The Escalon Medical Imaging CFA Digital Imaging System provides unparalleled image quality for retinal photography and fluoroscein angiography. The technological advantage of the CFA system is apparent at first notice, in many cases producing images of higher quality than conventional film. This technology allows for the benefits of digital imaging to be realized, such as immediate review, diagnosis, and treatment, yet without sacrificing quality. The CFA Digital Imaging Systems offers many advantages.

Color Photography and Fluoroscein Angiography Using Same Digital Camera Back

The ergonomic design captures both color retinal photography and fluoroscein angiography using the same compact camera back, eliminating the need to change camera backs.

Leading Edge CCD Sensor Technology

The image capture chip utilized is a CCD sensor that is the same size as a full 35mm frame (2,000 x 3,000 pixels). This chip is considerably larger than others on the market today, and delivers extremely sharp images at a high enough resolution that magnification lenses, extenders, and extender tubes are no longer necessary. The graphic at the right compares the surface area of the EMI chip to other widely used capture chips.

Parfocal

Using the parfocal CFA Digital Imaging System camera back, the integrity of the image is maintained through both the lens and the computer monitor. In this way, the user sees exactly the same image that the system captures.

No Optical Reduction

The full frame 35mm chip enables the CFA Digital Imaging System to capture the entire retinal image without the optical reduction necessary in other systems. This eliminates potential image quality loss through optical distortion and delivers a sharper, cleaner, and clearer image.

Maximize Resolution of Fundus Camera Optics

The CFA Digital Imaging System maximizes the resolution of a fundus camera optical system. The digital camera back is no longer the weak link in obtaining high-quality, accurate images.

Dynamic Range Greater than Conventional Film

Another advantage in using the CFA Digital Imaging System is the dramatic increase in the dynamic range of image capture. The system can deliver a range that is beyond what film and output media provide - 4,000 to 1 for the CFA versus 1,000 to 1 for film. When looking for specific characteristics in a patient, the image range can be adjusted to optimize the capture image providing the opportunity to see things you've never seen before!

Eliminates the Need for Using Magnification Settings

The CCD sensor chip captures a raw image of a large enough size that the entire retinal area can be captured at a high enough resolution so that magnification settings are no longer required. The image quality is so good that enlargements from the initial capture can be made without image degradation. In many cases, the enlarged image will be of superior quality when compared with images captured using conventional film.

The CFA Digital Imaging System camera back itself is compact and connects easily to a variety of fundus cameras. This lends it portability, useful for multiple office practices. In addition, the use of OcuNet-PC enables image review on any computer capable of running Microsoft Internet Explorer 5.5.

Requires No Modification to Fundus Camera

Many other camera backs require special modification to a fundus camera in order to allow for connection. This involves unwanted and costly downtime as well as irreversible changes. The CFA camera back connects simply, without modification to your fundus camera.

Compatible with Several Fundus Cameras

The Zeiss dovetail mount provided with each system enables connection to a wide variety of existing fundus cameras, including Zeiss and Topcon models.

Easy Quick-Connect Cables

The CFA Digital Imaging System digital camera back connects to the fundus camera via robust quick-connect cables - no tools required.

Keep Current Exposure Settings

The light sensitivity of the CFA Digital Imaging System camera back is comparable to that of conventional film. This means that all exposure settings will stay the same when converting from film to digital, eliminating the need for any retesting or recalibration.

Barrier Filter Slider

The unique barrier filter slider moves in and out allowing easy access to filters, thereby reducing the amount of handling and extending the useful life of filters.

The CFA Digital Imaging System consists of a digital camera back, capture station computer, EyePhoto image capture software, and OcuNet-PC database software. The digital camera back incorporates the use of a 2,000 x 3,000 pixel CCD sensor for image capture. The capture station is supplied with an image capture board which allows the computer to capture high quality images at a sustained rate of one frame per second for fluoroscein angiograms and one frame every 1.5 seconds for color. Use of the browser-based OcuNet-PC software allows the user to set-up multiple review stations, without the need to purchase additional software licenses.

EyePhoto Software

EyePhoto software is used to capture images into a Megavision file format. The user is then allowed to maximize the amount of clinically useful information in individual images through a series of variable developers. The user has the option to save images in either .tiff or .jpg formats.

OcuNet Software

The full service OcuNet-PC database allows for storage of patient information, archiving of images, creation of custom contact sheets, and building and storing stereo images. The browser-based format of OcuNet-PC combined with Microsoft Windows 2000 operating system simplifies networking and allows remote users to access database information and images without the need for dedicated review stations.

Capture Station Computer

The capture station computer is specifically configured to optimize system performance, and includes:

• High-Speed Intel Pentium Processor
• Microsoft Windows 2000 Professional Operating System
• Minimum of 768 MB RAM
• Dual Hard Drives
• High-Speed CD Writer
• One Open PCI Slot
• 19" Flat Screen Monitor
• Uninterruptible Power Supply

Review Station Computer

Using OcuNet-PC, any computer capable of running Microsoft Internet Explorer 5.5 may be used to review images (Macintosh or PC-based). A laptop computer with a wireless network connection can even be used as a moveable review station.

Intel and Pentium are registered trademarks of Intel.
Microsoft, Internet Explorer, and Windows are registered trademarks of Microsoft.

Printers

EMI provides as options two high quality dye sublimation printers. The Sony UP-D70AP printer produces high quality color or black and white prints. The Sony UP-D70XR offers the same capabilities as the UP-D70AP, and in addition can produce black and white transparencies.

AnthroCart

The AnthroCart is ideal to hold the CFA Digital Imaging System, providing an adjustable, mobile, and open design. The robust cart construction and manufacturing quality is backed by a lifetime warranty.

AnthroCart and Sony are registered trademarks of Anthro and Sony, respectively.