THE WEB FILTER - CLEANING HEPA FILTER - HYDROPONIC CARBON FILTER.
Here you see the difference that the filter makes in astrophotography. It's not like a dark sky site, but it is much improved. The annoying orange color has been suppressed and the contrast has been improved. That is Jupiter that you see spanning the break in the middle. The exposure for the planet itself hasn't changed much, but the contrast with the background sky is better. There is a little gap in Jupiter's track that represents the time I took to install the filter on the camera. I had earlier photos ruined by 2 different motion sensor lights, one on-camera and one off camera. There is 1 mercury vapor light (where you see the green here) that was on all the time I took the images.web-image-bbaef6429bf39e684ce903a822b4c350
A guy I work with got shafted by our parts supplier. They had put the wrong label on an oil filter. Co-worker does oil change. Oil filter falls off on the interstate due to the wrong thread pitch on the filter. This caused insufficient tension of the filter housing against the engine. We made him a trophy using parts we scavenged out of the destroyed engine.
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