a lot of money on diving 😁 Ciao P:S. I am sorry to have killed your GAS.
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HOWDY!
Hi AquaZ Welcome aboard! Do you have a DSRL, Mirrorless or Action Camera? Ciao
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Traces or fogging inside an AOI diopter
I am afraid they might be assembled in a dry air or nitrogen glove box otherwise you would always have condensation.
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Dji osmo 360 underwater video
There's nothing you can do until a proper housing is available. Take a look at the last comments in this thread for the X5. Even the original "basic" case didn't solve the stitching issue. And I'm sure it depends on FW too. https://waterpixels.net/forums/topic/2592-insta360-x5-underwater/
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Nauticam Wet Lens On Other Systems
- Servicing an Housing Button/Wheel
I have just a hard button and a knob with no levers involved. Let's see if I dare 🤪- Servicing an Housing Button/Wheel
We talked about how often to service the housing and its price... But has any DIY hero ever tried to change the o-rings on a single button or a wheel? I remember seeing it done once on a Nauticam housing, and it didn't seem like rocket science to me. Provided you have the right spare parts and tools. It seems to me that once the micro circlip/e-clip is removed, the mechanism just slides out. I'm aware that different brands have different designs. Am I crazy?- Nauticam vacuum issue
Did you try to clean it? Inside there'a a mushroom valve and a spring. Maybe you have some debris or salt deposit on the membrane.- Nauticam vacuum issue
So, There are two possibilities: the electronic circuit or the valve itself. I didn't understand if you had tested whether, regardless of the light, opening the latches made the back come off, or if you felt air escaping when pressing the valve. Anyway, now that you've removed the valve from the housing, try washing it. If you have access to someone who services regulators or a jeweler, try cleaning it in an ultrasonic bath. Otherwise, soak it in vinegar for a while and actuate the valve by hand several times. Then rinse it and run clean hot water through it first, followed by air. It might just be that the internal mushroom membrane is dirty. I wouldn't dare take it apart. To avoid to ruin the valve, you need that tool or something like that.- CMC-1 vs CMC-2 DOF
I should start by saying I only shoot video with a GH5. I have the CMC-2 and I use it with a Leica 45mm or the Pana 14-42mm (a combination I hate). With the zoom, the situation is more complex because, as Chris said, the depth of field is a function of magnification, and many times I work at minimum zoom, almost to the edge of vignetting. With only the 45mm, the DOF is acceptable. This creature is about 9/10 mm long, and if you look at the grains of sand, you realize the DOF (1/100, f/10). I definitely could have gotten closer, but it was running like there was no tomorrow. However, with the 45 mm + CMC-2 even a Caprella sp. goes out of focus if it moves. Years ago, I had the opportunity to test the CMC-1, CMC-2, and Subsee +5 on several dives. The Subsee was the least powerful but easiest to use. The CMC-1 was the opposite. The deciding factor for me was the focus range (5 vs 10 cm). For video and the types of subjects I usually encountered, the CMC-1 was truly difficult to use, so I chose the 2, which was a bit of an all rounder. Now that I've gotten the hang of it, I wish I had the CMC-1, maybe something even more extreme. Naturally, only for static subjects.- Nauticam vacuum issue
https://waterpixels.net/forums/topic/1731-essential-spares-for-underwater-photography/#findComment-10796- Dome Port and Water Spots
A drop of diluted citric acid (20%)- A.I. is coming (underwater)
I don't even believe my own mother anymore 😁 It's a real shame that for any video, we are now forced to ask ourselves if it's AI. And fundamentally, if we're wrong about a video of dolphins and whales, who gives a damn! But now I see skepticism everywhere. I've read absurd discussions regarding images of war, from Palestine to Ukraine, about things we shouldn't have the slightest doubt about. Returning to the whale, at the 27-second mark, the fin on the left of the screen grows disproportionately large. I don't know if it was too far away and in shadow before, but it's suspicious. P.S. I was given a temporary Google Gemini Pro account, and a few weeks ago, just for fun, I tried to generate a small piece of video. Crazy. Essentially, I gave it the last frame of one clip I had and the first frame of another clip, and I asked to construct a particular scene in the middle t The result was "almost" perfect. It connected perfectly because it started and ended with my own frames.I should have tried with different prompts, but then I got bored and quit. Just six months ago, this wasn't remotely possible.- UW-housing service-Interval
We have an old similar thread here: https://waterpixels.net/forums/topic/729-having-a-housing-serviced/- Sony LYT-901: The End of Triple-Camera Phones?
I always say this: if only a small percentage of smartphone technology were used in action cameras, we would see a leap in their performance. And regardless, sooner or later, we'll find these features in our mirrorless cameras. The sensor has already gone into production, and the first smartphones incorporating it will be seen in a few months. Sony has unveiled the LYTIA LYT-901, a massive new image sensor (1/1.12-type, 200MP) that could fundamentally change smartphone cameras. Here is the brief summary: AI Zoom Breakthrough: The sensor integrates an industry-first on-chip AI processing circuit that handles intensive remosaicing in real-time. 4x Digital Zoom Quality: This allows the sensor to deliver high-quality, 4x digital zoom performance (up to 4K/30fps video) using only a single lens, achieving results previously limited to dedicated telephoto modules. Performance: It features high dynamic range (over $100\text{ dB}$ claimed) and supports up to 8K/30fps and 4K/120fps video capture. Implications: If successful, this technology will allow phone manufacturers to use fewer lenses, leading to smaller camera bumps, reduced costs, and more space inside the phone for components like larger batteries. In short: Sony is trying to replace the dedicated telephoto lens with a single, high-res sensor plus integrated AI processing. CineDDeath of the Triple-Camera Phone? Sony LYTIA 901 Sensor D...Sony LYTIA 901 packs 200MP and on-chip AI for 4x zoom quality, potentially replacing multi-camera smartphone setups.- WTB Nikonos adapter for Sony A7R camears (37202)
- Epic rendezvous with Orca feeding on sardines in Norway this November
It must be an incredible experience. Bravo!- New Nikon ZR Cinema Camera
So Ikelite won the race to publish the first Nikon ZR underwater video! The magenta tone escaped in some clips 😉- GoPro or DJI - which one is better under water?
Folks, We all get our information online. For our passion, YouTube has certainly become—for better or worse—one of the main sources, and over the years, each of us has their own reference channels. However, however... I would like to avoid exchanges of opinion about what is best turning into a competition of "who has the last link." It would be great if we discussed things through our own personal experiences, and not through videos with sensationalistic titles made by people who film their dirty laundry in their bedrooms. In short, I would like our forum to be a different place. A place for the exchange of first hand informations and not an echo chamber for other people's opinions. Ciao- Hello from Germany
Welcome aboard Oliver!- Ask for the setup with OM-1 for most of UWP scenarios.
If someone is not satisfied with the SMC-3, I'm here 😀- Starry Eyes in Kin Bay – Ornate Ghost Pipefish Clip (Okinawa main island, Japan)
Amazing macro details. The gills are incredible!- Fish and Marine creatures ID books
There's one on Abebooks for 463 USD 😱- Insta360 X5 underwater
Do you have some clip to see it in action? - Servicing an Housing Button/Wheel
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