Baader Planetarium Double Polarizing Filters
Baader Planetarium Double Polarizing Filters
Filter Size
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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 Coating® 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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