Baader Neutral Density Filter ND-0.9 12.5% Transmission - 2"
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Important Note About Torn Baader Filter Seals:
Recently, Baader started applying a new filter label on many filters that goes over the edge of the case and also acts as a seal. Unfortunately, these labels rip far too easily during transport, giving the false appearance that the filter case has been previously opened. Many filters we now get from Baader arrive like the ones shown in the photos below, and many others will rip en route from us to you. Rest assured that ALL filters we ship to you are brand new and unopened as received from Baader, whether the seal is intact or partially/completely ripped.
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Baader has agreed to revert to their old design of 2-piece labels, but until they use up their current labels, we will continue to have this problem for a while and you might also get a mix of different filter label types. Thank you for your understanding.
For the discriminating observer, Baader offers a line of premium Neutral Density filters. These filters are planoptically polished with Baader's famous Phantom Coating Group Multicoatings. The result - no reflections, no straylight, and no ghosting, offering performance unlike any other competing filter on the market today.
This 2" filter has a neutral density of 0.9, so its transmission factor is 12.5%. It has a 2" male filter thread (M48)on one side and 2" female filter thread on the other side, so it can be stacked with additional filters. Cell thickness = 8.25mm (0.32"); Clear filter aperture = 45.8mm (1.80").
Neutral density filters are excellent filters to reduce the overall brightness of an image to cut down glare while viewing bright astronomical objects through a telescope. They are useful for splitting binary systems, comfortably observing the moon, or stacking with other planetary filters. ND filters retain true color balance of the objects being observed since all wavelengths are transmitted uniformly over the entire spectrum.
Other Information
- Country of Manufacture: Germany
For the discriminating observer, Baader offers a line of premium Neutral Density filters. These filters are planoptically polished with Baader's famous Phantom Coating Group Multicoatings. The result - no reflections, no straylight, and no ghosting, offering performance unlike any other competing filter on the market today.
This 2" filter has a neutral density of 0.9, so its transmission factor is 12.5%. It has a 2" male filter thread (M48)on one side and 2" female filter thread on the other side, so it can be stacked with additional filters. Cell thickness = 8.25mm (0.32"); Clear filter aperture = 45.8mm (1.80").
Neutral density filters are excellent filters to reduce the overall brightness of an image to cut down glare while viewing bright astronomical objects through a telescope. They are useful for splitting binary systems, comfortably observing the moon, or stacking with other planetary filters. ND filters retain true color balance of the objects being observed since all wavelengths are transmitted uniformly over the entire spectrum.
Important Note About Torn Baader Filter Seals:
Recently, Baader started applying a new filter label on many filters that goes over the edge of the case and also acts as a seal. Unfortunately, these labels rip far too easily during transport, giving the false appearance that the filter case has been previously opened. Many filters we now get from Baader arrive like the ones shown in the photos below, and many others will rip en route from us to you. Rest assured that ALL filters we ship to you are brand new and unopened as received from Baader, whether the seal is intact or partially/completely ripped.
|
|
Baader has agreed to revert to their old design of 2-piece labels, but until they use up their current labels, we will continue to have this problem for a while and you might also get a mix of different filter label types. Thank you for your understanding.
For the discriminating observer, Baader offers a line of premium Neutral Density filters. These filters are planoptically polished with Baader's famous Phantom Coating Group Multicoatings. The result - no reflections, no straylight, and no ghosting, offering performance unlike any other competing filter on the market today.
This 2" filter has a neutral density of 0.9, so its transmission factor is 12.5%. It has a 2" male filter thread (M48)on one side and 2" female filter thread on the other side, so it can be stacked with additional filters. Cell thickness = 8.25mm (0.32"); Clear filter aperture = 45.8mm (1.80").
Neutral density filters are excellent filters to reduce the overall brightness of an image to cut down glare while viewing bright astronomical objects through a telescope. They are useful for splitting binary systems, comfortably observing the moon, or stacking with other planetary filters. ND filters retain true color balance of the objects being observed since all wavelengths are transmitted uniformly over the entire spectrum.
Other Information
- Country of Manufacture: Germany
Baader Neutral Density Filter ND-0.9 12.5% Transmission - 2"