For bright sunlight set the apeature at f/16 with shutter speed set at 1/ASA. If you are using a flash set the flash to two stops larger, f/8 because using a flash outdoors means it’s less effective because there is nothing from which the flash will be reflected.

Condition

Aperture value

Cloudless, snowy day

f/22

Bright Full Sun

f/16

Hazy Full Sun (LA, New Delhi)

f/13

Midday, light clouds

f/11

Midday, mostly cloudy, or subject in the shadows

f/8

Overcast

f/5.6

PNW/Great Britain heavy overcast

f/4

Sunset/Sunrise

f/2.8

Blue Hour Photos

f/2

Times Square/Las Vegas Strip at Night

f/1.4

Dimly Lit Bar

f/0.7

Views: 4