... -35mm f /2. ... ... -35mm f /4L ... ... -35mm f /2. ... ... -35mm f /2. ... ... -40mm f /4L ... ... -35mm f / 3.5 -4. ... ... -70mm f /2. ... ... -70mm f /2. ... ... -70mm f /4L ... ... -85mm f / 3.5 -4. ... EF 24-105mm f /4L ... ... -70mm f /2. ...
For hazy sunlight (with weak shadows) use f/11. In cloudy bright conditions (with no shadows) try f/8. On heavily overcast days or in open shade, f / 5.6 is required.