Check out these Aluminium Shutters images:
img_4513

Image by steevithak
Front yard
These were shot with a Canon 40D using aluminium foil over the lens mount. I poked a hole with a pin near what I hoped might be the center and started shooting. I cranked the ISO up to about 1200 and was able to use shutter speeds around 1/6 of sec.
img_4499

Image by steevithak
White flowers
These were shot with a Canon 40D using aluminium foil over the lens mount. I poked a hole with a pin near what I hoped might be the center and started shooting. I cranked the ISO up to about 1200 and was able to use shutter speeds around 1/6 of sec.
img_4497

Image by steevithak
Yellow flowers
These were shot with a Canon 40D using aluminium foil over the lens mount. I poked a hole with a pin near what I hoped might be the center and started shooting. I cranked the ISO up to about 1200 and was able to use shutter speeds around 1/6 of sec.