For amateur photographers and those who simply want to understand the basics of professional photography, the most difficult moment is choosing an aperture. This is one of the main parts of the camera, which largely determines the quality of the images. That is why its choice must be treated with due care.
Instructions
Step 1
Consider the fact that the larger the light transmission area, the lower the f-number will be (apertures are always indicated by the f-number values, which quantitatively describe the relative light transmission area). This often confuses aspiring photographers and people use the two terms interchangeably. However, a smaller aperture suggests that subjects can be in focus at a distance with a wider range. This concept is known by the term "depth of field".
Step 2
When choosing a lens, pay attention to those specifications, which indicate the maximum (in some cases minimum) allowable aperture. Lenses that have a wide aperture range can provide greater flexibility in both shutter speed and depth of field. The maximum aperture is probably the most important characteristic of a lens. Very often, its value is indicated on the package next to the focal length.
Step 3
When shooting portraits, sporting events, or theatrical performances, use the smallest aperture possible. This will provide fast shutter speeds or, accordingly, a shallow depth of field. A shallow depth of field for portraits allows you to separate your subject from the background. For digital cameras, large apertures suggest a much more colorful viewfinder image. This can be critical when shooting at night or in low light conditions.
Step 4
Please note that even if the maximum aperture value is unacceptable, this does not mean that such a lens is not needed. Lens aberrations are generally less when an exposure is used that is 1–2 f-stops below maximum opening.
Step 5
Other considerations when choosing include price, weight, and size. Lenses with higher maximum apertures are much heavier, more expensive, and larger.
