Quote:
Originally Posted by niko
Seeking some advice from the visual dudes amongst us. If you had to choose between either the Baader Hyperion 8mm or the Pentax XL 7 eyepieces which one would you pick...?
I have the opportunity to get one of these and wonder, in your experience, which one you'd go for.
many thanks
Nick
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Hi Nick,
In regard to these 2 specific eyepieces (7mm Pentax XL and 8mm Baader Hyperion) when used in your particular scope, which I believe is a 12"/F5 Newtonian, the 7mm Pentax XL will be clearly superior, with or without a paracorr. Wavytone's advice was spot on in this case.
How do we define "clearly superior"? Well, lets just say that in that particular telescope the 7mm Pentax XL performs like the premium eyepiece it is; and the 8mm Baader Hyperion performs like the lower to mid priced eyepiece that it is and the differences in contrast, EOF correction, lateral colour and light throughput are noticeable. The differences would be less noticeable to a new observer.
Some other good options to consider at this focal length which are all superior IMO to the 8mm Baader Hyperion, are the 8mm Vixen LVW, a 2nd hand 8mm Televue Radian and the 8.5mm Pentax XF.
The 7mm Pentax XW and the 8mm TV Delos are both excellent but expensive and don't gain a lot over the 7mm Pentax XL, or the 8mm Vixen LVW, 8mm TV Radian or the 8.5mm Pentax XF.
Cheers,
John B