Jupiter imaging with Wratten# Colour Filters...
Many observers around the world are going from the old Philips colour cameras to the new MonoChrome ones like DMK and Flea wich are more sensitive and produce images of higher quality.
The problem with those cameras is that the camera alone is not enough, in order to produse good quality colour images you also need to get a filter weel and the correct filters for RGB or LRGB imaging. This is something that gets the cost in really high prices.
In the far past I was a visual observer of the planets and that means that I had many Wratten filters for that kind of observing. Then I got a Philips camera that gave me many wonderfull pleasures of imaging the planets, last I got a DMK21AU04AS camera to do Venus and Jupiter imaging in UV & IR. Then the need for better images with this camera brought me to the dilema.
- Get all the equipment that I had all those years and sell it in order to get the filter weel and the LRGB filters .... OR
- Use all the filters that I had and try to see if it is worth trying imaging with them.
W#25 (Red Filter)
W#25 is the old dark red filter wich was used for better viewing of the belts and the spot. Here you can see that it has echanced the equatorial details between the belts of the planet, but it makes the GRSpot almost invisible.
W#21 is the old orange filter that was used widely for the determination of the "Phases" of Venus. The use of this filter in Jupiter was the same as W#25 filter but it was more "light" than the w#25. Here you can see that in imaging the planet with my DMK camera gave me almost the same results as the #25 but with much more detail.
W#58 is the green filter. In imaging the planet, this filter give a lot of contrast and makes darker some major features like the Belts and the GRSpot.