Yes. The Pyramid shape of UFOs were caused by the BOKEH produced by certain infra-red cameras.
These exact cameras had triangle-shaped openings, which get projected onto the sensor when you are not in focus.

In a few days there will be a new black hole picture of the Milky Way.
And on this sub I criticize the bad science of the NASA.

In this post I am referring to the BOKEH that is produced by the radio-telescopes which are arranged in a circle (most of the time).
And if you have them in a circle, you get circle shaped bokeh image.

And I am fairly certain that this principle produced the "black hole" image last time, and will produce it again.
They also used completely noisy data from certain telescopes to tune their other telescopes.
And to this they added a combination of interpolation, computer processing and poorly understood AI manipulation. \

Here are all the images produced by their statistical processing
And here is my Bokeh image of a single point, using holes in my lens.
The holes were placed in places where a rough estimate of the distribution of the radio-telescopes on earth.
This should be corrected for additional factors, but it already shows the principle of the BOKEH problem in black hole images.