They are definitely designed to be used as part of a grade, not a substitute for one. What I find particularly interesting is that rather than the very full-on, “pushed” look that we might associate with LUT-grades, some of the ImpulZ LUTs can have very subtle effects, depending on what you present them with. They haven’t been able to reproduce the crash so it could be something very specific to my set-up. Vision Color support have been really responsive. The only issue I’ve run into is the “color implosion” LUT makes FCPX crash. That way you can put the colour correction before the LUT Utility effect. An alternative to this compound-clip-nesting technique is to use a third-party colour correction tool (or one you’ve made yourself in Motion 5) which sits in the Effects slot. Of course this isn’t as flexible as DaVinci Resolve’s “node” system, but it does allow you to build up more complex grades. You can do a post-LUT secondary correction if you wish, by using the colour board in the compound clip (or the adjustment layer).įor some shots however, the LUT brings out a colour response that wouldn’t otherwise be possible.The colour correction you did in step 1 is applied before the LUT Apply LUT Utility to the compound clip (or the adjustment layer).With compound clips on the other hand, the Viewer only shows the results of that layer, and you have to exit the clip to see the finished result. The advantage of this method is that as you’re doing your pre-LUT correction, in the Viewer you can see what the result will look like post-LUT. EDIT: On the EOSHD forum, sudopera came up with a better idea: instead of a compound clip, use an adjustment layer, such as the one provided by Ripple Training. Nest the clip(s) in question inside a compound clip (keyboard shortcut: Alt-G).Use the colour board to correct the clip.In Final Cut Pro X you can’t put a colour-board correction before an effect. Here’s how to get round this: 1 If a clip definitely needs a colour “correction”, if the white balance or exposure is way off for example, I do that before I apply the LUT. ![]() To use LUTs in Final Cut Pro X you’ll need LUT Utility. So far I’ve just done relatively simple grades with the LUTs. ![]() Kodak Elite Chrome 200 detail Using LUTs in Final Cut Pro X GH4 users who don’t like the Cinelike D profile should definitely explore shooting with a natural profile and just using the generic Rec.709 LUTs. I’d be really interested in hearing how other people get on this. I’m still experimenting with the settings, but, depending on the conditions, I have sharpness, contrast, and noise reduction on -2, ie just turned down enough to get the dynamic range I need and minimise aliasing. In other words, when shooting use as much of the camera’s 8-bit colour space as you can, don’t shoot -5 -5 -5 -5 super-flat. In my limited testing so far, the Rec.709 LUTs seem to work best with a relatively full gamut of colour. ![]() You can painlessly incorporate the LUTs into your grade without having to worry about everything becoming blown and crushed. The problems I described above of trying to simulate a log colour-profile before you apply the LUT are absent with ImpulZ. I was a little disappointed at first that they don’t directly support older Panasonic cameras, the GH3, G6 and so on, but actually ImpulZ’s generic Rec.709 profiles work really well with G6 footage. They support cameras with flat shooting profiles (ie the GH4’s Cinelike D), including 3rd party profiles (such as Similaar’s Flaat profiles for Nikon cameras). What interested me here was that as well as the RAW-shooting Black Magic cameras of this world, Vision Color also provide sets of LUTs specifically geared towards plain old 8-bit colour-space H.264 video. Although I had some success with this latter method (Juan does stress that it is experimental), it was still difficult to get consistent results.Įnter Vision Color’s ImpulZ LUTs. ![]() I tried various techniques for making the G6 emulate a logarithmic colour space: putting all the picture profile settings to -5, raising the gamma and lowering the contrast in post, as well as Juan Melara’s video-gamma-to-log LUT, which you apply before the film stock LUT. The results would be very aggressive and pushed, over-saturated and contrasty to the point of solarisation. Using these LUTs with the G6 footage was tough. The problem has been that many of the film stock LUTs that are available online or come bundled with software like DaVinci Resolve assume that you are shooting with a camera that has a 10, 12-bit or RAW colour space, or else a logarithmic (log) recording format. I’ve been experimenting with using film stock emulation LUTs (look-up tables) with footage shot on my Panasonic G6.
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