The new focuser for our RC8 setup was delivered today. It’s a 2″ TS focuser designed for RItchey-Chrétien configurations.
This heavy-duty piece will host our 5D mark II and probably a field flattener/ corrector in order to correct the field distorsion that it’s noticed especially while using wide sensors such as the one that is placed in our 5D mark II system.
Back focus will be also tricky since in the RC configuration the focal plane can be several centimeters out of the ota output. Actually we will implement 50mm tube extension in order to keep the sensor at the correct focus distance.