I ran across this infrared project some time ago, and thought I would like to give it a try. All our cameras have filters in them that filter out most of the infrared spectrum. Removing this filter makes for interesting infrared photography.
First, I located an older spare webcam. Then removed the housing, which was really snapped together well. I needed access to the camera circuit board. If you’ve never had the opportunity, to see how small the image sensor is, this is your chance. The small black rectangular object in the center, is the sensor chip. The lens housing, sits over this and focuses the image onto the sensor. This one also has a small microphone, actually large by today’s standards. In the bottom of the lens housing, is glued a small piece of infrared filter glass. You have to remove it to allow the infrared through. It was stubborn, but I donned my magnifying headpiece, and pictured myself as a mad scientist. I was as careful as possible, but I still broke/chipped the glass square. It not being much larger than the sensor chip, and glued in securely.
Glass filter removed
This is an example from Wikipedia of infrared photography.
This is what my old webcam produces now. The trees across the way are filling out with leaves. This makes them look less leafy. The shrubs and grass are a rich green. I forgot that infrared light causes a slight focus shift. I need to adjust the focus for clearer pictures.
Time to find another project now.
Comments always welcome
Edit: Some how my pictures have been deleted by accident. Sorry.
When you were a kid did you drive your mother crazy by taking everything apart to figure out how it worked?
I always wanted to be a Scientist, or Electronics whiz. I became a Police Officer.
Your ingenuity is always impressive, Ron. Most of this went over my head, but it seems like a good way to get into infra-red photography without investing in specialist film stock and processing.
Best wishes, Pete.
Thanks, Pete. Technical stuff isn’t real interesting to many, and I understand and respect that. I drop these in once in a great while, so anyone having difficulty finding the information they need, maybe this will pop up for them in a search.
I’m always interested, Ron. Even when I don’t understand it.
I admire people who tinker with things. I’ll follow instructions to make things work, but I don’t launch out on my own. That takes daring and a sense of adventure!
Way over my head too! I’m not even sure why you would want to “filter out most of the infrared spectrum” in the first place! I think I need to check the book out of the library, “Photography for Dummies” – if there is one. If there isn’t, maybe you could write it!!
I like black & white photography. I enjoy seeing things we can’t normally see. Colors, or different perspective.