University Optics 2.8x Klee barlow for sale. Used, (less than 4 months old) but in excellant condition. Here is the description from the U.O. website;
This product started the trend to compact 3-element Barlows. Designed by Heinz Klee, it is well corrected for spherical aberration, longitudinal and lateral color; and is the only Barlow we know of that tends to correct astigmatism. Differing from all other units on the market, it features a fully air-spaced lens system. The six air to-glass surfaces are multicoated for 96% transmission. Talk about lightweight and compact - this new 1997 model is only 2.46" tall. It is the lightest Barlow in the world. Its unique size allows you to use it ahead of or on the outlet tube of star diagonals. The Klee has generated more favorable comment than any other product we have offered in the past 35 years! Many claim it corrects coma in their fast Dobsonians. Yet others claim fantastic results in f/20 systems. The 11/4" format features 2.8X magnification factor. Thumbscrew holds your eyepiece secure. The one and only "perfect" Barlow for your scope. Made in Japan
They retail new for $79.00 plus shipping, I will let it go for $60.00 shipped. Paypal / Money Orders accepted. I can provide pic if your interested.
Thank you for taking a look,