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MegaVision Imaging Products

E3

The E3 is  both the image quality  leader of Fluoresceine angiography and  the workhorse of a busy retinal imaging suite.  The E3 is the successor to the CFA which changed retinal photography forever.  Prior to the CFA, no digital solution to retinal photography could match the quality of film.  With the introduction of MegaVision’s CFA, film’s image quality leadership was unequivocally supplanted.   Constant improvements and continued refinements make the E3 today as state-of-the-art as it was when it was introduced 5 years ago.  It was then, and continues to be today, the right choice for uncompromising quality and long, trouble-free service.

With a full frame 35mm format, the E3 is a perfect match to the 35 mm film port of both legacy and new mydriatic fundus cameras.     With a data rate of 10 mpixels/second, an image is transferred from the E3 to a host computer in well under 1 second. 

The E3 is available in both color and monochrome.  Very high S/N and special rendering software enable high quality FA image captures from color sensors.  For the very best FA image quality at lower light levels, the monochrome back may be used


E3 Specifications

Sensor

 Full Frame CCD

Pixel Size

12 µm square

Max Resolution

 3072(H) x 2048 (V) ---- 6.2 megapixels

Max Image Area

 36.8mm (H) X 24.6mm (V) ---- 44.2 mm diagonal

Size

3.25” Wide X 4” long X 1.5” deep (8.3cm  X 10.2cm  X 3.8 cm)

Note: Size does not include mating connectors and optics.

Weight

 14oz

Environmental

 Operating: 0-30C non-condensing

Storage

 -10-50C non-condensing

Power

 Supplied through IEEE 1394 interface

 10-24 V DC Conforming to IEEE 1394 specification

 Nominal 6 watts, Max 8 Watts on read-down

Hardware Trigger input

 Input for trigger: 2-Pin Lemo Connector

Trigger on Low transition (TTL logic level)

Integration completes on return to high

Strobe Trigger output

 PC connector, Nikon type with screw threads

Indicators

 Single Green/Red LED

         Green

 Enabled and ready to capture

          Red

 Busy---not ready to capture

S/N

 71.4 dB at base gain

Live Focus

 Not supported

Binning

 1X, 2X, 4X,

Color

  Monochrome or RGB Bayer pattern

User controls

 All controls through software

Gain

 Software controlled, 1X, 2X, 3X, 4X  via linear preamp

ISO

 Color: 100---400   Mono: 200-800 at 1X Bin

Read down time

0.8 seconds (includes transfer to host computer)

Bits per color(mono)/total

 ADC: 12/36    File: 16/48

File Sizes

       RAW (.DNG)

Monochrome/Bayer:  12.6 megabytes (uncompressed, unpacked)

Monochrome/Bayer:  <6 megabytes, (typical, lossless compression)

       TIFF (Uncompressed)

6.3 megabytes mono  / 19 megabytes color at 8 bits/color

12.6 megabytes mono / 37.8 megabytes color at 16 bits/color

       JPG

< 2 megabytes Mono / < 4 megabytes color visually lossless compression

Host Cameras

 Zeiss FF3/4, 450  Topcon 50 VT/X/EX/DX Canon 60UV/UC Kowa

Connectivity

 IEEE 1394, 400 Mbit/second (FireWire)

Host computer requirements

Operating System

 Windows Vista, XP, or  2K :  Professional  recommended

Display

Recommended minimum: 1280X1024

Processor

Recommended minimum 1 GHz P4

Memory

Recommended minimum: 1 Gigabytes for location

Disk Drive

8 Gigabyte unused