High quality coatings

The coatings are unique - only in lateral viewing one can see that glass lenses are installed at all. These are really one of the best coatings we know.

Eyepiece locking and micro focusing in one part:

The clou is the "Click lock" eyepiece holder by Baader. When an eyepiece is put in directly, one has a 2x Barlow lens with the possibility to focus the eyepiece with a turnable ring (a good idea for SC systems who tend to have mirror shifting).

When the focusing ring at the eyepiece holder is screwed off, a second T-2 thread appears. It accepts T-2 extension tubes. So it is possible to use this Barlow lens (with projection eyepiece in place!) as a premium quality projective for high magnification ratios.

Nearly unlimited application possibilites

Varation opportunities are nearly unlimited - from 2x to 4x, this Barlow lens covers every visual and photographical tasks possible. It is only surpassed by the Baader Fluorit Flatfield Converter when the magnification ratio exceeds 4x.

Only limited stock quantity!

Because oft the small amount of optical elements available for this Barlow, we recommend to order early! On the second-hand market, there are already paid collector's prices for Zeiss astronomical accessories.