Baader Planetarium ND Filter OD 0.9 2 2458322

Code: 2458322

Baader Planetarium ND Filter OD 0.9 2 2458322

2inch ND Filter OD 0.9

Neutral Density (Grey) Filter 2", multi-coated / OD 0.9 T=12.5% (optically polished)

For perfect energy management during Lunar and Solar observion. NO reflections. NO stray light. NO ghosting.

Planoptically polished with Phantom Coating Group Multi-coatings.


£0.00 £69.00
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Special Filter Cell:  Baader's special filter cell design offers unique features that enhance their reliability and usability.  Though difficult to produce, the ultra-thin filter cell results in the maximum possible clear aperture, in order to minimize vignetting (1¼" Filter clear aperture is 27mm!, 2" Filter aperture is 45mm).  The special threading has been designed to fit the wide variety of eyepieces and accessories.

Freedom from Ghosts and Halos:  Baader Planetarium's filters have always been halo and ghost free.  Baader balances each dielectric coating stack to avoid the ghosts and annoying halos that plague other mfgr's filters. 

Stackability:  Unlike most other filters, Baader Planetarium  filters are truly designed to be stacked and combined.  This is possible due to the high optical quality and highly efficient anti-reflection multicoatings.  The ability to combine filters opens up many interesting possibilities, permitting  unique spectral characteristics unachievable with any single filter.


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