Chroma Filters OIII 3nm 2" (66702)

The narrowband OIII 3nm filter is designed for astrophotography and nebula observation. It allows a narrow 3nm bandwidth of light centered on the 500.7nm wavelength, corresponding to OIII emission lines, while blocking all other light. This filter enhances contrast and detail, making it ideal for observing planetary nebulae, supernova remnants, and other deep-sky objects. Additionally, it helps reduce the effects of light pollution, ensuring clearer and more detailed images.

Specifications:

Capacity:

• Connection (to the Telescope): 2"

• Frame: 2"

• Mount Material: Aluminum

• Central Wavelength (nm): 500.7

• Half-Value Width (nm): 3

General:

• Type: Filters

• Type of Build: Line Filter

Area of Application:

• Useful for Photographs: Yes

• Planetary Nebulae: Yes

• Supernova Remains: Yes

• Anti Light-Pollution: Yes