FIRST DETAILS OF HB 740E Type 1/2 CAMERA
The new HB 740E camera is based on the Type 1/2 Sony HAD ExView
chip believed to be
ICX248AL or a later derivative of that chip. The driver chips
are also Sony, and are
CXA1310AQ (Monochrome CCD Processing) and CXD2463R (Timer
chips are used in the Type 1/3 cameras such as the ExView
1004X board and PC23C,
PC164C camera series. So much of the work of Ron Grove, Robins,
Dave Molyneaux, and
many other pioneers, may also be applicable to these larger
The HB 740EWP camera is about a 2" cube with lots of space inside
arrangements, and is manufactured by Hicams in Korea (
www.hicam.co.kr/main/ ) and can
be obtained in USA, complete with a 4 mm lens (or others),
cables, and the required stable
power supply, from SCS Inc( www.spycameras.com ) This camera
is the EIA version that
works with NTSC recorders and TVs. These cameras are so new that
they do not appear yet on webpages, but ask directly about them
at the web sites.
Significant Specifications For Astronomical Use
8 mm diagonal chip 7.98 mm (H) x 6.45 mm (V)
Pixels 8.4 (H) x 9.8 (V) microns
Usable pixels 768 (H) x 494 (V)
Spectral performance. Good up into the blue region, much better
than the Cookbook
Minimum illumination 0.0003 lux at f1.2
Shutter Auto or manual, with many options.
(I used the manual shutter to reduce the illumination from Mars
and had to also insert a high
attenuation filter,so as not to saturate the chip for video
Auto Iris settings are also possible, but I have yet to discover
whether these are useful. It has
Video, and DC options available apparently.
Although it sees quite faint stars in the basic TV mode, it
clearly needs more integration time,
probably based on the "Jon Grove Modifications" (
), or something similar. I have not carried out these
modifications, and have yet to find
anyone who has. It looks very promising though.
The video output is a BNC socket, but a conversion from BNC to
RCA socket came with the camera. RCA is the standard TV video
The camera has a C-fitting at the front when the lens is
unscrewed, and this can be coupled to
the telescope using a standard C to T adapter, obtainable from
Astronomy stores. It then
exactly equivalent mechanically to any camera with its T coupling
to the end of the telescope.
First External and Internal Pictures
These images were taken using a colour scanner. The first images
show the camera with the 4
mm lens and the rear control panel supplied with the camera.This
rear panel is supported for the photo on a wooden rod as the
video plug sticks out some way.
Click on each image to see a larger view, and use the browser
"Back" button to return to this page.
The next images show the inside views without demounting either
board. The two Sony
control chips are at the top of the board with the 2463 chip on
the left and the A1310 chip on
the right; pin 1 is the lowest left pin of each chip.
Has anyone modified this camera yet ? Anyone who is interested in
modifying this camera
can contact me at ( firstname.lastname@example.org )