[Merlin66 (Ken)]

Anyone have experience with the TV Paracorr to reduce coma in fast systems?
What about the ( unavailable!) Pretoria eyepiece Ex-UO or the Klee Barlow.

I'm using a 49mm field flatner lens ( can't remember where it came from, TV or Lumicon?) seems to be OK.

With the HUtech filters, which one is recommended for DSO photos????