Film Preservation vs Conversion: The Difference, Documented

If you’ve never thought hard about the distinction, you’re not alone. The film digitization industry doesn’t want you to. Most services use “film transfer,” “digitization,” and “preservation” interchangeably — because the words that sound most impressive cost the least to deliver.

But the distinction is real, it’s technical, and it shows. A film conversion service exists to turn your film into a video file you can watch. A preservation lab exists to create a digital master that will still be authoritative in fifty years. Both will send you something you can play on your TV. Only one is protecting the archive.

This page lays out the difference at every step: the equipment, the process, the deliverables, and the decision framework for which one is right for your film.

01 / Two models

One category. Two approaches.

The consumer digitization industry runs on one approach. Preservation labs run on another. Both scan film. Only one treats film as an artifact.

Model A

Conversion service

A service that turns your film into a video file. Optimized for volume, throughput, and price. Film is an input; video is the output.

—
Projector-to-camera transferA film projector runs the reel; a video camera records the projected image. What you get is a video of film, not a scan of film.
—
Standard-definition or compressed HD outputMP4 at 1080p or lower, H.264 codec, heavy compression. No master file. No archival record.
—
Sprocketed transportFilm is pulled through the gate by its sprocket holes. Shrunken or brittle film tears or jams — and is often rejected.
—
No condition reportNo record of what you sent, what state it was in, or what happened during scanning.
—
Bulk, mail-in, warehousedOften routed through regional hubs or overseas processors. Turnaround of 10 — 12 weeks common.

Model B

Preservation lab

A lab that creates an archival digital master of your film — suitable for family viewing today and as the authoritative record in fifty years.

✓
Frame-by-frame captureEach frame photographed individually by a dedicated sensor. No projector. No moving camera. Every frame gets full resolution.
✓
2K, 4K, or 8K scans with 16-bit depthProRes 422 HQ or DPX masters. Archival by design. The file is the record.
✓
Sprocketless transportFilm is held by its edges, never pulled by sprockets. Vinegar syndrome, shrinkage, and damage are handled safely.
✓
Condition report on every orderEvery reel inspected, logged, barcoded. You get a written report of what we found and what we did.
✓
In-house workflow, no outsourcingYour film never leaves the lab. 3 — 5 week turnaround. You see status updates at every step.

02 / How each works

The same film. Two physical processes.

These aren't opinions. They're the physical steps each model uses. The equipment and technique determine what's possible — nothing else does.

Conversion service

Projector-to-camera transfer

A film projector displays the reel; a video camera records the projected image. Video is captured in real time. Any frame damage, flicker, or projector imperfection is baked into the recording.

01Load reelOnto projector gate

02ProjectLight through film onto screen/mirror

03Camera capturesVideo recording of projected image

04EncodeCompressed H.264 MP4

Preservation lab

Frame-by-frame sprocketless scan

Film is transported one frame at a time through a purpose-built scanner. A dedicated LED light source illuminates each frame; a high-resolution sensor captures it. No projection. No motion blur. Each frame gets the sensor's full resolution.

01Load reelOnto sprocketless transport

02Advance one frameHold flat in scanner gate

03Capture frame16-bit RAW at 2K/4K

04Color-manageProRes / DPX master + access copy

The word “transfer” gets used for both. That’s how the industry blurs the line. But the physical differences — a projector versus a scanner, continuous motion versus frame-holding, video encoding versus RAW capture — produce two genuinely different outputs. You cannot start from a projected-image video and reconstruct what a scanner would have captured.

03 / What you get

Two orders. Two packages.

Place the same order with both models and you receive materially different deliverables. Here's the direct comparison, spec by spec.

Specification	Conversion	Preservation
Capture method	Projector → camera	Frame-by-frame sensor
Resolution	480p — 1080p	2K — 8K
Color depth	8-bit	16-bit RAW
Master file	✕ None	✓ ProRes / DPX
Access copy	H.264 MP4 (compressed)	H.264 MP4 (access)
Color correction	Automated, global	Scene-by-scene
Film cleaning	Wipe, if any	Hand cleaning + new reels
Condition report	✕ None	✓ Per reel
Chain of custody	✕ None	✓ Full (institutional)
Damaged film handling	Often rejected	Sprocketless scan
Turnaround	10 — 12 weeks	3 — 5 weeks
Original film returned	Sometimes	✓ Always, same condition

Comparison reflects standard consumer conversion services and the Preservation tier at FPL. Specifics vary by provider.

04 / Damaged film

When your film isn’t pristine.

This is where the difference stops being about quality and starts being about whether your film gets scanned at all. Conversion services reject damaged film because their equipment can't handle it. Preservation labs are built for it.

Damaged film showing vinegar syndrome and shrinkage

Film deteriorates. The question is what happens when it does.

A sprocket-driven projector pulls film through a gate using the sprocket holes. If the holes are torn, the sprockets shrunk unevenly, or the film brittle, the projector jams — or worse, tears. Conversion services protect their equipment by rejecting anything that looks risky.

Sprocketless transport holds film by its edges. It never pulls on the sprocket holes at all. That means film with vinegar syndrome, shrinkage up to 1.5%, and frame damage still scans cleanly. Customers sometimes send us film that’s been rejected elsewhere — and we scan it.

01
Vinegar Syndrome
Acetate film decomposing, releasing the distinctive smell. Advanced cases shrink the film unpredictably. Sprocketless transport handles it safely until the film becomes too brittle to run at all.
02
Shrinkage
Film contracts over decades. Sprocket holes no longer align with projector teeth. A sprocket-driven system jams. Sprocketless captures it reel-end to reel-end.
03
Splice Damage
Old splices fail over time. Torn sprocket holes from decades of projector use. Edge damage. All handled; nothing skipped.
04
Color Fade
Ektachrome in particular fades magenta; most home-movie film loses density. Preservation scanning captures what’s still there — then scene-by-scene color correction recovers what can be recovered.

Full deterioration guide

05 / The institutional standard

FADGI: a standard for what “archival” means.

FADGI \u2014 the Federal Agencies Digital Guidelines Initiative \u2014 is the U.S. government\u2019s spec for how cultural institutions should digitize their collections. It\u2019s what separates "it looks good" from "it meets a verifiable standard."

FADGI defines four compliance tiers (1 to 4 stars) based on resolution, color accuracy, and bit depth. Institutions applying for IMLS, NEH, or NHPRC grant funding typically require their digitization vendor to meet a specific FADGI tier.

Consumer conversion services don’t meet any FADGI tier. They can’t — a projector-to-camera transfer can’t produce the resolution or color fidelity the spec requires.

A preservation lab’s Preservation tier typically meets FADGI 3-star. Archival tier meets FADGI 4-star with proper documentation.

Institutional service details

★
FADGI 1-starBasic digitization. Access copy only.
Baseline
★★
FADGI 2-starStandard digitization. Above consumer grade.
Internal use
★★★
FADGI 3-starPreservation-grade. Suitable for archival masters.
Grant-ready
★★★★
FADGI 4-starHighest compliance. Full color-managed DPX.
Federal archive

06 / Which to choose

Honest about the tradeoff.

Not everyone needs a 4K archival master. Some film should just be watchable. Here's how to decide — written for you, not for us.

Tier 1

Access

You want to watch your film on a TV. You’re not the one who’ll re-archive it in 20 years. Frame-by-frame quality at a price close to conversion.

2K scan
H.264 MP4 delivery
Standard cleaning
Basic color correction
$0.42 / ft (8mm / S8)

Explore Access

Most chosenTier 2

Preservation

Your film is irreplaceable. You want a master file that will last. Most customers choose this — and the tier most worth defending against future format changes.

2K scan (2048 × 1556)
ProRes 422 HQ master + H.264
Hand cleaning + new reels
Scene-by-scene color
Condition report
$0.98 / ft (8mm / S8)

Explore Preservation

Tier 3

Archival

You’re an institution, a filmmaker, or an estate. You need FADGI 4-star output, DPX masters, and full documentation. The spec that unlocks grant funding.

4K — 8K scan
DPX or 16-bit TIFF + ProRes 4444
Hand cleaning + archival reels
Full color-managed grade
FADGI compliance available
$1.65 / ft (8mm / S8)

Explore Archival

Here’s the honest version: if you’re choosing between a $40 conversion service and our Access tier, go with Access. Frame-by-frame at 2K beats projector transfer at 1080p, every time. If you’re choosing between Access and Preservation, choose Preservation if the film matters and you won’t be re-scanning in a decade. Archival is for institutional work, professional projects, and estates where provenance and FADGI compliance are non-negotiable.

Most services convert film into video. A preservation lab treats the film as the artifact and the scan as the record. That distinction is the entire difference between footage you can watch and a master you can archive.

— The FPL Manifesto