Askar Astronomical

Askar C1 Duo-band Ha+OIII filter

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Your Price: $174.99
SKU:
Colourmagic-C1
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Product Overview

Colour Magic C1 Duo-band filter (Hα+OIII) has a high transmittance of over 90% at its center wavelength (500.7nm and 656.6nm). It can effectively improve the quality of the image by making the sky background of the image darker while maximizing the contrast throughout the image, enhancing the contrast of your pictures, and making it easier to display the details of the stars. In areas with very serious light pollution, this filter can also selectively filter light pollution and cluttered signals through the emission lights of the nebula to achieve the ideal shooting effect.

 

Specifications

C1 Duo-band Filter (OIII & Ha) 2”

FWHM

 OIII:35nm±5nm/Ha:15nm±3nm

CWL

500.7nm & 656.6nm

Peak transmittance

90%

Thickness

2 ± 0.05mm

Barrier property

OD3 @ 200-1000nm

Surface finish

60/40

 

C Filters VS D Filters

长友气体

C Transmittance

 

长友气体

Video

 

Images

长友气体

IC 1848 Soul Nebula(HOO)  |  ASKAR 103APO+0.6x Full-frame Reducer+ASI 2600MC Pro  |  Colour Magic C1 Duo-band Filter (Hα+OIII)

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