eBay
  • Daily Deals
  • Sell
  • Customer Support

Reviews & Guides

Sort by:

10 products found for

sirius

 in

Filters

Filter: Sirius Optics MV20 (MV20-1.25) 32 mm Filter The MV20 filter is a variation of the Sirius MV1 Minus Violet filter. The MV20 filter was designed with a more neutral appearance in mind. The mid-priced achromatic refractors would do well with this filter.The MV20 is still very aggressive in its...
Sirius Optics CE1 (CE1-2INCH) FilterThe Sirius Optics CE1 filter acts as a Light Pollution Reduction (LPR) filter. However, because it differs from other manufacturers' offerings to such an extent, it should not simply be called an LPR filter.Other LPR filters, currently available on...
Sirius Optics NPC (NPC-1.25) FilterThe NPC filter is designed primarily to reduce the unfocused violet halo seen through common refractors around bright objects. It utilizes Neodymium glass as the basic substrate. Neodymium is a rare-earth metal with unusual spectral properties when...
Filter: Sirius Optics MARS Filter This filter was designed with Mars in mind, but will find uses elsewhere as well.Mars has reddish disks with dark blue and green markings. This filter emphasizes these two spectral regions by rejecting the very dominant yellow and greenish-yellow...
Sirius Optics NIR1 (NIR1-1.25) FilterThe Sirius Optics NIR1 filter is designed for use with Charged-Couple Device (CCD) cameras and modified web-cams. This filter consists of a multi-layer interference coating deposited on to high-grade optical glass. It is mounted in a standard 1.25"...
Filter: Sirius Optics MV1 (MV1-1.25) 32 mm Filter The Sirius Optics MV1 filter is a specialized corrective filter that greatly reduces the color fringing of blue-violet light. This halo effect is most visible in low cost achromatic refractor telescopes. Use of the MV1 eyepiece filter provides a cost...
Sirius Optics CE1 (CE1-1.25) FilterThe Sirius Optics CE1 filter acts as a Light Pollution Reduction (LPR) filter. However, because it differs from other manufacturers' offerings to such an extent, it should not simply be called an LPR filter.Other LPR filters, currently available on...
Sirius Optics VFS FilterThe Sirius Optics VFS filter is built to a revolutionary design. It can be adjusted to become a Nebula, Contrast or a Broad Band Ha Filter. This filter shows three peaks of high transmission, which can vary up to 200 nm. There is strong rejection...
Sirius Optics NEB1 (NEB1-1.25) FilterThe Sirius Optics NEB1 filter greatly reduces the effects of light pollution, as well as improving contrast and visibility of emission nebulae. As a result, stellar objects will lose some intensity. The functionality of this filter covers the...
Filter: Sirius Optics MV20 (MV20-2INCH) 51 mm Filter The MV20 filter is a variation of the Sirius MV1 Minus Violet filter. The MV20 filter was designed with a more neutral appearance in mind. The mid-priced achromatic refractors would do well with this filter.The MV20 is still very aggressive in its...
Page 1 of 1