Visual Astronomy Filters

When observing the moon or planets, a lot of the time there is just too much light! A-Star Telescope carries the Antares 13% and 25% (ND) neutral density polarizing filters to cut the brightness down to size. Available also for 2" eyepieces. Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lunar-planetary observing. Can be used stacked with colour filters. The ND13 transmits 13% and threads into all 1.25" accessories. NOT FOR SOLAR VIEWING

When observing the moon or planets, a lot of the time there is just too much light! A-Star Telescope carries the Antares 13% and 25% (ND) neutral density polarizing filters to cut the brightness down to size. Available also for 2" eyepieces. Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lunar-planetary observing. Can be used stacked with colour filters. The ND25 transmits 25% and threads into all 1.25" accessories. NOT FOR SOLAR VIEWING.  

Our 1.25" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapour, and both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow). Description The ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved. The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire...

The distinction you'll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control processes each company does so well. All the materials are sourced in Germany. Each filter is: optically tested by TeleVue in high power-space to ensure no image degradation, tested by Astronomik on a spectrograph to ensure the coating meets design specifications, mechanically tested for fit, cosmetically inspected for pinholes, digs, and sleeks and serialized, all to insure customer satisfaction. All filters are backed with a 10-year warranty against manufacturing defects. Description The Nebustar filter is a unique narrowband design specifically...

When observing the moon or planets, a lot of the time there is just too much light! All-Star Telescope carries the Antares 13% neutral density (ND) polarizing filter for two inch eyepieces to cut the brightness down to size.   Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lunar-planetary observing. Can be used stacked with color filters. The 2ND13 transmits 13% and threads into all 2" accessories. NOT FOR SOLAR VIEWING.  

The Celestron 1.25” Eyepiece and Filter Kit is a great way to expand the functionality and enjoyment of your telescope. Description Inside the metal, foam-lined carry case you’ll find these accessories: 32mm Plossl Eyepiece - 1.25”17mm Plossl Eyepiece - 1.25”13mm Plossl Eyepiece - 1.25”8mm Plossl Eyepiece - 1.25”6mm Plossl Eyepiece - 1.25”2X Barlow Lens - 1.25”#80A Blue Filter - 1.25”#58 Green Filter - 1.25”#56 Light Green Filter - 1.25”#25 Red Filter - 1.25”#21 Orange Filter - 1.25”#12 Yellow Filter - 1.25”Moon Filter - 1.25” Eyepieces - All five Plossl eyepieces can be used in any telescope with a 1.25” focuser....

Our Moon is the most popular object to observe with a telescope. It’s an obvious target that’s easy to locate and full of exciting geographical features to explore. Moon filters enhance lunar viewing by cutting down on the Moon’s bright glare, improving contrast and making faint details easier to observe. Amateur astronomers refer to Moon filters as “sunglasses for the Moon” because they provide a more comfortable view and reduce eye fatigue. Description This Moon Filter Set contains all the filters you will ever need to observe the Moon during its various phases. The set allows you to choose the...

When you want to selectively reduce the brightness of celestial objects for a customized view, the Variable Polarizing Filter is the perfect choice. Unlike regular Moon Filters and Neutral Density Filters, the level of brightness can be reduced to just 1% or as much as 40%. To make the adjustment, simply rotate the filter’s lower ring and the image gets brighter or dimmer. Description This filter does not alter the colour of the object you’re observing, making it a great choice for astroimaging, especially when imaging the surface of the Moon. By reducing the brightness, lunar details become more pronounced...

Our 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapour, and both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow). Description The ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved. The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire...

Colour filters enhance planetary imaging. Every refractive system, (lenses, correctors, eyepieces etc.) produce Chromatic Focal Shift: The different colours focus on different planes. By isolating one colour more detail will become apparent. Always use a contrasting colour to what you are observing; brightness is not an issue with planets. Set(4) 2" Filters 2-#11,21,80A,ND25

Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lunar-planetary observing. Can be used stacked with colour filters. The 2ND25 transmits 25% and threads into all 2" accessories. 

The distinction you'll find with Bandmate filters is their consistency, achieved by keeping control of the manufacturing and quality control processes each company does so well. All the materials are sourced in Germany. Each filter is: optically tested by TeleVue in high power-space to ensure no image degradation, tested by Astronomik on a spectrograph to ensure the coating meets design specifications, mechanically tested for fit, cosmetically inspected for pinholes, digs, and sleeks and serialized, all to insure customer satisfaction. All filters are backed with a 10-year warranty against manufacturing defects. Description The Nebustar filter is a unique narrowband design specifically...