Regula 4307 Video spectral comparator

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The device is made as a single unit for desktop use. It is used with a PC and fully controlled through "Regula Forensic Studio" software interface (supplied with a unit). The video spectral comparator enables to capture, process and store digital images of examined objects. All models are equipped with a hyperspectral imaging module, modules for reading MRZ, RFID chips, hidden image (IPI), 1D and 2D barcodes. Regula 4307 is supplied with a Spectral luminescent magnifier Regula 4147, information reference systems "Passport", "Autodocs", "Currency" (Brief versions).

Regula 4307 has a set of light sources of visible, infrared, ultraviolet spectral ranges and imaging filters used for carrying out forensic examinations.

The comparator can optionally be equipped with a high resolution spectrometer, a light source for anti-Stokes luminescence, an XY translation stage, a built-in PC.


• Magnification up to 200x (for 30 inch monitor)
• Connection interface — USB 3.0
• Protective shields against harmful UV radiation
• Big size/thick documents examination option
• Possibility to use with additional equipment (magnetic ink visualizer Regula 4197, spectral luminescent magnifier Regula 4177 and information reference systems on travel documents and banknotes


Examinations under high magnification on different levels:

• protection of the document basis
    - paper opacity, watermarks, security fibers, planchetes, security threads, foil stamping, pole feature, all types of windows, transparent vanish coating, shadow images, etc.
• printing methods
‌    - intaglio: texts, guiloche 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

Light sources incidentultraviolet 365 nm
ultraviolet 313 nm
ultraviolet 254 nm
ultraviolet 400 nm*
400 nm*
450 nm*
470 nm*
505 nm*
530 nm*
590 nm*
620 nm*
640 nm*
infrared 700 nm
infrared 780 nm
infrared 860 nm
infrared 940 nm

All light sources are LEDs except ultraviolet 313, 254 nm

* - separate LEDs, can be used in combinations (255 combinations)

convertable infrared 800-1100 nm for Anti-Stokes (optional)
ultraviolet 365 nm
spot white
spot infrared
All light sources are LEDs
All light sources are LEDs
coaxial polarizedwhite LED
OVDhorizontal: 31 LEDs
vertical: 9 LEDs

Camera filters:

• IR High pass 580 nm
• IR High pass 600 nm
• IR High pass 630 nm
• IR High pass 650 nm
• IR High pass 670 nm
• IR High pass 685 nm
• IR High pass 700 nm
• IR High pass 715 nm
• IR High pass 730 nm
• IR High pass 780 nm
• IR High pass 850 nm
• Visible pass 370-700 nm
• UV cut off 450-1100 nm
• Polarization


• Visible pass 390-410 nm
• Visible pass 440-460 nm
• Visible pass 460-480 nm
• Visible pass 495-515 nm
• Visible pass 520-540 nm
• Visible pass 580-600 nm
• Visible pass 605-635 nm
• Visible pass 625-655 nm
• Neutral

Video camera* — 5 Mp, CMOS

Spectral response — 350-1100 nm

Frame size, pixels:

• 2592×1944 (Full Frame)
• 2592×1460 (16:9; Extra Full HD)

* – optional installation of a 14 Mp CMOS camera is available (frame size: 4416×3312 pixels)


• optical — 30x
• digital — 2x (optionally up to 8x)
• for a 32 inch (81 cm) monitor* — 1,7x to 840x 

Fields of view:

• 196×147 mm to 6,5×4,9 mm ± 5% (Full Frame)
• 196×110 mm to 6,5×3,6 mm ± 5% (16:9; Extra Full HD)
• 240×190 mm to 6.5×4.9 mm ± 5% (with X-Y Translation stage)

* – all magnifications are approximate

Maximal document size (length×width), mm — 530×400

Output signal / Interface — USB 3.0

Control — Software

Software update — life update

Integration rate to increase sensitivity to faint images — Yes

Polarisafe feature — Optionally

IR Luminescence light — 255 combinations

IR luminescence vizualization — Yes

Image stitching (with X-Y Translation stage) — Yes

Saved document format — .BMP, .JPG, .TGA, .TIFF

Ability to save with the image the types of lighting, filters used, shooting date, etc. — Yes

Accumulation of images (camera integration time) — up to 50 frames (up to 180 sec)

Video recording — Yes

Operational System — Windows

Built-in PC — Optionally

USB port 2.0 on the front panel for external devices — Yes

Image post processing — Yes

ICAO MRZ reading for ID-1, ID-2, ID-3 documents — Yes

RFID reader (ISO 14443) — Yes (built-in)

1D and 2D Barcodes — Yes

QR — Yes

Automatic and manual focus, iris, white balance — Yes

Multi focus — Yes

Database — Yes (with full software integration)

3M™ Confirm™ laminate — Yes

Hidden image (IPI) — Yes

OVI — Yes

OVD — Yes

Water resistant cover — Yes

Quartz Glass Holding Plate (length×width×height), mm — 200×200×5

Multilingual interface — Yes

Device overall dimensions (length×width×height), mm — 580×495×450

Weight, kg — 36 (netto)

Lifting Handles — two suitable handles for easy move and setup

Power supply, V; Hz — 110-240; 50-60

Power consumption, W — 200