The Sidereal Trading Manual Camera Rotator has a male M48 thread on one side and a female M48 on the other side. It manually rotates through 360° and locks in place using three locking bolts. It can be used in several ways. If you do not use a corrector, you can add a 2″ nosepiece to the female thread on the telescope side. This goes into a 2″ compression ring on your focuser. Add a camera to the M48 male thread on the camera side and focus and rotate the camera to set up your image. If you have a corrector with an M48 thread and use a DSLR, you can use a nosepiece to attach the rotator to the focuser, then attach the corrector to the male M48 on the other side of the rotator, then the t-ring and DSLR (see our gallery image). This will give you the correct back focus. If you have a corrector and use an Astronomy Camera, you attach the rotator to the focuser using a nosepiece, then attach the corrector to the rotator, insert the required spacers (16.5mm and 21mm) to the corrector and then attach the camera. This will allow you to use an off-axis guider and a filter wheel or drawer and get the correct back focus. (See the gallery image.) NOTE: This rotator is suitable for flatteners that have a 48mm female thread at the telescope side, such as this one and this one. With the flattener installed on the rotator, you simply build the imaging train as normal. If you have a flattener that has a particular thread, you will need to put the flattener on first, then the rotator. This will require adjustment to the back focus of the imaging train, and prevent you from using an off-axis guider, or a filter wheel, or both. If you are in doubt about this, call us for advice.
