Davide DB

With such a small sensor there is little to do except perhaps act with computational photography algorithms. I would say that the latest Insta Ace Pro and DJI have much more advanced NR algorithms than the Gopro. However when you raise the ISO and the noise reduction algorithm comes into play, you lose a lot of detail. People's faces in the tunnel for example. Watch these videos in full screen maybe on a 4k monitor. In this video the ISOs have been locked at 500 emulating what the human eye sees: In the channel then there are lots of examples with the latest action cameras. From my experience, in the Mediterranean a red/cyan filter works up to 12 meters, maybe 15 with a mirrorless with a decent sensor. Then it's also a matter of taste of course. Regarding the Mediterranean. Sure, there are greener and bluer areas, but when it comes to green or blue water filters, the Mediterranean is always considered quite green precisely because of the characteristic type of plankton. Perhaps some spots such as the Aeolian or Pelagian islands are exceptions. For example in the Tuscan archipelago even when you have 30+ meters of visibility, when you do CC you will always find yourself removing a more or less green dominant. Where do you dive?

You don't want to throw away a Keldan, do you? What model is it? Once you repair the flooded one, if you have a pair, they will be very easy to sell. They are very rare in the used market, and there is a reason for that. BTW I didn't know there were vacuum valve lights. I think it's unique. It depends on your use but if you have a Keldan CRI you will find huge differences in color correction in post. Impossible to compare them with the BigBlue ones that don't even have constant output. Again, they are the cheapest on the market for a reason. I see they are used mostly as model lights to enlight caves and wrecks.

I understand your enthusiasm but we have a specific thread for this lens. Could we just use that? 🤪

Yes but * indicates the best quality option and probably the behemoth 230 mm is.

Did you already choose your new rig?

I'm sorry to hear what happened 😞 Did you try to write directly to Keldan? Keldan batteries have a proprietary circuit showing runtime and time to full charge, so it depends if the circuit is still working. Time ago a got battery replaced here in Italy but the circuit was ok.

I wrote Kraken and Weefine about their 7" monitors. No replies from them 😶 I don't understand why all these new monitors (also SUPE) are depth rated to 80m. Once it was 100m. This breaks the deal for me. Another strange spec is their weight underwater: Kraken writes 2140g on land/560g underwater for both models 5.5" and 7". Very strange indeed and it's a lot. Anyway their lights are good.

Of course Dave, that's why I wrote that "it depends on the scratch." Sometimes it goes away completely, sometimes it is visible to the naked eye but the polishing operation rounds the edges and in water it is no longer visible. Other times you have to throw it away but in my experience I always happened to be in the first two cases with very good results. That's why I would have tried before changing it. Now maybe we could help him understand how to replace the dome. I have no idea.

Welcome to this new community! You have come a long way to get here! This forum is just for introductions. For split shots, they were debated a short time ago. You can continue here:

Hi Nick, Welcome aboard!

It depends on how the scratches are deep but believe me, polishing a polycarbonate dome is really easy. Just try once it come back.

Yesssss

AOI Quick Release Adapters for UWL-03 and UCL-03 wet lenses are now compatible with the DJI Action 4 or 3 and the Insta 360 Ace and Ace Pro.

One year ago I sent a RGBlue light in Japan for repair. Shipping and custom duties were really expensive. Try to contact FMfotovideo in Italy and ask them to quote the dome swapping. Second option: try for yourself with a scratch remover as Novus or similar. I repaired my polycarbonate domes several times with perfect results.

Looking forward to see the full review. In 2024 Canon didn't implement a one button MWB. AFC seems to work with animals (otters) They didn't show the housing. Are R5 and R5 MKII bodies the same? (I don't think so). So, as usual, Nauticam got a body from Canon in advance and the housing is still a secret 😉

In an endless race it seems that the release date was chosen to try to dampen the enthusiasm for the release of the new DJI action camera. We will see if I am proven wrong by the new releases but I believe that in some ways we have now reached a technical limit in these cameras and without a radical change in design, we will only have incremental improvements but nothing revolutionary. Insta has gone to the 1" sensor with 8K and this seems to be a physical limitation for a fixed focus camera. Already the Insta is borderline: users have noticed that at the arm lenght distance (classic v-log) the camera is slightly out of focus and the solution is to apply a diopter. Perhaps this is why DJI and Gopro have not moved to 1" already. They should change the lens design. If we think about it, today any high-end phone has a photo section that is light years ahead of any action camera but also ahead of many mirrorless cameras (fortunately for many brands, Samsung years ago decided to get out of the photo market, considered too niche by the Korean giant). It is normal to have phones with multiple 1" lenses and PDAF l, tracking etc. All mid- to high-end phones make use of computational photography. This is another area where there will be big news in the future. Imagine the photo section of an iPhone/Galaxy enclosed in an action camera style case. The revolution goes from there.

It seems more squared than the 11/12 moreover they added some kind of heat sink. Maybe the Gopro 20 will be like that: Jokes apart, we don't know anything about its HW specs. The optional macro lens is the most interesting thing. We will se if it will be backward compatible and eventually compatible with some uw housing somehow. P.S In a few week we will have the latest DJI Osmo 5 too...

It seems that some photos of the upcoming GoPro 13 leaked online. The new version should be unveiled in the next few week. Come gentlemen come. Another round, another race! https://photorumors.com/2024/08/15/gopro-hero-13-camera-leaked-online/

Davinci Resolve is OK except one caveat: Resolve free on Windows doesn't support 10 bit h.265. So the latest Gopro files. You have to transcode the files before import. Someone was able to read them via a 1$ HEVC codex on the Windows store, someone not. Moreover in the free version you cannot export 10 bit files.

@Adventurer Why don't you post some pictures you were talking about in the other thread? The ones you don't like because of the extreme distortion. I would say the collection of tiles and sketchboards is complete. Real examples are needed. Don't be shy and don't be ashamed. @DreiFish has posted his own. P.S. I'm thinking to merge these two threads somehow...

They are in the same ballpark. I would stick with it.

Welcome aboard! I'm sure on the forum you will find a lot of good reasons to dive and photograph again 🙂

I'll try to elaborate a bit. The parameters that adjust a photographic (and video) image are aperture, shutter speed and ISO. The Gopro, like all action cameras has a fixed aperture. The one on the Gopro is F2.8. If we also lock the shutter (hoping to use the 180° rule), to expose the image correctly, the camera will only be able to vary the ISO which is the least flexible parameter. In full light conditions the images would be totally overexposed (F2.8 1/50 ISO 100). In low light, at ISO 800 the games are over already. But then why did they put this option in the menus? Marketing certainly and then an option that can be useful in special situations with controlled and constant light. At that point you can intervene with ND filters. Or to 100% eliminate flickering from artificial light.

No differences at all as summarized in the last post. With the Backscatter version you have the additional option of using their filters.