Visibility IV / V
In October, the quality of the halos really made up for the quantity. The fourth and last halo show of the month served the undersigned with his first sighting of a reflection sub-sun. The weather was calm and cool (+2°C) and the cloud raft passed right in front of the sun.
I first noticed the reflected cloud rays. I set the camera to take a timelapse of them and at the same time a wide bunch of vertical "slices" of haa appeared in the sky (picture 4). This bundle was visible over a much larger area than the diameter of the Sun (the image of the Sun has been added to the bottom of the image at the same scale). I took a few pictures of the situation and set the camera to timelapse (picture 5).
I rushed to get another camera, with which I took a few hundred pictures every 5 seconds. The video composed of them is the main image. When you watch the videos, you can clearly see how the reflection draws an accurate picture of the lake landscape on the sky. In front of the reflection of the sun moving to the right, various shadows can be seen in places, but it is a bit difficult to conclude whether they are caused by individual trees or larger islets, islands or groups of trees. The shadows stay in place, so they can be brought out better by stacking images. Picture 2 shows the first 150 images of the video (at 13:55-14:07) stacked and processed (average stack, usm, contrast, etc.) and picture 3 the same cropped and highlighted a little more strongly. The Sun, which is on the same scale, is also attached to the lower part of Figure 3. Some kind of reflected lake landscape can be seen in it.
I also flew a drone, but there were some small problems with it, when I wanted to get as far southeast as possible in the direction of a more open lake landscape. The connection was lost and the drone then returned to itself. Picture 6 shows one cropped and lightly blurred picture from the flight.
Figure 7 shows the sector of the Sun's directions at the time of pictures 1-3, delineated on the citizen's Karttapaikai map. The height of the sun was about 10 degrees.