Hi,
I had relatively good seeing for Mars this morning. Mare Siremun, Eridania, Mare Cimmerium and Syrtis Minor were positioned well. Additionally, I could hold Electris visually from time to time. Hellas & Syrtis Major were following. I was lucky to get this drawing done before a cloud bank rolled in.
I also got to try a so-called new Mars filter. I believe this filter only allows the blues and greens, then attenuates or cuts out the yellows, then allows the oranges and reds. Basically, it is a notch filter with all higher transissions being in the 90-995 percentile. The attenuated notch is squashed down to around 10% or less. My take on this is that the overall tint/redition could be a little bit redder. I imagine that this beta filter will change a bit. This way the red features could appear redder and the dark features could be a little darker. This filter presented a slight greenish polar cap as well. I guess all I'm trying to say is that the green could be cut a little bit. My personal preference is to skip green image renditions when it comes to Mars. I have already been told the that notch will be moved about 15 nanometers toward the left-greenish end. I think that this may work out for the better. I'll report any progress that may be made regarding the possibility of any new interference filters.
Sol Robbins
I had relatively good seeing for Mars this morning. Mare Siremun, Eridania, Mare Cimmerium and Syrtis Minor were positioned well. Additionally, I could hold Electris visually from time to time. Hellas & Syrtis Major were following. I was lucky to get this drawing done before a cloud bank rolled in.
I also got to try a so-called new Mars filter. I believe this filter only allows the blues and greens, then attenuates or cuts out the yellows, then allows the oranges and reds. Basically, it is a notch filter with all higher transissions being in the 90-995 percentile. The attenuated notch is squashed down to around 10% or less. My take on this is that the overall tint/redition could be a little bit redder. I imagine that this beta filter will change a bit. This way the red features could appear redder and the dark features could be a little darker. This filter presented a slight greenish polar cap as well. I guess all I'm trying to say is that the green could be cut a little bit. My personal preference is to skip green image renditions when it comes to Mars. I have already been told the that notch will be moved about 15 nanometers toward the left-greenish end. I think that this may work out for the better. I'll report any progress that may be made regarding the possibility of any new interference filters.
Sol Robbins
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