Hello all, for the past few months I've been debating on EP lineup, fixed FL, zooms, and stumbled upon power slides late last night. In my mind, a power slide like this would give me the best of all worlds, I suppose I'm just looking to bounce some ideas off experienced observers, particularly if you have experience with power slides.
I am in the midst of planning my focal lengths for EPs, I have the pleasure of owning a nagler 17mm type 4, and will get the chance to try a 14mm delos shortly. I have been reading about EP' with long eye relief for observing with glasses, the baader morpheus, pentax xw, ES 92 degree, and delos are all in my sights and under consideration.
I currently own a 200p F5 skywatcher on a CG5 eq with 2" steel tripod. I may have plans in the future to upgrade to a 10-12" collapsible newt. It's not rock solid, but I believe it is stable enough to use the power slide with a moderate 2" EP. I'm not worried about in travel with my focuser, I have a low profile and extension tubes. The option to use widefield EP' barlowed is fantastic since my mount is manual, I don't mind chasing, but the less the better.
From my understanding, the earthwin power slide takes a single EP, and allows it to barlow at 1.3, 1.7, and 2x. It also allows the use of two filters, and I have read accounts that it corrects coma? Not sure about that last one. My "master plan" was to eventually own a nagler 31mm, keep the 17mm nagler OR 14mm delos, and grab a 9 and 6.5mm morpheus with a barlow. But, with the earthwin in consideration, if I went with a 30ish mm widefield (nagler would be to heavy with power slide I'm guessing), and a 10-12mm, that would satisfy most if not all the FL I could want.
I am also under the impression that if I ever upgraded my scope, I could potentially just swap out the two EP' for different FL, and I'm back in business. It seems like such an efficient and painless system in my mind. But maybe I am just not thinking everything through. I've been debating a leica or swaro for 6 months now, but I can't justify the cost if I stick with a few fixed FL. This would allow me to budget high for two great EP, and not have to think about it again for awhile. And with an F5, I doubt I would ever go past 4.5-5mm, but I could be mistaken. I believe the furthest I've taken it to is 4mm, but only with an inexpensive sky mentor zoom barlowed.
I've only been observing for a year, so maybe I am in over my head. This just seems like an efficient and simple system that satisfies "zooming" and excellent views. I like the idea of eventually picking up a UHC, and Oiii, and being able to use them instantly.
Any thoughts or opinions would be greatly appreciated. Thanks!
Edit: I'm not sure about the barlowed increments, earthwin has them listed under binoviewer for single EP mode, but not listed under the single EP system.
Edited by Promentory, 12 October 2019 - 07:05 AM.