Simone, I am going to use your words for my yearly appraisal at work 
Now, on a more serious topic, I am looking at your photos again (I like the 1st the most), I am thinking of buying the Astro-Baader filter.
I will most likely use it on mu 300/4.5 AIS that has a 72mm thread. So which one to buy and where?
I know it's dangerous and precautions need to be addressed but your image inspired me so much that I would like to give it a go
I got the filter from Amazon, but you can buy it directly from the manufacturer too.
The best value is to buy just a sheet, it comes with instructions on how to make a cardboard filter for it.
There are two kinds of Baader Astro Solar filters.
The first, and the one I used here, is for visual observations. It is the same used in eclipse specs and it attenuates the light by 5 orders of magnitude (the light passing through is weaker by a factor of 100000). There is also another filter for photo use that attenuates by 3.8 orders of magnitude. Is is not safe to use for visual observations (specs).
I did not buy the second kind because it was available only in quite expensive sheets that are much larger than what I needed. Obviously you would get about 20 times more light in, which is useful for photography. Instead mine was A4 sized.
There is also another brand that is also 5 orders of magnitude but is not a neutral filter; it does intead give the sun a deep yellow colour. It was not available in the size I wanted when I was shopping so I have not tried it.
Regarding lenses consider that you will need a very long lens to get a reasonable size on the sensor. The Moon and the Sun have an approximately similar apparent size in the sky.
As Bjørn said when I was inquiring over a year ago, for every 100mm of focal length the Sun/Moon is rendered as a 1mm diameter circle; so 3mm in your sensor if the lens is 300mm.
So on a full frame it is a really tiny part of the sensor.
Even with a 500mm you get a rather small circle; in my case, with a DX sensor, the Sun took less than a third of the short side of the picture.
Whatever you do, remember to NEVER point the lens focused at infinity toward the sun, without having the filter already on. Even a very short time would almost certainly destroy your retina and/or the sensor of your camera (which might even catch fire).
