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Showing content with the highest reputation on 04/27/2024 in all areas

  1. I'm still lost down this rabbit hole, but these are an interesting reference. This is what happens if you put the GX85 through a "look". I put the GX85 test image through a bunch of output LUTs to see which (if any) I liked the flavour of. In order to compare them equally, I adjusted after the LUT to match the black and white points, exposure, and contrast. This way we're not just comparing the different contrast curves, but the other aspects of the LUTs like colour rendering etc. The node structure was this: slightly lower gain to bring GX85 image into range (it records super-whites) CST from 709/2.4 to Davinci Intermediate (my preferred working colour space) (my grade would go here, but for this test no adjustments were made) CST to whatever colour space the LUT expects The LUT (these all convert to 709/2.4) A curve to adjust the overall levels from the LUT to roughly approximate the GX85 image The round-trip from 709/2.4 to DWG to 709/2.4 is almost transparent, if you compensate for the gamut and saturation compression in the conversion at the end, so I didn't bother to grab it. Results: The famous ARRI K1S1 LUT (the ARRI factory LUT): One of the 5000 BMD LUTs that come with Resolve, which I tried just for fun: The Kodak 2383 PFE (Print Film Emulation) LUT. The D55 one seemed the closest match to the WB of the image for some reason, but everyone always uses the D65 ones, so I've included both here for comparison. The D65 one: The Kodak 2393 PFE. It doesn't come with Resolve but it's free online from a bunch of places. I like it because it doesn't tint the shadows as blue, so the image isn't as muddy / drab. The FujiFilm 3513 PFE: I find the ARRI LUT a bit weak - it helps but not as much as I'd like. The comparison above is flattering to the LUT because it has a bit more contrast compared to the SOOC so looks a bit better. The skintones are a little more flattering on it though, which might be enough if you want a more neutral look. All the PFE looks are very strong, and aren't really meant to be used on their own. The film manufacturers designed the colour science to look good when used with a negative film like Kodak 250D or 500T stocks, so it's "wrong" to use it unless you're grading a film scan, I think people use it like this anyway 🙂 Some time ago I purchased a power-grade that emulated both the 250D and 2393 PFE from Juan Melara, which looks like this: To me it looks much more normal than just the 2393 PFE on its own, but it's definitely a stronger look. The powergrade is split into nodes that emulate the 250D separately to the 2393, and the 2393 nodes are almost indistinguishable from the LUT, so I'd imagine this is probably a good emulation. Anyway, lots of flexibility in these 8-bit files!
    2 points
  2. I think I found the lens! It's the Angenieux Zoom 15x10B 10-150mm f/2-2.8 lens. This lens has "TYPE 15 x 10B" written on it and a red pinstripe around it.
    2 points
  3. It's possible to synthesize all sorts of microphone types/polar patterns, including things like perfectly co-incident stereo pair mics (which are impossible to physically build), from a B-format Ambisonics stream/recording - https://en.wikipedia.org/wiki/Ambisonics#Virtual_microphones - and also produce a binaural stream - https://en.wikipedia.org/wiki/Ambisonics#Decoding I think that post-processing flexibility is the real strength of using a Soundfield microphone for ambient sound recording.
    1 point
  4. I did a first impressions thing here when I got my H3-VR. It has examples of the auto down mixed binaural output for general city ambience and you can download the original ambisonic files to see the extent of the steering that you can do with them in post if you every wanted to. I think it obviously punches above its weight and even in binaural mode it does add more pickup width outside of the visible frame as well as a certain degree of rear and height cues so for 180 video I think it might do the trick for what you are after without having to do anything in post. The step up would be the Rode Soundfield mic paired with something like the Zoom F6 or even the new H6 Essential but, obviously, you will then need a more elaborate rig versus the diminutive H3VR and, of course, with no down mix you'd have to do that in post.
    1 point
  5. If you're in the PC world, you're definitely better off editing on desktop vs laptop if you're working with high-res footage or doing effects, etc. Most laptops throttle down a lot when not plugged in and (in my experience) make a jet engine noise when dealing with a prolonged load on CPU/GPU. And as ac6000cw says, the mobile GPU's are almost always lesser versions of their desktop counterparts. Also when on battery, life tends to be very short because CPU/GPU pull a lot of power. My M2 Max, on the other hand, can handle 8k Canon raw acceptably - and I got the weaker variant of it. Performance is almost the same whether plugged in or on battery. Fans do ramp up when working it hard (now that I've added denoising to most of the scenes that need it, the 14-minute short I'm currently working on/grading definitely has the fans running full blast when I run an export). Basically, in absolute performance numbers a high-end PC desktop will beat any Mac currently on the market and at a fraction of the cost of a Mac Studio ($3k for a decent Ryzen + RTX 4090!). A top-of-the-line PC laptop plugged into the wall will also outperform the MBP in absolute numbers (except whoooooosh fan noise)... but if you want to actually be mobile, the Mac is the hands-down winner.
    1 point
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