The Leading Manufacturer
of High End Visualizers


Professional Visualizer Series
VZ-27plus² and VZ-57plus
Progressive Scan

WolfVision's Professional Visualizer series have been known as the Ultimate High End units on the market.

The unique light system of the Professional series greatly improves the overall picture quality, especially when working with 3-dimensional objects. It allows for shadow free illumination, illumination of hollow objects and exceptional depth of focus.

The Synchronized Lightfield makes positioning objects on the work surface quick and easy. The motorized arm and mirror allow users convenient scrolling of documents with the Visualizer's remote control.

Click on the images on this page to see larger pictures!


WolfVision's High Quality Standards

Mechanical quality is a basic requirement for all WolfVision products. WolfVision units are solid and can hardly be damaged. They are built to last a very long lifetime.

If you want to check out the difference in mechanical stability and reliability between a WolfVision Visualizer and any other document camera on the market, just "touch" the units. You will immediately "feel" the difference.


WolfVision Visualizers have always been famous for their outstanding picture quality, which is due to a perfect mixture of high end components and remarkable know-how.

Perfect picture quality means high resolution throughout the whole picture (including the edges), lifelike colors, high frame rate, fast and precise auto focus, smooth zooming, an overall distortion free picture, even lighting without reflections or hot spots and much more.

WolfVision's high priority on perfect picture quality can be seen on the wohle product line - from the entry level to the top of the line Visualizers.

The picture quality of a Visualizer or camera can only be as good as its weakest component. The following 5 basic elements are responsible for perfect picture quality, as found on all WolfVision units:

High End
Camera Lens
+
High End
Image Sensor (CCD)
+
High End
Electronic Hardware
+
High End
Software (Firmware)
+
High End
Light System

Click here for more details on WolfVision picture quality


The Professional WolfVision Visualizer Technology:

How it works

A light projector (1) inside the unit projects a light field (7) the same size as the pick-up area of the built-in camera via the base mirror (5) and the top mirror (6) onto the working surface.

The image is recorded by the camera (2) using the same path. The lenses of the light projector (1) and the camera (2) are synchronized. Thus the size of the light field on the working surface changes when the user changes the zoom range of the camera.

This patented WolfVision scanning and illuminating system offers a number of unique advantages as described below.

State of the Art Picture Quality
WolfVision's Visualizers are famous for their outstanding picture quality, which can only be achieved with a perfect combination of high end electronics, CCDs and lenses.

The difference between the VZ-27plus² and the VZ-57plus is the built-in camera:

.
VZ-57plus VZ-27plus²
Camera 3-CCD Progressive Scan 1-CCD Progressive Scan
Measured horizontal resolution: 1000 lines 820 lines
Resolution in Image Turn mode: 1300 lines 1050 lines
Color reproduction: 100% true colors
(sRGB color precision)
Very good colors
(sRGB color precision)
Effective Pixels 3 x 1024 x 768 (= 2,359,296) 1280 x 960 (=1,228,800)
Frames (pictures) per second 30 frames 30 frames
Pixels processed per second (=effective pixels x frames per second) 70,778,880 36,864,000
Native outputs (real 3-CCD) XGA (1024x768) SXGA- (1280x960)
and
720p HD (High Definition - 1280x720)
Converted output modes (4:3) UXGA (1600x1200)
SXGA (1280x1024)
SXGA- (1280x960)
SXGA+ (1360x1024)
SVGA (800x600)
UXGA (1600x1200)
SXGA+ (1360x1024)
SXGA (1280x1024)
XGA (1024x768)
SVGA (800x600)
Converted output modes (16:9 and 16:10 Widescreen) 720p HD (1280x720)
1080p HD (1920x1080)
WXGA (1360x768)
WSXGA+ (1680x1050)
1080p HD (1920x1080)
WXGA (1360x768)
WSXGA+ (1680x1050)

The picture quality of the 1-CCD Visualizer VZ-27plus² is very good, but the 3-CCD XGA camera of the VZ-57plus tops it all. The built-in camera shows a sharpness and color precision which can not be achieved with a 1-CCD XGA- or SXGA camera (as a 1-CCD camera needs a part of the pixels for the color information). As a result the higher resolution is even visible on an XGA-projector.

The high end scaler of the Visualizers can scale the picture at the image source. As a result the picture quality is not only perfect in native resolution, but also in all scaled signal formats.

WolfVision offers free test charts which reveal the great difference in resolution and color reproduction between WolfVision's new 3-CCD Visualizers and any other high resolution Visualizer. The range of WolfVision's test charts goes up to 1600 lines.



Connectors of VZ-C32 (similar to VZ-57plus) - click on image to enlarge
Both units output the picture on RGB- (15-pin D-Sub and BNC connectors) and DVI outputs. The Auto Resolution function recognizes the connected projector or monitor and automatically selects the perfect output mode.
Widescreen Support

The high end scaler can scale the picture at the image source. As a result the picture quality is not only perfect in the native resolution, but also in all scaled signal formats.

The native signal output of the Visualizers has an aspect ratio of 4:3.The native 4:3 image can also be output in the following additional 16:9 and 16:10 widescreen formats: 720p HD (High Definition), 1080p HD (both at 50 or 60 Hz), WXGA and WSXGA+.

All widescreen projectors, monitors or plasma displays on the market can display at least one of these standards.

If new standards come up in the future, WolfVision will be there with Firmware Updates!

30 Pictures per Second

"Motion" used to be the weakness of Progressive Scan cameras. Until recently they could only pick up 15 or less pictures per second. A low number of pictures per second often resulted in a disturbing strobe effect on the screen, whenever something was moved in the picture or when adjusting the zoom or iris.

WolfVision's Progressive Scan Visualizers could always pick up at least 20 pictures per second, which is very important for showing motion in good quality.

WolfVision has improved the technical standards for Progressive Scan cameras even more. All current WolfVision Visualizer models can now pick up 30 pictures (frames) per second. There is almost no difference in the smoothness of motion, when compared to PAL/NTSC video cameras. But the resolution is much higher!

sRGB Color Precision

WolfVision Visualizers have always been famous for their perfect colors. The outstanding color precision even meets the high requirements of the sRGB standard.

Click here for more information on sRGB color precision.

Easy Positioning (with Synchronized Lightfield)
A key feature of WolfVision's Professional and Ceiling Visualizer series is the Synchronized Lightfield. This popular feature is a special patent of WolfVision and thus can only be found on WolfVision's Visualizers.

A lightfield, the size of the pick-up area of the built-in camera is projected onto the working surface. The illuminated part of the working surface is always identical to the pick-up area of the camera. When zooming in and out, the size of this lightfield changes accordingly.

This allows very easy positioning of objects.

There is no need to look at a monitor. Just place the object in the illuminated portion of the working surface!

64 x Zoom (16x Optical and 4x Digital)

A large optical zoom range is one of the most important features of a Visualizer. It is absolutely necessary that objects in every size can be picked up in full resolution.

WolfVision's optical 16 times zoom offers the possibility to pick up objects as large as an open book (360 x 270mm / 14.4" x 10.8") and as small as a stamp (22.5 x 17 mm / 0.9" x 0.7") in full size to fill the screen. For enlarging even smaller objects down to 5.6 x 4.2mm (0.22" x 0.17") the Visualizers also offer a 4x digital zoom. This enables users to enlarge objects such as a very small coin.

Due to the large range optical zoom, it is not necessary to use much of the digital zoom, so in most cases, you can work with full resolution.

Depth of Focus (Depth of Field)
High depth of focus:
Low depth of focus:

The professional telezoom lenses of the WolfVision's Professional and Ceiling Visualizers feature very high depth of focus. High depth of focus is very important for working with larger 3-dimensional objects. Even at high magnification, they are always sharp from top to bottom.

No other unit on the market comes close to the extremely high depth of focus of WolfVision's Professional and Ceiling Visualizers.

The Visualizers are equipped with a One-Push-Autofocus. However due to the great depth of focus, it is rarely necessary to adjust the focus.

Shadow Free Illumination
Shadow free illumination:
Illumination with shadows:


As the camera and the light projector are situated side by side within the Visualizer and follow the same path, shadows are almost completely eliminated.

During a presentation, it is often necessary to write something on a document on the working surface or to point to a certain detail with a finger or a pencil.

The Visualizers are perfectly suited for this, as there is practically no shadow covering up important details.

Illumination of Hollow Objects / No Light Adjustments
Illuminated on inside:
Not illuminated on inside:

Due to the special light system of the Visualizer, every part of the recorded picture is always perfectly illuminated.

Hollow objects or complex 3-D objects are always completely illuminated - even on the inside.

As a result, there is never a need for adjustment of the light.


Live to Freeze Comparison




The Preview output of the Visualizers always outputs the live image of the Visualizer camera, while all other outputs (DVI, RGB etc.) can be set to output a "freeze" image.

This can be used for a "Live Picture to Freeze Picture Comparison" on two monitors or screens with just one Visualizer.

While one monitor or screen displays a "freeze" image that can be used for comparison, another monitor or screen can be used for presenting the live image from the Visualizer.


100% Reflection Free
The illustrations on the right show that with the special illumination system of WolfVision's Professional Visualizer series, it is impossible for the Visualizer's light to be reflected back into the camera.

Thus the whole working surface is always 100% reflection free.

No light adjustment is necessary in order to avoid disturbing reflections on glossy material (photos, transparencies, etc.)

Firmware Updates through RS232, USB or Ethernet (LAN)

WolfVision's Visualizers are the only units on the market that offer upgradeable firmware. This allows new features and technical improvements to be added at no cost!

Downloading firmware updates from the internet and uploading them onto a Visualizer can be done in 2-3 minutes, with just 4 mouse clicks, using the latest version of WolfVision's Connectivity Software. The user can choose from 3 different connections between Visualizer and computer for updating the firmware: Serial (RS232), USB or Ethernet/LAN.

WolfVision's engineers are constantly working on new improvements and features to keep your units up to date with the technology of tomorrow!
USB 2.0 Port / Twain / Video Capture / AVI

The USB port of the Visualizer can be used to transfer images from a Visualizer to a computer and save them in JPG, TIF or BMP format. This way, Visualizers can be used as scanners for 3-dimensional objects.

WolfVision Visualizers are equipped with a fast USB 2.0 port. This allows for uploading images onto a PC in a fraction of a second.

Connecting slower computers with the older USB 1.1 standard is also no problem. It still takes only a small fraction of the time a desktop scanner requires to scan an image.

WolfVision's USB Software (Connectivity Software) works under Windows 2000, XP and Vista and is fully Twain compatible. This is important when using Visualizers in connection with popular graphic programs such as Photoshop, or for connecting them to Interactive Whiteboards (Smart Boards). A USB Software for Apple Macintosh is also available. Click here for a detailed description of the WolfVision Connectivity Software

The fast USB 2.0 port can also output live motion. The WolfVision Connectivity Software can store AVI-files and includes a video capture driver. You can view and save the live image from the Visualizer on your computer in almost every modern video editing software.

Ethernet (LAN) Port / Advanced LAN features

The Visualizer is equipped with an Ethernet (LAN) port (10/100 Mbps). It is IP-addressable, so that it can be integrated into a computer network and controlled from any computer in the network. It can even be controlled over the internet, if it is assigned an official (WAN) IP-address.

The network/LAN-port has become a key feature of all high-end Visualizers from WolfVision in recent years. Many new network features have been developed and most of them can also be added to older units via Firmware Updates.

Computer Input (Loop-through)


A computer can be connected to the RGB input (15-pin D-Sub-plug) of the Visualizer. With the Ext/Int switch, a user can switch between the Visualizer image and computer image to be output by the Visualizer's RGB output (15-pin D-Sub-plug) and DVI output.

Therefore, only one RGB or DVI cable is required to be attached to the display unit (projector, monitor, video conferencing system etc.) and no separate remote control has to be used for switching between the two image sources.

The Visualizer has a built-in A/D-converter in order to digitize the analog RGB signal from the computer and output it on the digital DVI output.
Built-in Digital Scaler

The Visualizer has a built-in digital image scaler which can process the signal from the external input and output it in the same mode as the Visualizer image (For example: If the Visualizer is set to output an XGA image to the projector and the computer outputs an SVGA signal, the scaler of the Visualizer converts the SVGA image of the computer to XGA. As a result the projector does not readjust the input mode when switching between the Visualizer and computer image)

In addition the scaler also allows the image from the external input to be output on the DVI output and even on the PAL/NTSC video output. Thus the VZ-57plus can also be used as a computer-video image converter.

9 Picture Memory

Split image of 9 picture memory

The user has the opportunity to store 9 images and recall them by just pressing one of the numerical keys on the infrared remote control.

By pressing the "All" key, a split image with all 9 pictures of the memory can be displayed, enabling easy selection. The 9 pictures in the memory can also be downloaded to a PC via USB and they remain in the memory even when the power is disconnected.

Motorized Arm and Top Mirror (for Scrolling)
Motorized arm
With the push of one button, the motorized arm can be raised or lowered automatically.

The top mirror is also motorized. This allows for scrolling text in a document or showing an object in detail by just pressing the up/down keys on the infrared remote control from anywhere in the room.

"Image Turn" Mode for Higher Resolution

Picking up a complete vertical (portrait) letter or A4 sized page has always been a critical issue for a Visualizer because the image has always been picked up in a horizontal (landscape) format. As a result, only 50% of the camera pixels could be used to pick up the vertical (portrait) document.

WolfVision's unique "Image Turn" mode solves this problem. The user places the document on the working surface horizontally and zooms in on it completely. In doing so, approximately 90% of the camera's effective pixels are used to pick up the document. WolfVision's state-of-the-art electronics turn the image to a 90 degree angle and output it in a vertical format with 40% higher resolution. The margins left and right are blacked out.

In this mode, the resolution of a complete vertical (portrait) document is much better. The 1-CCD Visualizer VZ-27plus² can show 8-point characters and the 3-CCD Visualizer VZ-57plus can even show 6-point caracters.

Another advantage of the image turn mode is that very long vertical pages (like US legal format) can be picked up completely.

Camera pick-up area:
Only 50% of the pixels of the camera are used to pick up the letter.

Close up of monitor
Camera pick-up area:
Nearly all pixels of the camera are used to pick up the letter.

Close up of monitor
Recordings Outside the Working Surface

With WolfVision's professional Visualizers, recording outside the working surface can be done very quickly and easily by just tilting the top mirror. Recording is possible at any distance from the unit.

The zoom range outside of the working surface is the same as with most professional video cameras.

This feature is very important for picking up objects which are too large to be placed on the working surface or which need to be shown from the side.

Very Large Built-in Bottom Light / Special Surface for Transparencies



Normal transparencies:
The Visualizer's working surface has a special crystalline white color. This is perfect for true color reproduction of transparencies with the Visualizer's top light.

Slides, x-rays and darker transparencies:
For these objects the new professional Visualizers are equipped with a very large built-in bottom-light. The size is the whole working surface: 380 x 280 mm /15" x 11" (in Image Turn mode it is: 280 x 380mm/11 x 15").

In certain situations the bottom light may be the better solution for transparencies (when the room light is causes reflections or when the transparency is very dark or wavy)

Laser Center Marker
One of the main advantages of WolfVision's professional Visualizers has always been the Synchronized Lightfield which marks the pickup area of the built-in camera.

However, this function is not available when the bottom light or the macro function of the new Visualizers is used.

As a substitute, the VZ-57plus and VZ-27plus² are equipped with a laser pointer which marks the center of the pick-up area. By means of a special technique this laser pointer dot is NOT visible on the picture the audience sees.
Text Enhancer / Negative / Negative-blue
Original
with Text Enhancer
Negative
Negative/Blue

WolfVision Visualizers offer many possibilities to improve the readability of text.

With the "Text Enhancer" function, the outstanding contrast of the picture is improved even more with colors only slightly darker than before.

Dark text on a bright background can sometimes be easier to read if the Visualizer is switched to "Negative" or "Negative/Blue". For special applications (like analyzing x-rays), the image can also be switched to Black and White.

Optimized for Video Conferencing

WolfVision's camera electronics produce a very strong and stable picture, which is very important when a Visualizer is used as a document camera for videoconferencing systems.

The even lighting, smooth auto iris and perfect focus are very important features, enabling video conferencing systems to digitize and transfer the picture from a WolfVision Visualizer much faster than pictures from other document cameras. Furthermore there is no blinding stray light from a WolfVision Visualizer, which could disturb the auto iris of the room camera.

Of course these features are equally important for live image presentations with a data projector and for other Visualizer applications. The Visualizer also supplies the proper signal for modern widescreen videoconferencing systems.

External Controlling



The Visualizer offers 4 different possibilities to control the unit from external devices, such as a remote control system for the whole room, a video conferencing system or a computer:

- Serial RS232
- USB
- Ethernet (LAN)
- Infrared

Other Important Features:

  • DVI-Output (HDMI compatible)
    (DVI is the standard for 100% digital image transfer. No image adjustments are necessary on a projector or monitor with DVI input. Using a DVI-HDMI cable the Visualizer can be connected to a units with digital HDMI input)

  • Infrared Remote Control with laser pointer
  • Intelligent Control Panel
    (active functions are illuminated)
  • No Disturbing Stray Light (important for projection) and No Blinding of the Audience or the Speaker
  • Professional Serial Protocol (RS232) including position setting and status report
  • 3 User Programmable Presets
    (for zoom, focus, iris, light, mirror position, camera settings etc.)
  • Preset Keys can also be used for Specific Functions
    (like black/white, negative, negative/blue, image on/off, iris etc.)
  • Intelligent Automatic Lamp Changer
    (Built-in spare lamp is automatically activated if the first lamp fails. An on-screen warning message indicates if a bulb is faulty)
  • Constant Sync Signal on all Outputs
    (no image distortion when switching the image on and off)
  • Halogen Light
    (with constant light spectrum, for true color reproduction)
  • On-Screen Menu for setting up the unit according to your own requirements
  • On-Screen Help Texts with Reset Function
Warranty

WolfVision offers 3 years warranty on all Visualizers and Cameras!

More documents / Links

Technical Data

Support Documents / Downloads

Brochures in PDF format

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