Hi there,
It is our third anniversary coming up and since the theme for it is glass, I thought a new eyepiece (or two) for the wife would be the perfect gift.
She has a 10" skywatcher dobsonian (1200mm focal length, 254mm app, f4.7) and loves to look at nebulas, clusters and would like to get into galaxies. Its a push-pull non-goto scope too. It has two eyepieces, a 25mm which pretty much lives in it, and a 10mm which she does not think much of. And a barlow lens.
Over the past week, I have been doing some research on eyepieces and my goodness, its not a simple subject! So many options to choose from, and so many varying opinions. I even made a spreadsheet that calculated fields of views, exit pupils and the magnifications that various eyepieces would give, thinking this would help, but alas. Then again I have been told I do overthink and over analyzie things.
What can you suggest as being a couple of good additions to her range that suit her viewing interests?
Budget wise, the Ethos series is out (despite being very impressive on paper).
Also, am I understanding that true field of view is sometimes the same for eyepieces of differing focal length and magnification? So an object will not only be more magnified but also show more of the surrounding sky? eg Nagler 17 with a true field of view of 1.2 and mag of 71 will show more of the sky than a 25mm plossl with 1.1 true field of view and mag of 48?
Sorry for the all the questions, while I do try and understand her hobby a lot of it goes over my head.
I appreciated any advice you can give me. Thanks all