BAADER PLANETARIUM
Especially designed to improve the beginners telescopes – to provide a professional replacement for the simple "dark green" Moon & Solar-Filters made of "raw polished" glass.
Available Upon Request
This category includes products which are not kept in stock and for some reasons -which don’t depend on our company- can’t be available in less than 14 days. Specifically, this category includes new products thar are pre-advertised by manufacturers, however they are not available in Greece yet. You can pre-order these items with a special preferential price. If the estimated arrival date of this product is already known, then the estimated date will be written above the indication “AVAILABLE UPON REQUEST”.
CONTRAST BOOSTER FILTER 2''
Planeoptically Polished and Phantom Group Coated
Discover your telescope anew – with the Baader Contrast Booster®:
A unique filter for many different astronomical tasks – incomparable in acuity to combinations of generic colour filters, made of raw polished glass – where surface inaccuracy adds up in the optical wave front to an unbearable degree. Especially designed to improve the beginners telescopes – to provide a professional replacement for the simple "dark green" Moon & Solar-Filters made of "raw polished" glass.
For Solar Observation use only in combination with Baader AstroSolar Safety Film!
Features:
The transmission line of Baader Contrast Booster®
The transmission curve shows the light transmittance in percent versus the light wavelength in nanometres. Note the high transmission for visual observations of H-alpha (98%), H-beta (87%) and OIII (82%).
In a light polluted town or city mercury and sodium vapour street lights emit at 435nm and between 570-590nm. Here the filter transmission is between 0.3 and 3%.
The Baader Contrast Booster with integrated UV / IR cut filter is both an optimal filter for visual observations as well as for CCD images from light-polluted big city and metropolitan area.
Aperture (mm) | 50.8 |
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