Quote:
Originally Posted by dannat
i prefer to keep the expense down, edmund rke 28mm
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Add me to this one.
In my 8" f/4 dob, it's the only "low power" EP.
This combo outperforms my 17.5" f/4.5
at home (Sydney) with any EP you'd care to use. Out in the sticks, that's another matter.
I'm not saying there aren't better EPs. I know there are.
As for wide field, 68 deg. limit for me. No one has given me a satisfactory reason why it should be larger. 80deg. 100deg. 120deg. Why? You spend so much time stuffing around moving your head around to see the whole FOV. Look away from the EP and then back, and you again stuff around finding what you're after instead of 'there it is'. Doesn't seem like much, but add up the time over a session!
The "just because" and "space walk" reasons seems to me a clever ploy to extract money. You also run into additional optical aberations, coma, astigmatism, etc. Then more money, and extra bits to drop, to stick extra bits of glass to 'correct'. I've got a coma corrector (MPCC), came to me through 'inheritance'. I never use the blasted thing - I see less stars with it!
My eyes are human eyes.
Panoptics - COOOOL,
, but I don't have one.
GSO Superviews - COOOOL too. I'm aware of their short comings, & I'm prepared to work with them. I've got 3.