Hi,
Following on from some great advice here a few months back I bought a Dobsonion Skywatcher 200p and I've been having a great time viewing the night sky using the supplied eyepieces. I feel like I've developed a feel for what the standard eyepieces can and can't do now, and am ready to upgrade.
To start me off, I have ordered a Celestron 93230 8mm to 24mm which should hopefully arrive next week. I've read some mixed reviews about the eyepiece, specifically when using it at the max/min of the zoom range. But my thinking was that to start with, an eyepiece which is pretty much a 4 in 1 for a beginner like me is probably fine, and it'll save me continuously swapping pieces in the dark. If I find after some experimenting that I'm struggling with viewing at 10mm zoom or less I'll happily buy another dedicated eyepiece.
In addition to the eyepiece, I'd like to get a Barlow lens but I can't decide which one.
My gut feeling from the research I've done is that I should just buy a x2 as that'll pretty much see me to 8mm/2, so 250x magnification on my scope. I live in the Cheshire countryside and it's fairly dark, but I'm guessing I won't be able to do much with more than 250x magnification. To give you context on darkness, I've seen the milky way very faintly here once this winter but it's generally not visible.
The avant-garde idea I've had is to buy a x3 Barlow lens instead. That would see me get down to 8mm/3, which is pretty much 375x magnification (give or take a few decimal places). I know that realistically 375x is too much, but the zoom eyepiece with a Barlow x3 would give me flexibility to get further than 250x magnification should I be able to use it, e.g. if I zoomed to 11mm/3 I'd be getting 272x magnification. When I think about it mathematically, I feel like the x3 should do everything the x2 should do and more, but something is telling me that it's not as straight forward as I want to believe.
Any thoughts, experiences or advice will be gratefully received.
Thanks,
Mat