|For Sale |
|Status: Sold Advert Category: Filters Advert # 134333|
|Astronomik 2” OIII Filter |
The extremely narrow pass band of the two OIII lines brings a substantial contrast gain to these lines even under best observation conditions. On faint super nova remnants and faint planetary nebulae the Astronomik OIII filter will often make the difference as to whether the object can bee seen or not!
I purchased this filter and have not used it. Having a clear out of items I don’t use. This filter is in excellent condition with no marks or scratches. It is primarily a visual filter but can also be used for Astrophotography with the addition of an IR filter.
Posted on: 2018-02-08 16:53:53
Last Updated on: 2018-02-11 19:49:00
New or Repeat ad: New
Because this advert is archived, the contact info has been removed