I took this one ages ago and did not process it until recently.
Mosaics are always tough to process but I am fairly happy with this one at this point (never say never though!).
TEC110 fluorite triplet APO and FLI Proline 16803, PMX mount.
4 panels, 2.5 hours each.
http://www.pbase.com/gregbradley/image/156041798/large
Greg.