Canon 1Ds Mark III Video Recording: Pro Body, USB LiveView Capture

Quick Answer: Yes — the 1Ds Mark III is on EOS Camera Movie Record’s official supported-camera list, and its full-frame LiveView gives you a tethered video feed despite the camera having no movie mode. Expect the top-tier LiveView stream class (documented at 1024×680 for the 40D/50D and the top models), captured as silent MJPEG at roughly 20 fps. The workflow is the same USB tethering as the 450D guides — the differences are pro-body details: LP-E4 power, full-frame field of view, and studio discipline you already have.

Why this page exists

Every video guide for old Canons is written for Rebels. But the 1Ds Mark III — Canon’s 2007 full-frame flagship — has LiveView and sits on EOS Camera Movie Record’s official supported list, which makes it the most capable stills-only Canon that can do tethered video. If you own one (or you’re eyeing a cheap used one as a studio body), this is the honest briefing: what works, what the files look like, and where the pro workflow differs from the Rebel guides.

What works: LiveView over USB, no movie mode needed

The mechanism is identical to the 450D workflow: enable LiveView, connect USB, and EOS Camera Movie Record captures the sensor feed to your PC as an MJPEG AVI — silent, at roughly 20 frames per second. The 1Ds Mark III never had a movie mode and never will; the tethered feed is the video mode it always had. Frame it that way and the camera stops feeling limited.

Resolution and file reality

The software’s documentation lists 1024×680 for the 40D/50D and the top-model tier, which includes the 1Ds Mark III — the largest LiveView capture class the software offers, roughly double the pixels of a Rebel XSi feed. Files are correspondingly large MJPEG AVIs: plan on gigabytes per session and compress to H.264 MP4 for delivery, exactly as in our YouTube workflow guide. Judge the footage for what it is — clean, full-frame, honest pixels — not against modern 4K.

Pro-body differences that matter

  • Power: the LP-E4 is a big battery, but tethered LiveView still drains it — disable Auto Power Off and use the AC adapter for studio days.
  • Field of view: full-frame LiveView means your lenses behave as marked — a 50mm is actually 50mm, and wide angles are wide again. Re-frame your expectations if you’re coming from APS-C guides.
  • Heat: a full-frame sensor in LiveView generates real heat on long takes; give the body airflow and avoid enclosing it.
  • Discipline: manual exposure, locked white balance, manual focus — you already shoot this way; the tethered video workflow just rewards it.

Where a 1Ds III video feed earns its keep

Studio product and macro work (tethered to a big screen, focus checked at 10x), art reproduction, overhead process documentation, and multi-camera interview angles where the full-frame look matters. It won’t replace a cinema camera — but as a second life for a body you already own, it’s remarkable how much video is hiding in a “stills-only” flagship.

FAQ

Is the 1Ds Mark III officially supported by EOS Camera Movie Record?

Yes — it appears on the software’s official supported-camera list (alongside the 450D, 1000D, 40D, 50D, and 5D Mark II). Support means the software recognizes the body and captures its LiveView feed; the workflow is the same USB tethering as the Rebel guides.

What resolution video does the 1Ds Mark III capture?

The software documents 1024×680 for the 40D/50D and top-model tier, which includes the 1Ds Mark III — the largest capture class it offers. That’s the LiveView feed size, not a movie-mode recording; expect clean standard-definition-plus footage, silent MJPEG.

Does the 1Ds Mark III have a movie mode?

No — it never had one. The tethered LiveView capture described here is the only video the camera can produce. Think of it as the video mode Canon didn’t ship, unlocked over USB.

Can I record audio with it?

Not through the camera/software chain — the captured AVI is silent. Record audio separately (portable recorder or USB mic into the PC) and sync with a clap, the same dual-system workflow as every other body on this site.

Will long LiveView sessions overheat the camera?

The full-frame sensor does warm up in extended LiveView; in normal studio conditions with airflow it runs for hours. Avoid enclosing the body, take breaks on very long takes, and watch for the heat warning — the same care you’d give any LiveView-heavy session.

Is a used 1Ds Mark III worth buying just for this?

Only if you also want a full-frame stills flagship — as a video-only purchase, a used 450D does the same tethered trick for far less. Buy the 1Ds III for the stills camera it is, and treat the video capability as a serious bonus.