- The visible spectrum (01.2018)
- Black body radiation and color temperature (12.2013)
- Sensitivity of the human eye (12.2013)
- Luminous intensity and luminous flux converter (12.2013)
- Spectrum of common photographic filters (12.2013)
- Polarization of light (03.2014)
- Focal length calculator (08.2013)
- Depth of field calculator (08.2014)
- Camera wievfinder coverage (12.2013)
- Lightning strikes photography (11.2013)
- Fireworks photography (11.2011)