The sky watcher planetary 9mm uwa eyepiece is ideal when high magnification is required for the observation of fine planetary and lunar detail based on a modified plossl design this fully multi coated eyepiece is constructed with five lens elements and is characterised by its wide 58 degree field of view low distortion high contrast performance and comfortable operation there are other sky watcher planetary uwa eyepieces available in 25mm 4mm 5mm and 6mm focal lengths each model featu