I've bought a 90mm Astroview refractor and I am enjoying learning to star walk. I have suburban light pollution of Bortle 7. I'm looking to upgrade the 25mm eyepiece for a better wide field view- ideally, an eyepiece which would make the background sky darker and bring out more stars if that's possible, with more contrast and sharpness in the images. I'm also interested in a wider-looking field, more immersive.
I'm looking at the BST Starguider 60 degree 25mm - I can get it for £45. Then there's the Explore Scientific 68 24mm - at £155, over three times the price. Beyond that are eyepieces like Tele Vue which are intriguing but look well beyond my price range.
Money is the issue - should I go for the BST - or wait and save up for something 3 times more expensive? Is it worth the bigger investment? For the price of one ES eyepiece, I could get 3 BSTs. Any advice from anyone who has used the eyepieces gratefully received!