DCCI – a technical score based on simple parameters that indicate the quality of photos that can be expected. Here is my formula:
DCCI = (Sensor Diagonal Length in mm)^1.2 * (Max Zoom factor available) * ln(2^((Year Manufactured-1975)/1.5))/ln(10) / Const
Const is fixed at 559.7566738, calculated using a specific camera as “standard”.
For example, for the Canon Powershot A650 IS that I used to have:
DCCI = (9.3^1.2 x 6) x ln(2^((2007-1975)/1.5) / (ln(10)*const) = 1
Similarly for Panasonic Lumix LZ20 that I also have:
DCCI = 3.1762
For a modern cellphone camera, like the iPhone 14 Max Pro:
DCCI = (9.5^1.2 x 3) x ln(2^((2022-1975)/1.5) / (ln(10)*const) = 0.76534 (since it features 3X optical Zoom)
For Canon EOS 5D Mark II with 24-105mm kit lens:
DCCI = (43.27^1.2 x 4.375) x ln(2^((2008-1975)/1.5) / (ln(10)*const) = 4.7581
Though I do believe that DSLR technology has not seen the same level of improvement over the last decade as the mobile camera tech. This is version 2 of the index. Version 1 was:
DCCI = ((Mega Pixels ^ 0.8) * (Optical Zoom) * (Sensor Size ^ 1.2)) ^ 2.3
For detachable lens camera use the total zoom of all lenses you own.
