[Malcolm]

Hi, I'm looking for a 66mm secondary. Out of a 10" AOS telescope. I did send both the primary and the secondary to Palmway Optical for re-coating but the secondary has come back in much the same cloudy condition so maybe it wasn't possible to re-coat it. It must be an odd size and I don't really want to have to replace the holder and possibly the spider as well.

It might be possible to carefully remove the holder flange and have a slightly larger flange 3D printed and glued into place as the holder looks like some sort of plastic material. That way I could maybe use a slightly smaller sized secondary. Thoughts on this or where I could get the correct size without having to take out a second mortgage? T.I.A.