KarstenReis said:Lee Jay said:KyleSTL said:If true, the 7D Mark II's viewfinder will be the exact same size as the 5D Mark III:
5D3 - 1.00 / 1.00 x 0.71 = 0.71
7D2 - 1.00 / 1.60 x 1.15 = 0.71
Crop sensor fans would be elated.
Without other changes, that would make it 2.56x dimmer (or, 39% as bright, if you prefer).
I don't know anything about viewfinders. Could you elaborate on why it would become dimmer?
The sensor in the 5D is 2.56x bigger, which means so is the mirror and thus the portion of the lens' image circle you are viewing. At the same f-stop (f-stop controls "brightness" or "light intensity" [technically illuminance]), more area means more light. Likewise, less area means less light. If you spread that reduced light over the same area of your vision (subtended solid angle), it's going to be dimmer.
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