Quote:
Originally Posted by MortonH
David, how often do you manage to push the magnification up to 300x on your scope?
Morton
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given that i actively cool my mirror so it is ambient and observe / image at 4am with jupiter high in the sky, i am using the 4mm almost religously every night i have clear skies. I have found that having a mirror over 1/2 degree over or under ambient is the major cause of bad seeing....
it is a nice ep for star testing with and I have definately enjoyed looking at the cores of tuc47 and eta carina with it.
TMB also do a 5,6,9 and another one that escapes me.
Frontier look to sell both pentax and TMB, maybe daniel has a feel for which performs best per $$??