I'm seriously thinking about hoofing to China for this year's total solar eclipse, but did not want to haul a whole bunch of gear.
Thankfully a nice mix classic design (Questar 3.5") plus new tech (Canon 5dMKII) provided a very effective and compact "airline carry on" solution which I tested for the first time today.
http://www.atscope.com.au/BRO/gallery43.html
Apart from providing a good image scale. the strongly curved Mak corrector reduces internal reflectons and looks to be the kit I'll take this year...provided a Monsoon does not park itself over Shanghai!