This filter is surplus to my requirements. The item number is 2458399 just in case you're looking it up. I purchased it new when I ordered my last scope, but never actually used it. It's been opened for inspection and is in mint condition.
One of the many blurbs for this filter is as follows:
"Baader's newest addition for Achromat owners. The Semi-APO works like it's name implies - delivering an amazingly neutral view, while cutting most of the annoying and contrast-robbing violet fringe that plagues all achromats. The Semi-APO filter combines a stronger Fringe Killer coating formula with the Moon & Skyglow Neodymium substrate. The result is similar performance to the Fringe Killer + Moon&Skyglow combination, but with a slightly stronger violet cut"
Price: $110.00 shipped via courier Australia Wide (I use Direct Freight Express)
