This is for an Orion SCT light pollution filter #5658. This is a broadband filter that is very helpfull on Nebulas. According to Orion it will also help see stars and clusters, but not as good as Nebulas. I found that to be the case. Comes in excellent condition with the plastic storage case and original box. Case has some scratches and box is a little beat up.
Hoping to get $55. Firm offers given priority. Paypal, money orders, check, etc. $4 shipping, $6 expedited in the US. Will ship worldwide, e-mail me for shipping.