Details
Description
These filters are in good used condition
Details of filters:
Dark Blue Filter
- 435 nm Dark blue bandpass filter. Filter for visual and photographic planetary observations
- Better detection of phase design of Venus
- The violet clearing on Mars can be seen better
- To observe the great Red Spot on Jupiter, enhances the contrast between the belts and zones on Saturn
Light Blue Filter
- 470nm Light blue bandpass filter. Filter for visual and photographic planetary observations
- To observe high clouds on Mars, enhances the contrast of hazes on terminator of Mars (Violet Klarglasing)
- Displays reddish structures darker, therefore the ideal filter for observing the large red spot on Jupiter - also shows details in Saturn Ring better
- To monitor structures in the atmosphere of Venus, also highlights the fine details in gas tails of comets
Green Filter
- Green bandpass filter 500nm. Provides the sharpest images with achromatic and semi-apo refractors (eg double star observations)
- Improves the visibility of CO² hoarfrost and ground fog on Mars
- Increases contrast between red and blue regions in Jupiter and Saturn
- Displays on the moon the best contrast in radiation craters Tyco, Copernicus and Kepler
Yellow Filter
- 495nm Yellow long pass filter. Suppresses the secondary spectrum (blue portion) with achromatic and semi-apo refractors (image sharpness is increased)
- The contrasts of lunar and Martian surface increased
- The filter also enhances the contrast between the bands and zones of Jupiter clouds
- With larger instruments from 8 "opening can be seen on Saturn Details.
Orange Filter
- 570nm Orangener long pass filter. Contrast enhancement in lunar and planetary observations at dusk
- Improves the detection of dark areas on Mars and penetrates the haze of the Martian atmosphere
- Shows more details in the cloud bands of Jupiter and Saturn
- ideally suited to daily observations of the moon, Mercury and Venus
Red Filter
- 610nm Red long-pass filter. Red filter with a steep absorption edge. Filters the H-alpha line from the visible spectrum from
- Blue and blue-green light is almost completely blocked, thereby increase contrasts between the light areas and the dark bands on Jupiter and Saturn
- The most interesting filters for observing the polar caps of Mars
- An optimum filter for daily observation of all planets