Looking for an 8-9mm eyepiece for my Astroscan (a rich field, 4 1/8, f/4.24 scope).
Small, lightweight eyepieces work well in it. I need ones with good eye relief as I observe with glasses.
I used to own an 8.5mm Pentax XF, which was superb in the 'Scan. I even confirmed that yesterday reading through old observing notes and eyepiece comparisons. Should never have sold it!
So, I'm tempted to buy one again. However, I also own 18mm and 12mm Meade HD-60s, which I like, so I started considering the 9mm in that series.
The XF costs $130 new; the 9mm, $80.
Any thoughts about what I'd gain or lose by going for the less expensive HD-60?
Any other suggestions?
I used to own a 9mm Expanse — wonderful eyepiece, wide field and pretty sharp, but eye positioning with it was too tricky, with blackouts.
An 8mm Radian worked well in the 'Scan, too, slightly better on larger star clusters than the XF, slightly poorer on nebulae. But it's bigger and heavier and the Astroscan has no set screw and can rotate, posing a risk of tossing an expensive eyepiece to the ground!
The 8mm Starguider's a possibility, but the listed eye relief and reports suggest it's a cut below the 9mm HD-60. But it would be less than half the cost of the 8.5mm XF.
Small and low-cost are appealing!