pin-hole SP

My first steps into the world of pinhole photography !
My self-made pin-hole lens mounted on my camera, and then sit still for 30 seconds ...
This makes one realise how long 30 seconds last !
I still have to do more experiments with diameter, roundness and edge quality of the needle-stich hole (aiming at approx 0,4 mm)
It also represents more or less my nearby eyesight and need for eye surgery.