Light Shaft for Panasonic Lumix DMC-TZ Camera

The friend who took some videos of my driving boats could sometimes hardly see anything on the display. That is the reason why I decided to design a light shaft.
I found out that the first rectangular part, as you can also buy it foldable, is not sufficient enough.
Therefore, I added a pyramidal part, which is simply to slip onto the first part.
In this combination it is noticeable better, though it is recommended to be as close as possible.
The frame is glued to the box and everything i