A popular filter for the study of Jupiter’s disc, owing to the filter’s strong rejection of orange and red wavelengths. Increases contrast between the reddish belt structures and enhances detail of the Red Spot. Also useful for the study of isolated phenomena, such as dust storms, on Mars, as well as the belt structure of Saturn. Increases contrast of subtle cloud markings on Venus. This filter is has a 17% transmission.
Large 26mm in clear aperture
Manufactured from the purest crown optical glass
Dyed-in-the-mass (not color coated)
Each filter glass is anti-reflection coated on both sides and is mounted in a machined aluminum cell with the Wratten No. of the filter marked on the side of the cell.
Filters may be piggybacked, or stacked, to achieve selective filtration of the visual color spectrum.
