Hello! I've got some interesting artifacts on my images of a single LED, and I'm curious how to interpret and overcome them.
Please see two images at: http://www.mediafire.com/?6w6tfmpoqtpipap,c0e69acf1x51ndu The settings for taking both are the following: *1 ND filter output7.jpg* Range of shutter speed 1/8000 to 1/15’’ with aperture f16 Range 1/30’’ to 15’’ with aperture f4 Luminance of reflectance standards: 99% 197.2 cd/m^2 40% 99.3 cd/m^2 ND filter t =0.0094 * 2 ND filters output14.jpg* Range 1/8000 to 1/15’’ with aperture f16 Range 1/30’’ to 15’’ with aperture f4 Ambient light level (illuminance meter) E=667 lx Luminance of reflectance standards: 99% 215 cd/m^2 40% 106.3 cd/m^2 ND filter t =0.0094 2nd ND filter t2=0.4375 Thank you, Yulia
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