Inverse Square Law Double the distance equals 1/4 of light intensity. http://petapixel.com/2014/09/28/this-handy-little-web-app-will-help-you-visualize-dof-across-various-formats-and-focal-lengths/ Reciprocity Law Failure exposure= intensity x time This equation “breaks down at extremely long ( and short ) exposure times, known as Reciprocity failure.”(Langford, Fox & Smith, 2010) http://pubs.rsna.org/na101/home/literatum/publisher/rsna/journals/content/radiology/1944/radiology.1944.42.issue-5/42.5.471/production/42.5.471.fp.png_v03 Colour Temperature Is calculated in Kelvin (k). In digital cameras like the DSLR it …
Continue reading “T&P 2A – Outcome 2 -Inverse Square Law 1-Experimentation and Outcome – Page 51-54”