Good condition. Will fit 8"/larger Celestron SCT's, 8"/larger Meade SCT's or Meade 7" Maks. Rear cell mounting avoids the necessity of changing filters when changing eyepieces. May also be considered as a dust seal.
H-alpha: 496nm 95%,656nm 95%
The orig plastic storage case is in fair condition.
$95 money order -- includes shipping conus