I have a B collection of parfocal eyepieces for quick, casual viewing. There are Vixen NPLs, unbranded Plossls, an old Meade WA and a few Tak & Fujiyama orthos for when the session becomes more intense. (I have mainly quality refractors around F7).
I find the Vixen 15mm & the unbranded 20mm to be the weak links in the collection, so would like to replace them with an 18mm EP. From what people are saying, an 18mm Paradigm may be a very useful addition. However, I only want it if it is parfocal with the other Eps.
Can anybody advise me if the Paradigms Eps are parfocal with the Eps in my B collection or any suggestions regarding EPs, which will be parfocal?