As many of you are well aware, the cinema5D lab was built up a few years ago, and huge efforts were put into detailed camera tests concerning dynamic range, sharpness, rolling shutter etc … No new measurements were done in a while, but now we decided to start again, in a step by step manner, building on this foundation. Therefore, as a first activity we are bringing back the dynamic range measurements. This article is intended to describe the workflow and also philosophy of our test and should serve as a reference for those readers who want to engage / contribute to our method and findings. Dynamic Range Measurements – the Conundrum To the best of the author’s knowledge there is no industry standard available for movie cameras, and even the most simplistic definitions are vague as you will see quickly (there is an ISO 15739:2003 standard for digital still picture cameras though from which we will borrow some of our terms and definitions). That has left a lot of room for interpretation and also allows each camera manufacturer to publish numbers which are not always directly comparable between the cameras. Because dynamic range of a camera is an important feature our target here is to establish an independent base reference benchmark which allows direct comparison between the various cameras on the market. What is the Dynamic Range of a Camera? The dynamic range of a camera can be simplistically defined as the ratio of the maximum and minimum luminance...
Published By: CineD - Monday, 22 October, 2018