SXVR-H18 handbook - Starlight Xpress

Handbook for the SXVR-H18 Issue 1 March 2010Aligning the CCD to the optical axisThe large area of the KAF 8300 CCD can lead to problems of alignment between theCCD plane and the focal plane of the telescope. If you can detect uneven star imagedistortions towards the edge of the CCD field, this may indicate that the CCD planeneeds to be adjusted. The front plate of the SXVR-H18 incorporates three sets ofantagonistic screws that allow the plate to be tilted by up to about +/- 1 degree relativeto the CCD surface. To make an adjustment, slacken the appropriate set screw andthen turn the adjacent cap head screw in the required direction. Complete theadjustment by re-tightening the set screw.Avoid raising the plate by more than is necessary to level it, as a slight light leak mayoccur between the disk and camera body if the gap is large.Some details of the camera and CCD characteristicsCCD type:Kodak KAF 8300M ‘Blue Plus’ full-frame CCD imager.CCD size: Active area 17.96 x 13.52mmPixel size:5.4 x 5.4uMNumber of pixels: 8,328,304QE peak:approx. 56% at 550nMSpectral response:Dark signal:Power consumption:Typically 0.01 e per sec at -10C CCD temperature220v / 110v AC @ 12 watts max., 12v DC @ 750mA24