My name is Elefterios and I am studying photography and audiovisuals. Currently I'm on my last year doing my thesis project related to timelapse. On the HDR Timelapse chapter I'm writing a short introduction explaining dynamic range.
As funny as it sounds I've been really confused when it comes to dynamic range measured in EV, or dynamic range stops, that a sensor can capture and I can't find an easy and simple explainable answer online.
So I'll try and make my question as clear as possible.
A lot of modern camera manufacturers claim that their products' sensors have X amount of Ev (exposure value) or dynamic range (stops).
for instance the latest Hasselblad H6D offers up to 15 stops of dynamic range https://youtu.be/ZGG8f4H3pps?t=1m35s
Arri's Amira and Alexa Offer 14+ stops of dynamic range http://www.arri.com/camera/amira/camera_details/amira-premium
Red's WEAPON offers 16.5+ stops
Blackmagic's cinema cameras Micro and Normal offer 13 and 12 stop dynamic ranges
So basically I want to understand: what do these numbers really mean? For example in a single frame, 13 stops of dynamic range means 13 stops inside the light meter of the camera? If that's the case I think in reality that's way too much. It's like saying that from 1 second of exposure I go all way up to 1/8000 of a second with my Canon 5D Mark III to be able to get an image with 13 stops of dynamic range.
At least that's what I understand with the term "13 stops of dynamic range".
When I shoot an HDR image of -3, 0, +3 exposure values, what is the dynamic range of that image? Because if my saying above is correct then an HDR image of -3, 0, +3 has a dynamic range of 6 stops.