Baader Filters 2" neodymium Moon and Skyglow filter

Neodymium Moon and Sky-glow Filter with Built-in IR Blocker and PG-Coating

This neodymium filter serves as a selective contrast enhancer, crafted especially for reflecting telescopes. It effectively blocks specific regions in the visible spectrum, particularly targeting street lamp lighting and sky-glow caused by scattered light, alleviating the irritation caused by these sources.

Its selective blocking feature reduces glare without compromising the ability to discern important color and brightness differences. With a light transmission rate of over 95% in the selected spectral ranges, it ensures vivid views of celestial objects.

Designed to fit standard filter threads, it can be seamlessly combined with other filters, such as the plane-optical polished Baader IR cutting filter, to prevent blur caused by unfocused infrared light—essential for digital astrophotography.

Featuring plane-optical polished glass substrate doped with neodymium for color enhancement, and a 7-ply multi-layer hard coating with 'bullet-proof' dielectric IR blocking technology, this filter is resilient and scratch-resistant. Its ion beam-hardened coating ensures durability and allows for easy cleaning.

Noteworthy benefits include sharper star images when used with DSLR cameras due to the blocked IR spectrum, and no loss of sharpness even at magnifications above 200X, unlike flame-polished filter glasses.

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SPECIFICATIONS

Capacity:

Connection (to the telescope): 2"

Mount Material: Aluminium

Transmission: 95

Coating of Optical System: Multiple

Frame: 2"

General:

Type: Filters

Type of Build: Moon Filter

Area of Application:

Useful for Photographs: Yes

Anti Light-Pollution: Yes

Moon & Planets: Yes

Visually Useful: Yes