Optical Accessories

Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...

Our L2P filters are designed to be used the same way that you would use a regular Astrodon Luminance filter, either by itself or as part of a LRGB ...

Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets have revolutionized CCD imaging. Their popularity is due to their ease-of-use, high optical thr...

Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 I-Series Tru-Balance F...

Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 E-Series Tru-Balance F...

What about NII and H-a?This is a bit complicated. It is not well known that most H-a filters pass both H-a and NII. H-a emits at 656.3 nm and NII e...

This Astrodon Near IR-Luminance filter blocks below 700nm and transmits at least 97% of light above 700nm all the way to the limit of the Si detect...

The next filter to complement your LRGBH-a set is an oxygen filter. OIII (“ohthree”) emits light near 500 nm and is a blue-green- or teal-colored f...

The next filter to complement your LRGBH-a set is an oxygen filter. OIII (“ohthree”) emits light near 500 nm and is a blue-green- or teal-colored f...

This Red Continuum filter (645 nm, 5 nm FWHM) produces a star map without the H-a or SII emission in order to subtract stars from emission images. ...

Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 E-Series Tru-Balance F...

Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 I-Series Tru-Balance F...

If you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next...

If you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next...

50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95% (>90% for u’) <=0.03%Tabs out-of-band 300 – ...

50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95% (>90% for u’) <=0.03%Tabs out-of-band 300 – ...

50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95% (>90% for u’) <=0.03%Tabs out-of-band 300 – ...

50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95% (>90% for u’) <=0.03%Tabs out-of-band 300 – ...

50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95% (>90% for u’) <=0.03%Tabs out-of-band 300 – ...

50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95% (>90% for u’) <=0.03%Tabs out-of-band 300 – ...

50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95% (>90% for u’) <=0.03%Tabs out-of-band 300 – ...