FilmConvert Nitrate Alternative: Leumos AI Compared | Leumos AI

The best FilmConvert Nitrate alternative depends on what you're actually trying to solve. FilmConvert Nitrate ($139-$199 one-time) is a plugin-based film emulation tool with real 6K grain scans — it lives inside your NLE. Leumos AI is a browser-based grading tool launching in ~30 days with AI shot matching across multi-cam footage, something FilmConvert was never designed to do.

I'm Pravit. I'm a DaVinci-certified colourist, I went to film school for cinematography, and I've graded ad spots for Puma and WHSmith, indie features that hit festivals, and more music videos than I can count. I've owned FilmConvert across two NLEs. The grain is genuinely beautiful. But I got tired of finishing a wedding or a two-camera music video and realising the film stock didn't fix the fact that my A-cam FX3 and B-cam BMPCC 6K were living on different planets. That's the problem I'm building Leumos AI to solve.

Where FilmConvert Nitrate wins

Let me be honest about this before anything else. FilmConvert's grain is the real thing. Rubber Monkey Software scanned actual film stocks at 6K — Kodak 5219, Fuji 8543, the Cineon scans — and the result is a texture that most digital "film looks" can't touch. If you grade a Sony FX3 S-Log3 file through FilmConvert's KD 5219 stock with the grain dialled in, it has a weight to it. It sits in the gutter of the image properly. Plugin LUTs don't do that.

The pricing model is also genuinely friendly. $139-$199 once, per platform, and you own it. No subscription bleed. For a wedding videographer cutting 30 weddings a year on a fixed Premiere setup, that math is unbeatable.

It also slots into the NLE you already live in — Resolve, Premiere, FCP, After Effects, Vegas. You don't change workflow. You drop FilmConvert on the clip, pick a camera profile, pick a film stock, and you're rolling. For a one-camera indie short on RED Komodo where every shot was lit consistently, this is a perfectly clean answer.

FilmConvert is what it claims to be: the best film emulation plugin on the market. I'm not arguing that.

The FilmConvert trade-off most filmmakers run into

Here's where it gets thorny. FilmConvert is a look tool, not a matching tool. It assumes your shots already match each other and you just want to put a film stock on top.

Real indie shoots almost never look like that. I shot a music video last year — A-cam Alexa Mini in LogC3, B-cam FX3 in S-Log3, a GoPro 11 for one driving insert. Three log curves. Three colour sciences. Three different sensor responses to the tungsten practicals on the wall. When I dropped FilmConvert's KD 5213 stock onto the timeline as an adjustment layer, the GoPro went magenta, the FX3 looked greener than the Alexa, and the Alexa looked correct. The film stock didn't unify the shots — it just sat on top of three already-mismatched images and made the mismatch more visible, because now the grain structure was identical but the colour wasn't.

Which means before you can use FilmConvert properly on a multi-cam project, you have to do the equalization pass yourself. Wheels, curves, hue-vs-sat, manually neutralising each B-cam shot until it lives in the same world as your A-cam. On a 6-minute music video with 40 cuts and 3 cameras, that's an honest 90 minutes to two hours of node soup before you even get to the creative grade.

For a working filmmaker on a deadline, that's where the day goes.

Leumos AI launches in ~30 days. The first 500 signups get 50% off the first year — join the early-access list.

How Leumos AI handles this differently

Leumos AI is built around the equalization problem first, the look second. It runs entirely in the browser — no plugin install, no NLE dependency, no "which version of Premiere am I on this month" headache.

The core workflow I'm building it around: upload your footage (up to 2GB on Pro), and the AI Scene Cut Detection breaks it into shots automatically. If it misses one — handheld push-in, slow lighting change — the Manual Cut Tool lets you fix it in a click. From there you can either pull a still from your A-cam Alexa shot and use Reference Image Grading to drag every other shot toward that reference, or hit Match All and let the AI equalize the entire sequence in one pass. That's the step FilmConvert structurally cannot do, because it's a per-clip plugin with no awareness of the shots around it.

Once the shots are talking to each other, the creative grade goes on top. The Preset LUT Library gives you film-style and stylised looks to start from. Input Color Space LUT handles the log curve correctly per camera — S-Log3, C-Log3, V-Log, LogC3, BRAW gamma. And Manual Primaries gives you wheels and exposure controls when the AI gets you 90% of the way and you need to finish it by eye.

The honest version: Leumos won't replace FilmConvert's grain texture on day one. Real 6K-scanned grain is a different category of product. What Leumos will do is collapse the 90-minute equalization pass into something closer to 10 minutes, so the creative grade — whether that's a FilmConvert stock back in your NLE, or a Leumos preset, or a Resolve project — starts from shots that already match.

Which one should YOU pick?

Be honest about your footage before you spend the money.

• Single-camera, consistent lighting, just need a film look on top — FilmConvert wins. The grain is unmatched and the one-time price is hard to argue with.
• Multi-camera shoots, mismatched bodies (FX3 + BMPCC, Alexa + Komodo, A7S + GoPro) — Leumos wins on the equalization pass. FilmConvert doesn't do shot matching.
• You live inside Premiere or FCP and refuse to leave your NLE — FilmConvert wins. It's a plugin; Leumos is browser-based and exports the graded file back to your timeline.
• You want zero install, working from a laptop, hotel room, or borrowed machine — Leumos wins. Nothing to install, nothing to license-transfer.
• Subscription-averse, cutting one project a quarter — FilmConvert's one-time pricing is more economical long-term.
• High-volume work, wedding-and-events pipeline, need to turn jobs around in a day — Leumos's Match All saves the equalization hours; FilmConvert's grain finishes the look.

For most working filmmakers, this isn't an either/or. The honest answer is they solve different problems and they sit at different stages of the same grade.

Price comparison

FilmConvert Nitrate is a one-time purchase per host platform: $139 for a single host (Premiere, FCP, Resolve, etc.), or roughly $199 for the bundled multi-host license. No recurring cost, no cloud, no upload limits — you own the plugin.

Leumos AI runs as a browser tool with three tiers. Free is $0 with 2 uploads per day and a 400MB per-file cap. Creator is $15/month with 8 uploads per day, a 1GB per-file cap, and 14-day cloud storage. Pro is $39/month with 20 uploads per day, a 2GB per-file cap, and 30-day storage. The first 500 early-access signups get 50% off the first year, which lands Creator at $7.50/month and Pro at $19.50/month for that window.

If you cut multi-cam regularly, even one project a month makes Pro pay for itself in time saved on equalization. If you're a single-camera narrative shooter, FilmConvert's one-time spend is the cleaner long-term call.

Frequently asked questions

Can Leumos AI replace FilmConvert Nitrate entirely?

Not on day one, and I won't pretend otherwise. FilmConvert's 6K-scanned film grain is a category of product Leumos isn't trying to compete with at launch. What Leumos will replace is the manual equalization pass that has to happen before you can use FilmConvert cleanly on multi-camera footage. Many filmmakers will end up using both — Leumos in the browser to match shots, then FilmConvert in their NLE to add the grain on top. They solve different parts of the same grade.

Does FilmConvert do shot matching between cameras?

No, and this is the structural limitation people run into. FilmConvert is a per-clip plugin that applies a camera profile and a film stock to one piece of footage at a time. It has no awareness of the shots around it, so it can't equalize an A-cam Alexa shot to a B-cam FX3 shot to a C-cam GoPro insert. You have to do that work yourself with wheels and curves in your NLE before FilmConvert can give you a consistent result across the timeline.

Why build Leumos in the browser instead of as a plugin?

Three reasons. First, install footprint — no version-locking to specific NLE releases, no "my Premiere update broke the plugin" emails. Second, machine-agnostic — you can grade on a borrowed laptop, a hotel room iPad in the future, anywhere with a browser. Third, AI compute. Match All needs real model inference, and running that locally would tank performance on the M1 Airs and mid-range PCs a lot of indie filmmakers actually own. Browser-based keeps the heavy lifting off the user's machine.

What codecs and log formats will Leumos AI support at launch?

At launch Leumos will handle the formats working filmmakers actually shoot — ProRes (including ProRes RAW), H.264, H.265, and the major log gammas through Input Color Space LUT: Sony S-Log3, Canon C-Log3, Panasonic V-Log, ARRI LogC3, and BRAW gamma. The 2GB upload ceiling on Pro is sized for typical scene-length clips at ProRes 422 HQ. Larger raw camera-original BRAW or R3D files should be transcoded to ProRes first, which is the workflow most colourists already use anyway.

When does Leumos AI launch and how do I get early access?

Leumos AI launches in roughly 30 days from now. The current site is a coming-soon page with an early-access form. The first 500 signups lock in 50% off the first year of either Creator ($7.50/month instead of $15) or Pro ($19.50/month instead of $39). Early-access users also get first look at the MVP build — Upload, AI Scene Cut Detection, Reference Image Grading, Match All, Preset LUTs, Input Color Space LUT, Manual Primaries, Manual Cut Tool, and Export — before public launch.

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Leumos AI launching in ~30 days. The first 500 signups get 50% off the first year. Join the early-access list →