Quote:
Originally Posted by Joves
The greatest improvement over the PST is the extra aperture/resolution. Going from a 40mm objective to a 76mm objective is effectively 3.5 times increase in light gathering/resolution. Using my 110mm ED APO is basically a 7.5x increase. The level of detail seen with these gains is astonishing, both in active surface regions and prominences/spicules on the limb. The suns disk really comes to life in a larger scope.
Don't get me wrong, I love my PST and it afforded me my first ever views in Ha. I can't see myself ever getting rid of it, probably only for noatalgia's sake though, as I can't see myself really using it very much anymore either. With the Quark in my TV76, using 25mm-32mm Plossl's, I can get full disk views. Tighter the through the PST, but definitely full disk, and with very obvious detail across the entire disk, compared to the quite obvious sweet spot I have to work with in the PST. And this is full disk without having yet tried a focal reducer, which I must do. Apparently the combination works ok.
|
It does sound like a great addition to an existing small refractor. I'll be watching this space out of interest, although I'll probably stick with the SM60 for the high resolution views.