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| The camera case pops open quite easily and the camera board is loose inside (no screws) |
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| First I tried unscrewing the lens but it was glued to the lens holder so I just ended up destroying the plastic. |
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| When removing the cover, take care not to break the little snaplocks like I did.. |
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| Instead of trying to remove the lens I just removed the whole assemly. It's mounted using some sort of silicone so I just pulled it off with a pair of pliers. The infrared filter is now clearly visible in red. |
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| I removed the filter by pressing a tiny screwdriver along the edges of the filter, shattering it and removing the pieces/dust. (removed pieces of the filter is visible in the picture) |
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| To the right you can se the silicone still left on the PCB where the lens assembly was mounted. After removing the infrared filter I put the lens assembly back in the silicone "holder" on the PCB. |
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| And fastened it with some hot glue. |
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| Unfortunately I ended up with this image. Lots of stains/spots and a very short focus distance. So I removed the lens assembly again and saw that there was alot of tiny dust particles on the image sensor. These could easily be removed. To fix the focus I had to move the lens closer to the image sensor. This meant that I had to carve away some plastic at the bottom of the lens assembly (the part that touches the PCB) with a small knife. |
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| I put the lens back and the focus distance was better and the spots gone. There is a slight blurring in the right hand side of the image due to a small scratch I happend to make in the lens when removing the IR-filter. |
