Home » Shop » Regula 4308 Video Spectral Comparator

Regula 4308 Video Spectral Comparator

Price On Application

The Regula 4308 is an advanced second line forensic spectral comparator. Top and bottom optical systems with high resolution 14MP and 12MP cameras. Two optical systems allow for viewing both the front and reverse sides of a page without flipping it over. Movable top optical system allows examining thick objects, such as books or artworks.

The device is equipped with a high-resolution spectrometer, a hyperspectral imaging module, 3D imaging module, a light source for anti-Stokes luminescence, a motorized XY translation stage, modules for reading MRZs, RFID chips, hidden images (IPI), and 1D and 2D barcodes. Optical magnification is up to 320x. The device has 30 types of light sources and over 20 light filters. The XY translation stage allows for high-precision positioning with a step width of 0.01 mm along multiple axes and image stitching. The stitching mode helps to obtain the whole image of an A4 format in a single click. A unique motorized oblique lighting system, which allows changing the light source’s angle of incidence, gives a wide range of opportunities for examining the microrelief of a document in the visible and infrared spectrum range. The Regula Forensic Studio software enhances the efficiency of document analysis by giving total control over all comparator’s features.

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 40 types of light sources, over 20 light filters, a self-developed precision optical system and 2 high-resolution cameras. With high resolution imaging of up to 140,000 ppi, 320x optical zoom and x 580 on screen magnification provides unparrelled document detail.

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.

Software

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.

Categories: Advanced Document Verification, Products

Specifications

Light sources

Top optical system
Incident white
Halogen lamp (20 W) for spectroscopy
D50 (LED) for spectroscopy
Ultraviolet	UVA LEDs – 395 nm
	UVA LEDs – 365 nm
	UVB LEDs – 313 nm
	UVС LEDs – 254 nm
Infrared LEDs	700 nm
	780 nm
	850 nm
	950 nm
	1030 nm
High-intensity LEDs Total – 4095 combinations	Violet – 395 nm
	Violet – 420 nm
	Royal Blue – 450 nm
	Blue – 470 nm
	Cyan – 505 nm
	Green – 530 nm
	Amber – 590 nm
	Red-orange – 615 nm
	Red – 635 nm
	Deep Red – 660 nm
	Far Red – 700 nm
	Far Red – 735 nm
Transmitted LEDs	white
	UVA – 365 nm
	IR – 870 nm
	spot high-intensity visible
	spot high-intensity IR – 780–900 nm
Oblique Light Motorized LEDs (130 mm distance)	visible
	IR – 850 nm
For OVD visualization, LEDs	horizontal – 31 white LEDs
	vertical – 16 white LEDs
Polarized, LEDs	top visible linear polarization
	top visible left-hand circular polarization
	top visible right-hand circular polarization
Bottom optical system (LED)
White
Retroreflective/Coaxial light
High-intensity IR for Anti-Stokes Luminescence
Infrared 870 nm
Ultraviolet UVA 365 nm
High-intensity Cyan 505 nm

Optical filters

Filters		Top optical system	Bottom optical system
IR High-pass	515 nm
	530 nm
	550 nm
	570 nm
	590 nm
	610 nm
	630 nm
	645 nm
	665 nm
	695 nm
	715 nm
	730 nm
	780 nm
	830 nm
	850 nm
	920 nm
Visible pass 370–700 nm
UV cut off 450–700 nm
UV cut off 450–1100 nm, fixed
UV Low-pass 400 nm
Linear polarized, motorized
Neutral

Optical parameters

Optical parameters		Top optical system	Bottom optical system
Digital camera	sensor type	CMOS, Backside Illumination
	spectral range, nm	345–1100
	resolution, Mp, not less than	14	12
	frame size, pixels	4416×3312	4016×2760
Field of view	minimum, mm	0,8×0,6	8×5
	maximum, mm	228×171	155×90
	maximum (with X–Y translation stage), mm	310×220	265×160
	maximum (with the raised lifting system of the top optical path 110 mm), mm	330×250	–
Maximum resolution, ppi, not less than		140 000	14 200

Hyperspectral imaging module

395–1000 nm with a step of 1 nm

High resolution spectrometer

High resolution spectrometer (microspectrophotometer) for measurement of absorbtion, reflectance, transmission, and fluorescent features

Wavelength range	350–1000 nm
Field of view	2–0,05 mm
Signal-to-noise ratio	250:1 (at full signal)
Dynamic range	8.5×107 (system); 1300:1 for a single acquisition
Integration time	1 ms to 65 seconds

XY translation stage for high-performance positioning

Maximum displacement along the X-axis	not less than 110±2 mm
Maximum displacement along the Y-axis	not less than 70±2 mm
Step width	0.01 mm

Built-in PC

CPU	Intel® Core™ i7
RAM	not less than 16 Gb
SSD	not less than 256 Gb

ID and passport processing module
ICAO MRZ reading for ID-1, ID-2, ID-3 documents
RFID reader (ISO 14443)
1D, 2D and QR codes processing

Position locked panels
All side panels can be locked in the position to accommodate larger items
Built in sensors will prevent unintended exposure from high intensity UV and IR light if any of side panels is not properly closed

Additional hardware specifications
Lifting Handles for move and setup
Water resistant cover
Quartz Glass Holding Plate (length×width×height), mm	200×200×5
Maximal document size (length×width), mm	620×550
Device overall dimensions (length×width×height), mm	900×650×580
Weight, kg	105 (netto)
Power supply, V; Hz	110-240; 50-60
Output signal / Interface	USB 3.1 Gen 1

Software modules
Device operation	Regula Forensic Studio software
Multilingual interface

Software functionality
Automatic and manual focus, iris, white balance
Multi focus
Chromaticity diagram
3D modeling of the selected area
Polarisafe feature	polarised visible LEDs for viewing birefringent security features plus a linearly polarised LED crossed with the polarising filter
IR Luminescence light	4095 combinations
IR luminescence vizualization
Letterscreen++
Pulsed 365 nm UV LEDs for differentiating fluorescent and phosphorescent security ink
Super Resolution Imaging
Visualization of 3M™ Confirm™ laminate
Visualization of Invisible Personal Information (IPI – Hidden image)
Visualization of Optically Variable Inks (OVI)
Both vertical and horizontal scanning of Diffractive Optically-Variable Devices/Holograms
Integration with Regula Information Reference Systems

Additional software functionality
Image stitching (with X-Y Translation stage)
Saved document format	.BMP, .JPG, .TGA, .TIFF
Measuring various parameters	length, path, area, angle, diameter, etc. Ability to save with the image the types of lighting, filters used, shooting date, etc.
Accumulation of images (camera integration time)	up to 50 frames
Video recording
2 USB ports 3.0 and 1 USB port 2.0 on the front panel for external devices
Image post processing

Recommended PC and monitor requirements (minimum)
Intel Core i7 processor or equivalent
SSD, Gb, min	520 (1TB recommended)
32-inch 4K UHD Flat Panel Monitor
RAM, Gb, min	16
Graphics card with a minimum of 1GB Ram
Operation System	Windows 10, 11

Description

The Regula 4308 is an advanced second line forensic spectral comparator with over 40 integrated light sources, hyperspectral imaging, spectrometer, XY motorised translation stage and dual integrated cameras for forensic level examination of questioned documents.

Trinocular Stereo Microscope

The microscope uses the Greenough optical system for stereo imaging and adjustable optical magnification up to 420x. It provides different white light options with intensity control and allows for operational mode, focus, and magnification adjustments directly on the device.

The microscope is based on the Greenough optical system, which can obtain stereo images of examined objects. Such an optical system allows smooth magnification adjustment. It can be equipped with different complexes of white light with variable intensity control: ring, transmitted and direct (gooseneck). Switching the modes of operation, focusing and changing the magnification is performed using the controls on the device body.

Regula 5003 can display a zoomed image of the investigated object on the display using Regula Forensic Studio software. The microscope makes it possible to perform additional visual control using eyepieces with 10x or 30x magnification producing on screen magnification from 26x to 1330x

Morphing Detector

Regula 4166 detects morphing in document photos by revealing surface-level artifacts like paint droplets—ideal for quick checks and expert forensic analysis.

Passport photo morphing—the blending of two facial images into one—is an emerging security risk with global implications. Fraudsters exploit this technique to create a single photo that resembles multiple people, allowing unauthorized individuals to cross borders using forged or manipulated travel documents. As border control agencies and forensic labs face increasing pressure to prevent such deception, accurate detection tools are essential.

Thermostage

The helpful add-on for examination of images, travel documents and banknote fragments that contain thermochromic ink at different temperatures. Variable temperature range from +30 to +80 ˚С with a step of 1 ˚С

Magneto-Optical Visualizer

Non-destructive examinations in real-time video mode. The device visualizes hard and soft magnetic materials, reads hidden magnetic marks, checks damaged documents, and evaluates magnetic parameters for security features and more.

Regula 4197 is designed for carrying out non-destructive examinations of objects with magnetic properties in live video mode.

The wide functionality of the device includes visualization of magnetically hard and soft materials, the ability to distinguish different types of magnetic materials by residual magnetization, reading of latent magnetic strokes and codes, examination of damaged documents, e.g., reading of blurred and crossed-out texts printed with magnetic ink, assessment of magnetic parameters for document security features, e.g., distribution of magnetic induction and magnetic flux modulus.

The device’s power supply, control, displaying and processing of examination results are managed via a PC and special CADR software.

Tilting stage

In forensics, a change of perspective is sometimes critical. This tilting stage works best for such cases! It can also be used for the examination of widespread security features of banknotes and travel documents that are visualized at different lighting and observation angles, for example, OVI, DYNAPRINT®, FUSE-ID, and others.

Polarizer

This optical filter changes the angle of polarization for a thorough examination of items containing invisible components, for instance, product liability and protected geographical indication labels on medicines, drinks, and other products.

Mirrors for Document Edge and OVI Examination

This set of compact mirrors is designed to assist in document authentication. One mirror is specifically for examining the document edge, allowing for a detailed look at the serial number and the passport stitch line. The other mirror is intended for observing the OVI (Optically Variable Ink) features.