Brand: Baader Planetarium

Baader Planetarium Double Polarizing Filters

Brand: Baader Planetarium

Baader Planetarium Double Polarizing Filters

  • Baader 1 1/4" Double Polarizing Filter - Perfect for observing moon or planets, or for solar observations with AstroSolar Safety Film ND 5.0.
  • For 1 1/4" eyepieces, is inserted into the standard filter thread. One part of the filter cell is rotatable, so that you can adjust the brightness to the magnification of the eyepiece.
  • Both filters form a unit, to keep the filters perfectly aligned to each other - this double filter cannot be separated into to single filters. This way, the filter delivers high-contrast views even at high magnifications. Polarizing filters offer the highest flexibility; if you are looking for superior image quality, you should use regular Neutral Density Filter, where there are less glass surfaces in the light path.
  • Please note: Polarizing filters (and all other eyepiece filters) may never be used without an appropriate solar filter (Astrosolar front filter, Herschel Wedge).
Special Order
$130.95 CAD

Filter Size

1.25" 2"

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Special Order
$130.95 CAD

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How do I Special Order?
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Product Description

To screw into 1 1/4 or 2" eyepieces/threads. The two filters can be rotated against each other to always be able to achieve comfortable brightness level for moon observations, independent of moon phase. The Baader Double Polarizing Filter can also be used for solar observations in combination with an objective sun filter from Astro Solar Film.

The double polarizing filters in 1 1/4 or 2" can not be split into two parts, so you can't take one half as a single filter e.g. for a Herschel wedge. The reason for this is more stability and quality: If both housings could be separated, they may move or be tilted to each other, which could harm the image quality and cause reflections.

Note: Filter sizes are available/sold independently. This is NOT a filter set.

Specifications

Size Option 1.25 inch 2 inch
Manufacturer Baader Planetarium Baader Planetarium
SKU (#) 2408340 2408344
EAN Code 4047825012463 4047825022714
Net weight (kg) 0.01 0.03
Transmission Range Full Spectrum Full Spectrum
Filter Thickness (without cell) 2 mm 2 mm
AR-Coating Phantom CoatingĀ® Group, planeoptically polished
Special Features double polarizing filter for stepless brightness adjustment
Filter size 1.25 inch 2 inch
Filter Usage Lunar, Planetary, Solar, Specialty Lunar, Planetary, Solar, Specialty
Filter mounted Double mounted (LPFC 6mm) - total height 15mm
Type of Filter Neutral Density, Polarizing Neutral Density, Polarizing
Single or Set? Single Filter Single Filter
Filter shape Round Round

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