Here is a broadband, dichroic, light pollution reducer to thread onto your standard SCT's threaded back. It's a Celestron #94127A, and it originally cost $118.
It's in excellent condition, but a little dusty. It's not a good idea to attempt cleaning a dichroic coating, and the dust doesn't affect performance.
$75 includes USPS Priority Mail shipping in continental USA.
I am interested in trading for a 2.3mm Lanthanum EP, or will consider other <3mm designs. I'm also looking for a set of 5.625" ID Parallax rings for my CR150HD.
Paypal instant transfer preferred. Money orders get shipment upon receipt, personal checks must wait for my bank to clear them.