What is the main advantage of using the Optolong LRGB Filter Set?

The primary advantage is leveraging a sensitive monochrome camera to produce images with higher resolution and better color control than typical one-shot-color cameras. By capturing separate Luminance, Red, Green, and Blue channels, you can optimize exposure for each, process them individually to reduce noise, and combine them for a final image with maximum detail and accurate color.

Why is there a gap between the green and red filters in the Optolong set?

This gap is a specific design choice to block artificial light pollution. It targets the prominent sodium vapor lamp emission line at 589nm. By blocking this wavelength, the Optolong LRGB filters reduce skyglow and improve the color balance and separation between the red and green channels for more natural-looking results.

Are the Optolong LRGB filters parfocal?

They are designed to be nearly parfocal. All filters in the set are made with a 1.85mm thick substrate, which minimizes the amount of focus shift required when changing from one filter to another. This is a significant benefit for automated imaging sessions, as it reduces the need for constant refocusing routines.

How does the Optolong LRGB set perform on a galaxy like Andromeda (M31) from a suburban location?

This set is well-suited for imaging galaxies from light-polluted areas. The Luminance filter will capture the faint outer arms and dust lanes with maximum detail, while the targeted blocking of sodium light pollution in the RGB filters helps increase contrast and improve color saturation. You can achieve a deep, detailed image of M31 with a more natural color balance than you could with an unfiltered camera.

Can I use the Optolong LRGB filters for imaging Jupiter with a monochrome camera?

Yes, this set is excellent for high-resolution planetary imaging. Using a monochrome camera with these filters allows you to capture extremely sharp detail in each color channel. The Red filter will emphasize features in Jupiter's belts, while the Blue filter can highlight details in the zones and the Great Red Spot. Combining the channels gives you a vibrant, detailed final image.

Is it safe to use the Optolong LRGB filters for viewing the Sun?

ABSOLUTELY NOT. These filters are designed for night-sky imaging and provide no protection from harmful solar radiation. Attempting to view or image the Sun with these filters will cause instant and permanent eye damage and will destroy your camera sensor. Only use certified solar filters designed specifically for observing the Sun.

Ensemble de filtres Optolong LRGB

par Optolong

UGC OPT-LRGB-1.25

$249.00 - $359.00

$249.00

$249.00 - $359.00

$249.00

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Le jeu de filtres Optolong LRGB est conçu pour un contraste maximal et avec des gradients extrêmement élevés pour une différenciation claire des couleurs. Le jeu de filtres LRGB divise le spectre en ses composants rouge, vert, bleu et luminance.

RVB, parfocale : 1:1:1
Créez des images dans leurs vraies couleurs d'origine montrant une richesse de détails naturels;
Filtres passe-bande raides pour éliminer les interférences UV et IR ;
Inclut des filtres de luminance (coupe UV/IR), rouge, vert et bleu pour reproduire la couleur de l'étoile ;

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Ensemble de filtres Optolong LRGB

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