Received my vixen Hr 3.4mm last week, unfortunately haven't had a chance to use it as yet, Friday night here looks to be a cracker though.
The hr 2.4mm is a very sharp and has good contrast so hopefully the 3.4mm performs as well!
Usability against my other "planetary" eyepieces is very good (atmosphere conditions permitting) and I found that it is actually more comfortable and easier to use than my 9mm Tak ortho. Go figure.
Eye relief measures only 7mm in the ortho!
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