Hi,
Selling a Baader Planetarium Kontrast Booster 1.25" Filter # 2458360.
This is optically polished and works with Achromats and other telescopes.
I used it in a short Achromat to reduce the chromatic spectrum on planets.
It is in very good condition.
New price is Euro 60.- + shipping, selling for AU$ 70.- including postage within Australia or nearest offer.
Please PM me if interested, thanks.
