Using my ASI290MM on SolarMaxIII 70/400 f/5.7 the Sundisk could not be 100% captured. Therefor I bought a 2" focalreducer x0.5.
The first result is promising.
Setting : SolarMaxIII 70/400 f/5.7 DS BF15with ASI290MM (and focalreducer 0.5x)
Software : SharpCap Pro, AS3!, IMPPG, CS4
