The Takahashi Sky 90 is a short, wide field 90mm doublet APO refractor. For solar viewing it is outfitted with a Coronado SolarMax90 h-alpha filter which screws into the dew shield with an adapter ring. A second h-alpha filter screws into the back of the focusing tube. That is followed by the Takahashi Extender-Q field flattener which is then followed by the Coronado BF-30 blocker. Then use of the Denkmeier-II binoviewers and a pair of Teleview Panoptic 24mm eyepieces complete a very nice high resolution h-alpha scope. On top sits the Orion Short 80 which is a short, wide field 80mm refractor with an Orion 4.0 glass solar white light solar filter on the front. This pair of scopes when mounted like this provide hi-res h-alpha and white light views side by side.