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Multispectral analysis

Invisible layers · erased writing · authenticity

With the Phase One Rainbow multispectral system we reveal information that is invisible to the human eye. Using a filter wheel, the system takes a sequence of images one after another, from ultraviolet to infrared, in a few minutes.

We use it for research and industrial tasks, working with universities, research institutions and our partners.

An enlarged detail of a charter on a monitor, showing the trace of a scraped-off name

What it is for

  • Erased, scraped-off writing

    Recovering scratched-out names and deleted entries.

  • Overwritten text

    Separating later corrections and layers.

  • Authenticity analysis

    Examining the authenticity of documents and artworks.

  • Forensics

    Examination of traces, fingerprints and evidence.

References

What we have already done

How we work

From test capture to archive

  1. 01

    Test capture

    “A test capture is worth more than the most eloquent specification.” The work starts with a sample capture of your own material, which shows what equipment and settings are needed.

  2. 02

    In the studio or on site

    We work in our studio on Reitter Ferenc utca, and we set up wherever the collection is: in the off-site store of the Ráday Collection, at the Otto von Habsburg Foundation or at the Batthyaneum Library (a branch of the National Library of Romania) in Alba Iulia.

  3. 03

    Capture under conservation rules

    We adapt the conditions to the object. According to the manufacturer, multispectral capture is a contact-free, non-destructive process using low-energy LED lighting.

  4. 04

    Delivery and publication

    We deliver the images in the format the client requires. On request, we also publish them in searchable form in our own archive system, the Heritage digital archive.

Equipment

Request a quote

Tell us what kind of material it is and how much of it there is. We start with a test capture.

Request a quote →