Baader Colour Filter Light Blue 1¼" 470 nm
Light Blue 470nm bandpass filter.
For visual and photographic planetary observations.
To observe high clouds on Mars, enhances contrast of hazes on terminator of Mars (Violet Clearing).
Displays reddish structures darker, ideal for observing the red spot on Jupiter. Also shows Saturn rings better.
To monitor the structures in the atmosphere of Venus.
Highlights the fine details in gas tails produced by comets.
Multi-coated for max contrast – no reflections, scatter or dimming.
Planeoptically polished to within 30 seconds of arc for a sharp image at high magnification with non-ageing sealed coating edges.
Both sides 7-layer AR coating with only 0.25% residual reflection per surface. This is the most antireflective that has ever been undertaken with color filters.
jest polecany do monitorowania chmur na wenus jednak :
To monitor the structures in the atmosphere of Venus.
Tamten droższy filtr na razie mi odpada ze względu na małą aperture póki co - natomiast ktoś używał tutaj już wspomnianego w mniejszych aperturach jak moja?