Jump to content

Davide Roveri

  • Posts

  • Joined

  • Last visited

About Davide Roveri

Profile Information

  • Gender
  • Location
    London, UK

Recent Profile Visitors

1,412 profile views

Davide Roveri's Achievements


Member (2/5)



  1. The body layout is from the previous generation of cameras so it can either be an a7 III or a7r III (the only different thing would be the badge on the top left hand side of tha camera which is unfortunately covered in the shot). The lens is 100% a Sony G FE 90mm f2.8 Macro, you can tell by the big focus ring with clutch mechanism and the double distance scale in different colours (you can just about see the red marking is feet above the white one in meters) 😊
  2. I gave it a go but, as i feared, the results are awful, even worse than perspective stabilisation alone πŸ˜… I think it's just too complex to process some movements and geometries for warping stabilisation algorithms. I haven't tried with the other options to be fair but i don't expect great results either..
  3. Absolutely! And this is on top of regular and impressive updates for Resolve which is becoming a phenomenal piece of software (and one you never have to pay updates for once you have a licence, which makes it very unique and absolutely commendable in my opinion)
  4. Because with a gimbal you can do more extreme movements (like running) and you can shoot with a normal 180º shutter speed. But this is a great feature to have nonetheless! 😊
  5. Ok, i did more testing today with a wider lens (10mm so 15ish mm equivalent) and i tried some more complex moves as well.. Few more notes: -45ΒΊ shutter angle is pretty much a necessity so all the clips have been recorded with that setting (i tried to introduce some motion blur back in in a couple of clips as well and it might even work, i just need to understand how much of it to use) - The camera doesn't seem to record any Gyro data if the lens stabilisation is ON (i'm not entirely sure about this but certainly the option to select the Gyro stabilisation doesn't appear inside Resolve on the clips shot with OIS) so you have to remember switching off the lens stabilisation if you plan to use the gyro. I reckon it kind of make sense though because without knowing the data from the lens gyro the result would probably be a bit messy πŸ˜… - I have noticed some strange sharpening artifacts in high details area when a clip has been stabilised using gyro but thankfully it seems to only affect the GUI and not the monitor output nor the final render (I'm on Windows 10) - The results are overall very good, in shots with simple moves there isn't a great deal of difference between the gyro and the algorithm based stabilisation (the building tilt shot and the cushions shot for istance) but in other shots where there are more complex movements and lots of geometric elements that can (and did) wreak havoc on the traditional stabilisation methods the difference is day and night. I would not suggest this is a gimbal replacement by any means because is not but it's definitely a feature that will enable camera movents that are most probably not possible in any other way when you don't have or want to use a gimbal so it's quite exciting! ps. on the clips where there is severe warping from the perspective stabilisation i tried to use the clips without OIS as well to see if it would fare any better but it made very little difference, it was unusable anyway.
  6. Made a quick and dirty test today with my BMPCC6K and the new 7.9 software. First clip is shot on a Canon EF 50mm 1.8 (so no OIS and 75mm equivalent) Second clip is shot on a Canon EF 24-105 f4 @ 24mm (36mm equivalent) Overall the new stabilisation works very well especially in situations where the traditional point based stabilisation can create visible warping (i included samples of that as well for comparison) Things to note: - The workflow is fantastic and probably the real advantage of this over any other gyro stabilisation solution.. it's just a new option in the stabilisation panel in Resolve, no extra software and rendering needed! - Like any other gyro stabilisation system nothing can be done to reduce motion blur so, unless you have a miniscule quantity of motion in your shot, you need to shoot with faster shutter speed. I found 45ΒΊ to work the best (apart from the weird look due to the lack of motion blur, i'm experimenting in dialling that back in afterwards and see how it looks) - Another potential issue with gyro stabilisation is rolling shutter but, according to blackmagic, it's automatically compensated in the algorithm and it doesn't seem to be a big issue (even if the 6K is not the fastest camera around rolling shutter wise). Much more experiments needed but i wanted to share with you my first findings, this is a very exciting development!
  7. This is exactly what I was thinking! I mean.. pretty much every camera that I've ever used equipped with IBIS has a sensor cleaning mode that does just that.. it locks the sensor in a neutral position so you can clean it easily without it moving all over the place. Surely it'll never be as strong as a sensor which is permanently held in place but those magnets are a lot stronger than I thought so I'm wondering why one couldn't shoot with the sensor in that mode. Of course I'm saying this purely as an end user without any knowledge of the engineering behind it so it's entirely possible there are very good reasons why this can't work πŸ˜…
  8. Yesterday Gerald Undone was doing some testing on the 4K HQ mode recorded externally on a Ninja and the camera shut down due to overheating around the 1h15 mark so I think that estimate is very realistic πŸ™‚ https://instagram.com/stories/geraldundone/2359898914668645546?igshid=ukiotjsceety
  9. I've seen the video and the high gain situation it's interesting but I'm pretty sure on a static scene it's pretty impossible to have the encoder drop to 2:1 compression. In my tests on static subjects the average datarate i got out of Q0 is never more than 3:1 so around 540Mb/s which is close to the limit of the best CFast cards and SSD but still doable so my question about the lowest compression ratio Q0 is capable of still stands.. Probably the camera will never go lower than that in 50fps otherwise dropped frames are inevitable...
  10. I was doing some research into which media to buy for my BMPCC6K and during the intense spreadsheet action something caught my attention.. How do you record Q0 in 6K at 50fps? According to my calculations in the worst case scenario (so less amount of compression which amounts to roughly 2:1 in Q0) the camera generates data in excess of 800MB/s which is way beyond the capabilities of any of the supported media, am i missing something? (not that I have any intention of recording slowmo in Q0 at 6K anytime soon, it was more of a curiosity really) ?
  11. Complete madness! ? I just spent the weekend filming with the BMPCC6K and like many other have already said there's simply nothing that comes even closer to the IQ that camera produces for the price, nothing! I think the other companies seriously need to step up their video game and this is definitely NOT the way to do that... ?‍♂️
  12. Finally after 10 days or so some proper awesome footage, looove the anamorphic mode! ? https://www.youtube.com/watch?v=52Pto5QImes Quick question re anamorphic modes.. does anybody know why the windowed 3.7k mode on the 6K rather than a straight 6:5 crop from full (i think that would be around 4.1K)? Could it be a limitation of the sensor? Also.. on the BMPCC4K Grant talked about a 4:3 mode, being the sensor not in a 4:3 aspect ratio like the GH5S i guess it's just gonna be a straight crop from full (so around 2.8K), does this make sense? ?
  13. I might be wrong but as far as i can see in the specs on BM's website i don't see any windowed 4K mode, only ProRes (downscaled from full resolution i suppose) so if you want to shoot BRAW it looks like 4K is not an option...
  14. The reason why 1080p is not windowed on the P6K is because it only records that mode in ProRes (along with both 4K flavours as well) therefore it captures the full sensor and then downscales it whereas the P4K can do both, BRAW windowed or ProRes downscaled.
  • Create New...