This camera adaptor eliminates wave patterns caused by interference on monochromatic solar images.
When photographing the sun with long focal lengths in monochromatic light, such as H-alpha, the appearance of lines (Newton's rings) on the image is a common problem caused by reflections of nearly parallel light beams in the image sensor.
The Interference Eliminator tilts the camera by up to 5°, but leaves the centre of the sensor in the same place, so that the focus, image section and vignetting remain unchanged. This tilt changes the angle of incidence and the optical path in the sensor, thereby reducing or even completely eliminating the interference.
The Interference Eliminator is designed for use with small aperture ratios, ideally 1:30, as is common with most DayStar filters.
This tilt reducer also acts as a focal length reducer, enabling you to cover the maximum possible field of view even with smaller image sensors. Depending on the telescope’s focal length, it is even possible to capture the entire solar disc with small sensors. Exposure times are approximately one-ninth of those required without the reducer. The faster aperture ratio reduces interference fringes, meaning that only a slight tilt – or none at all – is required.
