|
|
| Line 1: |
Line 1: |
| '''Infrared Camera'''
| |
|
| |
|
| For the focal camera project I wanted to build an analogue infrared camera.
| |
| I actually didn't really have a clue about analogue photography and how these cameras work because I previously worked solely with digital cameras.
| |
| But I'm happy to say that I kind of get it now.
| |
|
| |
| So the first step was to decide what kind of camera I would go for.
| |
| I picked the pinhole because I wanted to understand the most basic camera as my starting point.
| |
| To the pinhole camera I also added a viewfinder that combined two lenses.
| |
| The building of this was to my surprise very doable and not that complicated.
| |
| But since I am researching infrared photography for my self-directed research, I had the question: Is it possible to build this camera in a way that it will capture the infrared light?
| |
|
| |
| So since the camera is analogue there was not necessarily a special way to do this in the building phase of the camera.
| |
|
| |
| That's why I needed the Ilford SFX film roll so I used this.
| |
| This film is capable of partially capturing the infrared light.
| |
| Full infrared film rolls are unfortunately no longer available or I would have to buy them second-hand for a very expensive price.
| |
|
| |
| So to summarize I just made a basic pinhole camera in which I used the Ilford SFX film.
| |
|
| |
| '''What were the results?'''
| |
|
| |
| Well the film roll was overexposed.
| |
| This had multiple reasons:
| |
| When using an infrared film roll you need to be kind of precise about the exposure time as it is very easy to over or underexpose.
| |
| The exposure time will be longer but it is hard to guess how long with no experience beforehand.
| |
| I also used a red piece of plastic in front of the pinhole so it would be able to capture the infrared light, because when you would use a regular analogue camera with a lens you also need an infrared filter. (because the film rolls are only partially infra-red) Of course a piece of red plastic is not the same as an infrared filter.
| |
| During the developing I also wasn't careful enough with outtake of the film so it probably got exposed during this too, while these infrared films are super sensitive to exposure so I should have been more precise.
| |
|
| |
| I'm also not sure if a pinhole and infrared film is a nice combination.
| |
| Since the shutter speed is so hard to control and it still needs an infrared filter on the lens.
| |
|
| |
| I will further this experiment on my own Olympus analogue camera with 35 mm infra-red film rolls in combination with my Hoya R72 lens filter.
| |
|
| |
| In case i will use my pinhole camera again I will do this with black and white film rolls in medium format.
| |
|
| |
| Because I wanted to see if there was a slight hint of an image on my film I scanned the film roll.
| |
| These results are also added to this page.
| |
|
| |
| In the end I don't mind that I didn't get pictures yet, because by sort of failing I found out a lot more about infrared photogpraphy.
| |
| And I finally get the mechanics of a camera a lot better.
| |
|
| |
|
| |
| The scan results:
| |
|
| |
| [[Media:Scan pinhole infra-red.jpeg]]
| |
|
| |
| [[Media:Scan 1 pinhole infra-red.jpeg]]
| |
|
| |
| [[Media:Scan 2 pinhole infra-red.jpeg]]
| |
|
| |
| [[Media:Scan 3 pinhole infra-red.jpeg]]
| |
XPUB & Lens-Based wiki