the Artemis285 Camera. It is very similar to the ATIK 16HR camera. It uses
the Sony ICX285AL CCD.
is a 1392 x 1040 pixel camera format with 16 bit resolution. The CCD is
an anti-blooming design. One of the aspects I have like about this camera
is a relatively low read noise.
This view shows the CCD behind
the cold chamber window. The mounting system for the camera is a T-Thread
The left row of components are my focal
reducers (and the SCT to T-Thread adapter). The Paul Rini reducer is
mounted by a 2" nose piece - the rear coupling is a T-Thread. Note
that the Celestron 0.63 reducer is mounted by a 2" nosepiece. This
allows the reducer to be used on the Megrez. It cannot be used for reduction
more than about 0.75 since the SCT correction begins to distort the refractor
performance. The middle row shows the T-Thread spacers from 5 mm to 30 mm.
These spacers can be stacked and are used for distance adjustment between
focal reducers and CCD surface. The right hand row is the Astronomik
filter drawer system I use.
Skies at my house
are not very dark, so I usually travel to dark sites. The scope set up and
cameras are portable enough but the need power (and so does the Laptop
sometime). I have a 42 AHR battery; I built a simple control panel with a
built in charger. I have two of these 42 AH batteries. Also included is a small 120 Vac inverter for AC
accessories. I carry it all in a soft lunch cooler.
All images and content remain the property of Jim Thommes
- copyright 2003 - 2014