Have you ever looked through your binoculars and thought " I wish I could get this on tape" ? Well now you can. In this Instructable I'll show you how to build a cheap CCD eyepiece that will fit most binoculars.
You can use it with any camcorder that has a video input to capture whatever you can get a view on with your binoculars.
Step 1: Materials and tools:
Gather the following, but note nothing is critical. Here and there I'll tel you how you could do it differently.
saw, soldering iron, pliers, electric drill with hole saw, sharp knife, 4mm threading tool.
- 1 cheapo binoculars (mine cost me +-8 euros, but they are quite good.)
- about 12 cm of PVC tubing , inner diameter must be a larger (1cm is ok) than binocular diameter. (I used 40mm diameter, 1.8 mm wall thickness, thicker is ok too).
- 6 nylon 4mm 12..20 long screws.
- RTV silicone or other adhesive.
- 1 CCD camera module. I used what I could get, which was a module cheap B&W module intended to go in a security camera. It cost me <20 euros. If you have the possibility use a color module with a decent number of lines, as this will give you a better result in the end.
-Some electronic components to power and attach the CCD module. This really depends on the module you can get.
Mine needed 5V, so:
- 78L05 Voltage regulator
- 10uF 16V capacitor
- 10uF 35V capacitor
- 220 ohm resistor
- red 3mm led.
- 1N4148 diode for protection against power-reversal,
- connector to go to a wallwart
- cable with video connector that matches the camcorder/monitor/videorecorder you want to use.
- a piece of perfboard.
optional: AA-size battery holder and switch, if you want a portable power source.
I couldn't find the exact datasheet of the CCD module I bought (they didn't even have it in the shop), but here is a datasheet of one that looks just like it, and had the same connections.
Incidently, you could do this hole thing also with a gutted webcam and use a laptop to record what you see through your binos, while you're on the road.