Alpine Astronomical Baader 3.0 Neutral Density Filter (2")
Alpine Astronomical FND3-2 Overview
Use the Alpine Astronomical Baader 3.0 Neutral Density Filter to reduce the amount of light coming into your eye during lunar observation and improve the view and contrast. The lens surfaces are fully multi-coated with Phantom Group seven-layer optical coatings. This maximizes light transmission across the entire visual spectrum, stepping down the light throughput while maintaining color-neutral views without reflections, ghosting, or stray interference light.
Its housing is made to fit most 2" eyepieces and has female threads for stacking it with other ND and colored filters to further improve views when observing planets and other objects. This iteration of the ND filter line has an optical density of 3.0, with 0.1% transmission and a reduction factor of 1000ļæ½making it ideal for viewing and photographing the moon when it's full and very bright.
The filter can also improve solar viewing, but only as a secondary pre-filter stacked with a primary dedicated solar filter. Failure to use a dedicated solar filter may result in permanent eye damage up to and including blindness.
In the Box
- Alpine Astronomical Baader 3.0 Neutral Density Filter (2")
- Plastic Carrying Case
- Limited 2-Year Manufacturer Warranty
Alpine Astronomical FND3-2 Specs
| Type |
Neutral density
|
| Size |
2"
|
| Optical Density |
3.0
|
| Transmission |
0.1%
|
| IR Reduction Filter |
1000
|
| Multi-Coated |
yes
|
| Application |
Primary lunar
Pre-filter for solar viewing |
| Weight |
2.5 oz / 72.0 g
|
| Package Weight |
0.16 lb
|
| Box Dimensions (LxWxH) |
3.85 x 3 x 0.95"
|
All product and company names are trademarksā¢ or registeredĀ® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Original: $168.67
-70%$168.67
$50.60More Images
Alpine Astronomical Baader 3.0 Neutral Density Filter (2")
Alpine Astronomical FND3-2 Overview
Use the Alpine Astronomical Baader 3.0 Neutral Density Filter to reduce the amount of light coming into your eye during lunar observation and improve the view and contrast. The lens surfaces are fully multi-coated with Phantom Group seven-layer optical coatings. This maximizes light transmission across the entire visual spectrum, stepping down the light throughput while maintaining color-neutral views without reflections, ghosting, or stray interference light.
Its housing is made to fit most 2" eyepieces and has female threads for stacking it with other ND and colored filters to further improve views when observing planets and other objects. This iteration of the ND filter line has an optical density of 3.0, with 0.1% transmission and a reduction factor of 1000ļæ½making it ideal for viewing and photographing the moon when it's full and very bright.
The filter can also improve solar viewing, but only as a secondary pre-filter stacked with a primary dedicated solar filter. Failure to use a dedicated solar filter may result in permanent eye damage up to and including blindness.
In the Box
- Alpine Astronomical Baader 3.0 Neutral Density Filter (2")
- Plastic Carrying Case
- Limited 2-Year Manufacturer Warranty
Alpine Astronomical FND3-2 Specs
| Type |
Neutral density
|
| Size |
2"
|
| Optical Density |
3.0
|
| Transmission |
0.1%
|
| IR Reduction Filter |
1000
|
| Multi-Coated |
yes
|
| Application |
Primary lunar
Pre-filter for solar viewing |
| Weight |
2.5 oz / 72.0 g
|
| Package Weight |
0.16 lb
|
| Box Dimensions (LxWxH) |
3.85 x 3 x 0.95"
|
All product and company names are trademarksā¢ or registeredĀ® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Alpine Astronomical FND3-2 Overview
Use the Alpine Astronomical Baader 3.0 Neutral Density Filter to reduce the amount of light coming into your eye during lunar observation and improve the view and contrast. The lens surfaces are fully multi-coated with Phantom Group seven-layer optical coatings. This maximizes light transmission across the entire visual spectrum, stepping down the light throughput while maintaining color-neutral views without reflections, ghosting, or stray interference light.
Its housing is made to fit most 2" eyepieces and has female threads for stacking it with other ND and colored filters to further improve views when observing planets and other objects. This iteration of the ND filter line has an optical density of 3.0, with 0.1% transmission and a reduction factor of 1000ļæ½making it ideal for viewing and photographing the moon when it's full and very bright.
The filter can also improve solar viewing, but only as a secondary pre-filter stacked with a primary dedicated solar filter. Failure to use a dedicated solar filter may result in permanent eye damage up to and including blindness.
In the Box
- Alpine Astronomical Baader 3.0 Neutral Density Filter (2")
- Plastic Carrying Case
- Limited 2-Year Manufacturer Warranty
Alpine Astronomical FND3-2 Specs
| Type |
Neutral density
|
| Size |
2"
|
| Optical Density |
3.0
|
| Transmission |
0.1%
|
| IR Reduction Filter |
1000
|
| Multi-Coated |
yes
|
| Application |
Primary lunar
Pre-filter for solar viewing |
| Weight |
2.5 oz / 72.0 g
|
| Package Weight |
0.16 lb
|
| Box Dimensions (LxWxH) |
3.85 x 3 x 0.95"
|
All product and company names are trademarksā¢ or registeredĀ® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
