Focal Reducer / Corrector 0,8X Televue for 400-600mm focal lengths

This reducer is mainly used for photography and images . Fits all types of telescopes and more specifically TeleVue apochromatic lenses. The TRF-2008 model offers a 0.8x reduction suitable for any telescope whose focal length is between 400mm and 600mm .

Important note: if you use a CCD camera , make sure you have a 56mm ± 2mm rear focus. The rear focus of the gearbox (or "metal back") is the distance between the last mechanical surface of the gearbox and the CCD sensor.