Roger,
I can highly recommend the Siebert Optics "Ultra Series" this is their top of the line equipment.
They have a 7mm & 9mm.
I have a 17mm + the ultra barlow and they've given me the best views I've ever seen.
Harry Siebert is a very good fellow to deal with, and del is very quick.
Check out the website
www.siebertoptics.com 