Understand that the aperture stops change by a factor of square root of 2 (1.4) because they indicate the diameter of the lens opening, and increasing the diameter by 1.4 actually doubles the opening area, thus doubling the amount of light that goes in.
Understand that the aperture stops change by a factor of square root of 2 (1.4) because they indicate the diameter of the lens opening, and increasing the diameter by 1.4 actually doubles the opening area, thus doubling the amount of light that goes in.
Style Long Hair
Photograph  Without a Light Meter
Style a One Piece Swimsuit
Build Big Trapezius Muscles (Traps)