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Old 05-11-2007, 03:26 PM
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Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by sejanus View Post
So the 16" LB is now pretty much working. I still need to collimate it properly but that problem is for another thread.

I'm a real eyepiece dummy and apart from reading the odd review on the 13mm Ethos which sounds great I am really quite clueless with what to buy.

My current eyepieces are ;

Televue 1.25" 32mm
Televue 1.25" 20mm
Televue 1.25" 11mm
Hyperion 1.25" 8mm - it says modular so I think this may fit into a 2" but am unsure and am not at home as I write this
Celestron junk 1.25" 40mm - I use it to locate alignment stars before switching to a higher power eyepiece
Meade 26mm 2" - came with the lightbridge, havent used yet.

So basically, what eyepieces would you recommend if you had a 16" 1800 odd mm scope and the above eyepieces already?

Out of the above, the only one I found that is really crisp is the 32mm. All the televues i bought from bintel a year ago and were all fairly cheap.
I would go for a 6mm Televue Radian to give you 300 power, which would be high enough for all but the most excellent seeing conditions. You could use a 2x Barlow to get 600 power.

Your comment about things not being crisp could be due to:
1. Faulty eyepiece---highly unlikely with Televue
2. Faulty mirror--possible, but unlikely
3. Poor collimation--This is the most likely. With an f4.5 scope you are never going to get crisp images unless your collimation is spot on, or you are using a low power
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