Product Specifications:

* Filter Type: Narrowband
* Wavelength Range: 486nm +/- 3nm
* Transmission: >90%
* Substrate Thickness: 1.0mm
* Surface Quality: 60/40
* Blocking: >99.9%

Benefits:

* Blocks out unwanted light pollution, allowing faint objects to be observed more clearly
* Improves the contrast and clarity of nebulae, making them easier to identify and study
* Provides a more immersive and enjoyable viewing experience for amateur astronomers
* Enhances the visibility of specific emission lines, such as the H-alpha and O-III lines, which are common in nebulae
* Allows for more precise observation of the structure and morphology of nebulae

Uses:

* Observing emission nebulae
* Planetary nebulae
* Supernova remnants
* Galaxies
* Other faint celestial objects

Additional Features:

* Made of high-quality optical glass for clarity and durability
* Precision-coated to ensure consistent performance
* Packaged in a protective case for storage and transportation

Compared to standard eyepiece filters, the 0.965″ Nebula Filter Standard offers superior light pollution reduction and contrast enhancement, making it an ideal choice for observing deep-sky objects under challenging light conditions.