The ST-237a is a
great little camera to start off CCD imaging with. I purchased
this unit second hand which included its internal colour
filter wheel. The major reason for purchasing this camera was
its ability to be used in fastar
configuration. I'm also now finding with the FR-237 focal
reducer, this camera works equally well in the primary focus
position on the N11GPS.
Sony DSC-S30 Digital camera
used this camera to take a number of planet eye piece
projection shots on the N11GPS. I purchased an adapter from Scopetronix
to mate the camera to a 1 1/4" eye piece. The shots are
available on the images page.
Canon T70 35mm SLR
this camera new back in 1986. It's proved to be a good camera
for astrophotography. It has a bulb setting and a electronic
cable release to ensure now vibration when the shutter is
opened. Even though it has an electronic shutter, the camera
uses 2x AA batteries, so I've had no issues keeping the lens
open for an hour at a time.
Hyperstar Lens for ST-237a
of the attractions to the N11GPS was its Fastar capability.
Currently you can purchase lens for both the 8" and
14" Celestron SCT's, but not for the N11GPS even though
it has been on the market since August 2001. Starizona
has now designed their own fastar compatible lens called the Hyperstar.
Starizona employed a NASA optical expert to do this. First
impressions of the lens is that's its superior to Celestron's
lens offering a faster F ratio at 1.8 and no vignetting. At
this stage the Hyperstar will only work with the ST-237a. Have
a look on my links page for more info
on the fastar / hyperstar.
Lumicon Giant Easy Guider
is used to attach my canon T70 to the N11GPS for film based imaging.
It works very well as a guider once you can track down a bright
enough guide star. For some excellent tips on using the GEG click here.