So they work well at f13-15 and also well at f5.5 ,, not many eyepieces can lay claim to that , even some of the big dollar ones have trouble sometimes with this ,, food for thought aye, Renato ?
On the other hand I have a 6mm no name Ortho in .965 size and it lives in a .965-1.25 inch adaptor made from a plastic 3x barlow ( YUCK !!
) anyway this eyepiece shows the planets like no other eyepiece I own , true it is spectacular , even tho its like looking down a straw ,
.
But no its an excellent planetary eyepiece , very jewel like in feel .
Brian.
Quote:
Originally Posted by Renato1
Hi Brian,
Thanks for that - you are getting good performance with the 9mm GSO in your Tak, and I am happy with it in my Mak. They must have something going for them.
I remember when S&T did their evaluation of the then available Plossls years ago, and they rated them against four or five criteria. Televue were the best against each criterion, but most of the others scored reasonably well too - there weren't any they rated as poor.
Regards,
Renato
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