Thanks for your reply Allan. I wonder; what is it in particular that makes the difference with these more expensive ep's? For example: I have an Orion Edge-On planetary EP (6mm) and would have to say that it is quite superior than, say, my 9mm Bintel Plossl (ignoring the power difference obviously) due to the 20mm eye relief (a VERY comfortable EP to use) and also when I look at Jupiter (for eg) there is no "funny colour" at the edge of the planet when viewing, it is uniform. Cloud belts are clearly defined and the red spot is obvious (once I "trained" my eye to see it!)...I can also make out moon transits as well; some nights with clarity even using a 2 x barlow! So, for arguments sake, I buy myself a Delos and look at the same planet on the same night - what would be the visible difference? (I realise that an exact answer isn't really possible, unless you (or someone) owns both types of EP's...
But "ballpark wisdom" will do in this case
