Friday, March 23, 2007

Making and Testing the Static

This was a really simple build with better results than the spinner that is still half finished. I can't take that much credit for it. I think the condenser on the Nikon Type D has a lot to do with it.

  • Nikon Lens
  • Nikon Macro extension tube
  • Nikon F3 Type D Focus Screen
  • Reverse Macro coupler for tube (for later)
  • Step-up adapter for camcorder (for later)
  • Art Foam

  • Ruler
  • Boxcutter
  • Lenspen

I took the macro tube and stacked it with 1, 2, 3. In ring number 3 I put a ring of art foam to cover the space. Then another layer of art foam was wrapped around the focus screen so pushing it in braced the screen into the tube. With this macro tube stacked this way, the edge of the ring threads comes to about 46.5mm! Simple as that. Hook up your choice of Nikon lenses and setup the camcorder. Zoom in and press record.

Cheated a bit. I ordered the wrong macro tube so the thread was female rather than male. And its ring was 52mm female threaded rather than 58mm male threaded. So I'll need a macro reverse coupler and a step-up ring to hookup to the camcorder

The video was extracted from DV and then rotated 180 degrees. It was recompressed with ffdshow to fit in youtube size. The static grain isn't as obvious because of the downscaling (720x480 16:9 to 360x240 4:3). The washed out colors has more to do with the shooting environment and the single CCD camera. It was shot indoors during a rainy day.