How-to Tuesday: 1934 USB web cam

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A while ago I converted a 1934 folding camera into a USB web cam. I brought it with me to Maker Faire Austin 2008 and a lot of people seemed to like it. In fact, a lot of people wanted to know how I made one. I promised them I would do a how-to on the blog, and I always keep my promises, so let's get started.

The best part about this project is the availability of the cameras. I was able to pick up a USB web cam for $10 at a local bigbox store. The antique cameras I picked up on ebay for $1. Actually, I picked up (2) cameras for $1 each and the shipping was only $5. That was a great deal. You can easily pick one up for less than $10 online or a local antiques shop.

What you need:

  • Antique folding camera - Available on ebay for $1 - $10
  • USB web camera - Available for $10 - $20
  • Heat-shrink tubing
  • Rosin core solder
Tools you need:
  • Soldering Iron
  • Glue Gun
  • Arms of Assistance - Make you own
  • Fume extractor - Make your own
  • Miscellaneous hand tools - screw driver, needle-nose pliers

Step 1: Purchase the cameras
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First you need the cameras. Scour the Internet, check local antique shops, or ask your friends. These types of cameras, both the antique camera and web cam, are readily available and they are very affordable.

Step 2: Remove the lens
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Start by opening up the antique folding camera. There is usually a switch somewhere that slides over so you can load the film.


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Inside, you will find a retaining ring. This holds the lens assembly in place. You will need to remove this ring. It is much easier to hack the lens assembly when it is off the camera body.

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You can use some needle-nose pliers to unscrew the ring.

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Now the lens assembly will drop right out of the camera body.

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There are several rings that you can unscrew and try to pry the lenses out. However, it's a lot easier to just put a screwdriver on them and give a slight tap with a hammer. The lenses will shatter and you can scrape out the remaining parts with the screwdriver. Make sure you wear safety glasses!

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Now that the lenses are removed, go ahead and attach the lens assembly back to the camera body.

Step 3: Hacking the USB wire
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Now you need to do a little hacking of the USB wire. The plug will not fit through the hole in the camera, so we need to cut it and splice it back together. Cut the wire about 12" from the USB plug of the web cam.

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Next, remove the red plastic window from the antique camera. This is where the USB wire and the microphone wire will pass through. If your camera doesn't have a window, you can feed the wire through the tripod mount or just drill a hole in the case.

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Next, feed the USB wire through the hole in the antique camera. Don't forget this step, I almost did!

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Now you can solder all the wires back together. The USB plug has (4) wires and a braided shielding wire. Solder each one back together and use a little bit of heat-shrink, or electrical tape, so there aren't any shorts. Make sure to add a larger piece of heat-shrink to the USB wire prior to soldering all the smaller connections.

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Once they are all soldered, go ahead add heat-shrink the larger piece of tubing over the entire splice.

Step 4: Adding the microphone
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Now it is time to add the microphone. My web cam came with a combination headphone/microphone plug.

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All I had to do is cut the headphone wire completely off and crack open the microphone's plastic case. This left me with a nice little microphone.

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Feed the microphone through the hole in the back of the camera! Using a small screwdriver, poke a hole in the camera's bellows. Next, feed the microphone through the newly created hole.

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Use some hot-glue to attach the microphone wire to the camera's bellows.

Step 5: Adding the USB camera
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Now it is time to add the USB camera to the antique camera. First, plug the USB camera into your PC. Adjust the lens so you are in focus. Now, mark the lens with a small line. Finally, add a dab of hot-glue to the focusing ring. Make sure the lens is still on the mark!

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Now it's time to hot-glue the web cam into the antique camera. Add a healthy amount of hot-glue to the focusing ring of the web cam. Quickly place the camera inside the antique camera. Look through the front of the camera to make sure the web cam is aligned properly.

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As a final step, I added a little extra hot-glue on the sides for good measure.

Step 6: Plug in and enjoy
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Set the exposure to bulb and click the lever to the open position. It should stay open. If not you can make a slight bend and it will "stick" open, or just add a dab of glue.

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Now I have (2) antique USB web cams. Maybe I should give one to a friend so we can videoconference using these fun little vintage USB cameras.

In the Maker Shed:
Makershedsmall
MKQT111-2.jpg
High-Speed Photography Kit Version 4


Recent Entries

Comments

Oldest comments listed first.

Posted by: Shelby Davis on November 18, 2008 at 8:03 AM

Dyslexia

Shouldn't a 1934 Webcam connect via IEEE 1394?


Posted by: Marc de Vinck on November 18, 2008 at 8:12 AM

@Shelby

Hahaha! Thanks!


Posted by: teo on November 19, 2008 at 8:54 AM

so you riuned a medium format camera to get crappy 640x480 images using a plastic lens? very clever!


Posted by: Marc de Vinck on November 19, 2008 at 9:41 AM

Yep! However, I would argue the term "ruined" and replace it with "gave new life to". Oh, and it was a lot of fun!


Posted by: McFortner on November 19, 2008 at 12:12 PM

No, I'd say he was right with ruined. You could still obtain film for that camera and take pictures with it. It's like taking the Venus de Milo and using it for target practice just because it's missing arms.


Posted by: Marc de Vinck on November 19, 2008 at 12:40 PM

Wait. You are comparing a $1 camera to Venus de Milo???

Yes, you CAN get the film, but are going to actually get it, and develop it? Most likely you aren't. However, if you do, please post the pictures because I bet they come out really cool.

I wish there was an easy hack to add a digital back to one of these cameras? Hmmm, maybe that's another How-to Tuesday!


Posted by: Paul on November 19, 2008 at 1:51 PM

http://flickr.com/photos/meshroom/page3/ &http://flickr.com/photos/meshroom/page4/

A number of pictures shot with a ~1940's coronet folding camera similar to the one mercileslly hacked above. :)

pics were shot 3 years ago for a project. You can get incredible results with a bit of patience.


Posted by: Marc de Vinck on November 19, 2008 at 3:07 PM

@Paul

Thanks for the link. Now I really want to try it out. Luckily, I have one more that survived the build. I also have a Brownie 6-20 that I would like to try out.


Posted by: Cody Goddard on January 6, 2009 at 6:47 PM

Flash cam

I recently had to hide a webcam in a camera setup for a physical computing project I was working on, and developed a similar solution. I had an old Vivitar 283 that was broken, so I gutted it and stuck a higher-end Logitech webcam in it (captures video at 1280x960 or something like that). It also has an embedded microphone (look for the small hole directly above the model sign). You can still focus the lens by turning the front element - I attached the pcb in the back so the focusing element would still be free to rotate. The whole unit sits upright with one of those flash feet that manufacturers include with new units. (Working 283 on the left, modified unit on the right)

http://goddard.smugmug.com/photos/447517893_fmJZk-L-1.jpg

http://goddard.smugmug.com/photos/447518618_9oiNR-L-1.jpg


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