Quote:
Originally Posted by AlphaBjerke
Specifically, he had an expensive lens and I had a kit lens. We were both shooting at the same aperture and the same shutter speed, but he was able to shoot at 200 ISO when I had to shoot at 400 to get the same settings
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Wow...Canon f/1.2 L lens is actually f/0.85
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What do you mean by 'same setting'? Other than different metering systems, different metering modes and lens manufacturing tolerance, you can shoot at the same EV as his (within your camera's aperture/shutter speed/ISO range). That's how we transfer EV reading from an Incident meter to our camera.
With wide apertures, you can select lower ISO or higher shutter speed with fast lenses for a given EV.