Brand​

SVBONY​

Model​

SV220

Name​

Duo-Band OSC Filter​

Size​

2-Inch​

Substrate Thickness​

1.80mm​

Clear Aperture​

44mm​

Wavelength Range​

300-1100nm​

FWHM​

OIII (7nm) & HA (7nm) ​

Blocking​

OD5​

Peak transmittance​

500.7nm@T>90%; 656.3nm@T>94%​

Surface Quality​

​60/40 ​

Surface parallelism​

1/4λ​

Thread​

M48x0.75​

Single Thread​

Yes​

Net Weight​

12.5g / 0.44oz /0.027lb​

 

 

Dual Narrow bandwidth H-Alpha/O-III 7nm narrowband filter properly designed for astrophotography both in light polluted

Take color images without needing to combine images with multiple filters

Useful for imaging emission nebulae, planetary nebulae and supernova remnants

Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow

 

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  • Local pickups and combined shipping options are not provided at this time.

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