This picture of the Château Frontenac and Dufferin Terrace was taken during the Quebec Summer Festival 2018. From where I stood, near the Citadel, I could hear the crowd present on the Plains of Abraham during Patrice Michaud’s performance.
The picture was taken with a full frame Canon 5DSR camera equipped with a Canon EF70-200mm f/2.8L IS II USM. The focal length was set at 70mm. As the sun was setting, an ISO set at 200 would have caused the moving persons to be blurred. It was thus necessary to set the ISO at 4000.
Working without a graduated filter to attenuate the background light, I had to correct the exposure at +1, otherwise the middle ground would have been too dark and it was the main subject of the picture. I then slightly reduced the clear tones of the sky with Photoshop for a more balanced result.
The focus was done manually while the camera was installed on a tripod. The aperture was limited to 4.5 to limit the exposure time so that a compromise could be found between an acceptable depth of field and the moving people. This allowed for a shutter speed of only 1/15 sec, even in a relatively low light.
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