Decided to attempt to make a basic light ring that could mount onto a Nikon D80 equipped with a lens wearing a HB-32 hood.

Concept

36 white LEDs mounted on a ring of acrylic that would wedge onto the HB-32 hood (which has a mid-point diameter of ~80mm). The power source (4xAA batteries) would mount onto the Nikon D80’s hot shoe mount along with brightness and off/on controls.

Components

  • A3 5mm acrylic = £5.40
  • 5mm white LED (30,000mcd) (£0.64) x 36 = £23.04
  • SPST rocker switch (£0.41) x 1 = £0.41
  • AA battery holder(£0.14) x 2 = £0.28
  • 10K potentiometer (£0.57) x 1 = £0.57

Total = £29.70

Design
The acrylic was cut using a laser cutter with design that was created in Inkscape:

Light Ring Design

Gallery

Sun 13 Mar 2011 21:47:44 UTCSun 13 Mar 2011 21:55:29 UTCMon 14 Mar 2011 21:26:56 UTCMon 14 Mar 2011 21:18:06 UTC