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Additional ultra wide-angle electronic viewfinder
Attach a 3 cm and 8 cm viewfinder to the self-made 45 cm newtonian telescope and put it in the field of view of the telescope before the automatic introduction setting. After the automatic installation is set, it will be done on the personal computer without using it. Since a long FL is required when shooting a planet, an electronic viewfinder with an ASI174MM attached to a 6 cm (FL / 420 mm) refraction and PHD2 are used together. Since it is a telescope mounted by force, tracking of the equatorial mount is not good, and it is necessary to monitor it with a handbox during planetary imaging. Planet imaging is also convenient with auto-guide. It seems that auto guide can be done with Firecapture, but I don’t use it because it’s not working well. This time, while organizing the equipment, the DMK camera and wide-angle lens that I received a long time ago came out. An ultra-wide-angle electronic viewfinder is installed at the tip of a 45 cm cylinder. I can see the whole sky, and the cloud situation is obvious and I can use it.
