Baader Planetarium G-CCD Filter 31.8 mm (Planoptically Polished)

Baader 1¼" CCD Filter Green Anti-reflection RGB filter (red/green/blue) with extremely high transmission of the respective colour channel, thus simultaneously reducing stray light and reflections to a previously unknown level Balanced RGB design allows shooting with the same exposure time - extremely important for automated continuous shooting The only filters with homofocal plan-polished substrates. Each individual filter is finely polished to 1/4 wavelength Box contents: Baader G-CCD 1 1/4 inch filter, planoptic polie