Regula 4308
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Regula 4308

The Regula 4308 is an advanced second line forensic spectral comparator with over 30 integrated light sources, hyperspectral imaging and dual integrated cameras for forensic level examination of questionned documents.

The device is made as a single unit for desktop use. It is used with a built-in PC (may be connected to an external PC via USB 3.0) and fully controlled through "Regula Forensic Studio" software interface (supplied with a unit). The device is equipped with a high resolution spectrometer, hyperspectral imaging module, light source for anti-Stokes luminescence, XY translation stage, modules for reading MRZ, RFID chips, hidden image (IPI), 1D and 2D barcodes.

Best in class

Being the best in class for advanced document examination, Regula 4308 has been developed and produced with the use of the latest hi-tech innovations.

Its high functionality is achieved due to over 30 types of light sources, over 20 light filters, a self-developed precision optical system and 2 high-resolution cameras.

Technical innovations

The comparator allows working with large format documents. Due to side flaps and widened internal space examined objects can be conveniently placed inside.

The extended field of view and updated algorithms of image stitching make it easy to obtain the whole image of an A4 page.

A unique motorized system of oblique lighting, which allows changing the light source angle of incidence, provides a wide range of opportunities for examining microrelief of a document in the visible and infrared spectrum range.

Advanced algorithms of image capture

Advanced system for capturing high-resolution images preserves all tiny elements precious for further object examination.

New algorithms and the enhanced optical scheme make it possible to obtain a multi-focus image in one click. Such an image takes on a new level of detail as the whole frame turns out to be in focus independent of the size of its relief.


Regula Forensic Studio software is a key to outstanding performance of Regula 4308. It forms a duet of personal computer and the comparator and creates a laboratory for forensic examination. Efficient and intuitive interface of the software helps the user easily operate the device and manage obtained data.

Extended functionality of Regula Forensic Studio offers an extraordinary experience to those who are involved in security document analysis. Now it is possible to build a 3D-model of a document fragment. And this is what makes the difference when examining overlapping objects such as a signature and a stamp or a signature and some text.

In addition, it is worth taking advantage of the information reference system "Secure Documents Ultimate" which provides access to images and descriptions of documents and banknotes from all over the world. During the device lifetime, Regula Forensic Studio software is updated free of charge.



  • Examinations under high magnification on different levels:
    • protection of the document basis
      • paper opacity, watermarks, security fibers, planchettes, security threads, foil stamping, pole feature, all types of windows, transparent varnish coating, shadow images, etc.
    • printing methods
      • ‌intaglio: texts, guilloche frames, rosettes and vignettes, microprinting, latent images and moire patterns, signs for the visually impaired, blind embossing, colour shifting ink, including OVI with embossing and latent images, etc.
      • letterpress: serial numbers, texts, barcodes, etc.
      • ‌offset printing including Orlov and rainbow printing: texts, microprinting, moire patterns, background and anti-copy patterns, etc.
      • ‌screen printing: security features with optically variable effects, etc.
      • see-through register
      • perforation
    • physicochemical protection
      • ‌anti-Stokes luminescence
      • UV luminescence with different wavelength
      • ‌IR luminescence
      • security features with magnetic properties, etc.
    • complex security features
      • ‌holographic images, OVD
      • retroreflective protection
      • security features with IR-metameric ink
      • special polymer coating of security laminates
      • metallized coating
      • laser engraving
  • Additional examination of:
    • fragments of document images depending on the degree of absorption or reflection of IR light
    • document alterations such as erasure, etching etc.
    • traces of signature forgery
    • extraneous lines (do not originally belong to the examined object) that are performed with IR opaque inks
    • blurred, crossed out entries, texts and images
    • document mechanical defects such as cuts, tears, folds, etc.
  • Comparison of two images in different combinations (two saved images, saved image against live video, saved images against etalon image from information reference systems, etc.)
  • Automatic reading of:
    • Textual information from machine readable zone of ICAO compliant documents (ID-1, ID-2, ID-3)
    • 1D and 2D barcodes
    • Information from RFID chips in eDocuments (DG1 to DG15, BAC, EAC, AA, PA, TA, PACE) and verification of those chips



  • Border control and immigration services
  • Customs authorities
  • Law-enforcement agencies
  • Forensic laboratories
  • Financial institutions
  • Other agencies and organizations authorized to check documents
  • Document examiners




Additional optional accessories



1. Trinocular Stereo Microscope Regula 5003


  • Examination of security features in banknotes and travel documents in the mode of live video
  • The microscope is based on the Greenough optical system which allows obtaining stereo images of examination objects
  • Smooth magnification adjustment
  • Coarse and fine focus adjustment
  • Additional optical path for the digital video camera
  • Document clamps


A ring-shaped LED illuminator (white light) with variable intensity control

Colour camera:

  • type — CMOS
  • effective pixels — 5 MP
  • frame size, pixels — 2592×1944 (Full Frame)
  • connection interface — USB 3.0



  • optical — 0,8x to 14x
  • objective magnification with 10x eyepieces — 8x to 140x
  • objective magnification with 30x eyepieces — 24x to 420x
  • for a 30 inch (75 cm) monitor* — 26x to 1330x


* – all magnifications are approximate

Diopter adjustment, dptr — ±6

Interpupillary distance, mm — 52...76

Dimensions (length×width×height), mm — 285×285×450

Weight, kg, not more than — 5

Power consumption, W, not more than — 15

2. Calibration Kit

Calibrated White reference material. NIST traceable. For spectrometer reflectance reference.

UV 365 nm, 312 nm, 254 nm and Anti-stokes tester

3. Visualizer of magnetic properties Regula 4197


  • Examination of magnetic security features in banknotes and travel documents in the mode of live video
  • Visualization of magnetically hard and magnetically soft materials
  • Possibility to distinguish magnetic inks by residual magnetization
  • Carrying out non-destructive examination of objects with “hard” magnetic properties
  • Reading latent magnetic strokes and codes
  • Examination of damaged documents: reading blurred and crossed out texts printed with magnetic ink
  • Possibility to take magnetic ink intensity measurements in tesla (T)


Field of view, mm — 14×18

Spatial resolution of the optical input system, mkm:

  • frame size 1024×1280 pixel — 14
  • frame size 512×640 pixel — 28


Connection interface — USB

OS — Microsoft Windows XP (SP3), Windows Vista, Windows 7, Windows 8, Windows 10

Dimensions (length×width×height), mm — 59×113×50

Weight, kg — 0,49

Power supply voltage from a USB port, V — 5

Power consumption, W, max — 2,5

Magnetization intensity measurement
Black & White. Colour (magnetization intensity pattern). Raw


4. Thermostage Regula 4168


  • Examination of images and elements of banknotes and travel documents containing thermochromic ink at different temperatures.
  • Examination of a composite security feature Feel®-ID developed by Giesecke & Devrient company. Feel®-ID is based on optically variable and thermochromic effect.


Temperature range, ˚С — +30...+80 with a step of 1 ˚С

Heated area (length×width), mm — 78×48

Dimensions (length×width×height), mm — 170×78×16

Weight, kg — 0,25

Power supply voltage: powered by the USB port of the video comparator, V — 5

Power consumption, W, max — 15

Temperature +20 ˚С Temperature +35 ˚С Temperature +50 ˚С


5. Tilting stage Regula 4165

Tilt angle, max — ±30

Working area (length×width), mm — (180×110) ±1

Dimensions (length×width×height), mm, max — 230×112×42

Power supply voltage via a USB port, V — 5

Device weight, kg, max — 0,5

Rated current, A, max — 1


6. Polarizer Regula 4169


7. 3D viewer Regula 4162

Light sources:

  • white (30 light sources)
  • infrared, nm — 860±20 (60 light sources)

Dimensions (length×width×height), mm, max — 160×140×40

Device weight, kg, max — 0,5

Power supply voltage via a USB port, V — 5

Rated current, A, max — 0,5





Price from: On application
Out of Stock

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