In preparation for imaging the solar eclipse in April 2024, I started practicing getting images with my Nikon D600 through my 120mm f/5 (600 mm focal length) achromatic refractor with Orion white light filter.  Today there is a nice string of sunspots visible that have been spawning auroras in northern latitudes. My camera settings were ISO 125 and shutter speed 1/2500", which seemed to work well.  The focuser on the telescope was set at one mark beyond the 3 line.