I installed my panoramic pinhole camera on a tripod, adjusted the framework to show the stairs, trains passing by and windows. I also was hoping some people would stay long enough in the same place to appear in the image but trains come very often one after an other and the long exposure was too long for it (15 min about).
This is why it looks empty now but if you look with attention you can see some people shadows like ghosts. The station was actually very busy.
"Camera what" he asked again.
"Pinhole. Pinhole camera means that the photo is made without lens." I explained.
Just after my explanation I asked him to step behind the camera because it was a very wide panoramic image I was making.
I could see on his eyes he was very surprised and curious. He asked then: "No lens. Is it possible? How is it?"
I told him "Instead of a lens the light go through a small hole. It is not very different than a lens. Lenses just help make sharper images and changeable hole sizes".
"And it works without lens, just a hole?"
"Yep!" I confirmed
An other man came nearby looking at the camera and standing in front of it. I told him that he was blocking the images I was trying to photograph, asking him if he didn't mind to move behind the camera. It seemed he didn't understand exactly the words, maybe he didn't speak the language I was using to talk to him, but he got what I meant. Showing a kind of lost about how to behave or what to do, he shyly pointed at a U-Bahn map on the wall behind the camera, pretending reading it.
The other man who previously was curious, impressed and asking about the camera tried to help, insisting to the silent strange standing in front of the camera to move away. I told him it was ok, to not worry.
"But he is blocking your photograph. Is it ok?" he asked worried.
I told him "if he doesn't stand still in front of the camera for too long, it is ok".
Very impressed he asked me why. I then explained "because it is a 15min exposure and in a such long exposure anything that doesn't stay still for too long won't appear in the image."
Impressed again and satisfied, he decided to take the train that just stopped, together with the man who was standing in front of the camera.