View Full Version here: : Ever wondered what was inside a digital movie camera
Glenhuon
27-10-2007, 04:51 PM
A friend dropped an old Toshiba digital tape movie camera around, cause he knows I tinker with these electronic gadgets. It was pretty far gone, so out of curiousity before it got consigned to the bin, I took it apart.
The miniaturisation in these things is amazing. What really tickled me was the size of the stepper motors for the Focus/Zoom. Here's a pic of some of its innards.
[1ponders]
27-10-2007, 04:58 PM
I wonder if those stepper motors could be modified to perform the same function but as an extenal focuser for a DSLR lens. :confuse3:
Shawn
27-10-2007, 05:14 PM
Jeez they are tiny, I didnt realise that was a ruler.. A mate of mine makes tiny model flying planes out of motors from cellphone vibrators, and watch batteries as a power source, about 2 and half inces long, and they fly really well, pretty much anywhere the want to, but they fly... May I ask what happened to the camera apart from the obvious...:lol:
Glenhuon
27-10-2007, 05:32 PM
Well, the plastic bits are in the bin, the circuit boards are still on the bench with the tape drive mech (pretty well U/S, someone must have had a tape stuck in it and removed it with a screwdriver or some other brutal instrument)
Kept the lenses, I have a collection of these from all sorts of optical gadgets.
Pride of the collection is a couple of uncoated 6" square ones, probably from theatre lighting. Recently acquired 4 50mm slide projector lenses, still looking for a use for them. Might make good finder or guide scopes. It keeps the brain active, use it or lose it they say :D
Shawn
27-10-2007, 05:42 PM
Ah so it was a VCR, I see. Ive got one of those around the place somewhere, he says looking around for a blunt and brutal instrument...;)
xelasnave
27-10-2007, 05:50 PM
I have pulled one to bits..the motors and the worm drives very handy
alex
xelasnave
27-10-2007, 05:53 PM
I let my daughter dismantel most of it and a deck .. she was very intuitive the way she went about it ..she was 7 then
alex
ballaratdragons
27-10-2007, 07:04 PM
WOW! Those stepper motors are only 10mm long and about 8mm wide!!!!!!!
I have always wanted to do that to a Camera lens on day, just to see how it all fits together, but i haven't had one that is crappy enough to do it to.
leon
Glenhuon
28-10-2007, 10:46 PM
The bits come in handy Leon. When I got my first scope, a 60mm refractor, it didn't have a finderscope so I made one. The objective was salvaged from a old stereo camera that I found in the tip, the barrel was a bit of an old stirrup pump tube, the eyepiece was the lens from an 8mm cine projector, and the objective holder and focuser tube were turned down from Onga pump fittings. Still have it, works well even has copper wire cross hairs. :)
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