The f/4 aperture is a moderate aperture setting commonly found on camera lenses, representing a balanced opening that provides good depth of field while still allowing reasonable light entry. The f/4 aperture is one stop narrower than f/2.8, meaning it allows half as much light, but it provides greater depth of field. F/4 is a common maximum aperture for many zoom lenses and some prime lenses.

Converting f/4 to other f-stop values helps photographers understand aperture relationships and exposure settings. F/4 is wider than f/5.6, f/8, and other f-stops, allowing more light to enter while providing good depth of field control. Whether you're comparing f/4 to other f-stops for exposure settings, understanding f/4 aperture characteristics for photography, or using an f-stop converter for photography calculations, f-stop conversions are fundamental to photography exposure measurements.

The f/4 aperture is used in photography for various applications where good depth of field is desired along with reasonable light-gathering ability. Many zoom lenses feature f/4 maximum apertures, providing a good balance of performance, size, and cost. The f/4 aperture's moderate opening makes it useful for landscape photography, group portraits, and situations requiring good depth of field.

The f/22 aperture is an extremely narrow aperture setting available on many camera lenses, representing a very small opening that provides maximum depth of field while allowing minimal light to enter. The f/22 aperture is one stop narrower than f/16, meaning it allows half as much light, but it provides the greatest possible depth of field. F/22 is used for specialized photography situations requiring extreme depth of field.

Converting f/22 to other f-stop values helps photographers understand aperture relationships and exposure settings. F/22 is the narrowest common f-stop on many lenses, providing maximum depth of field but requiring significant light or very long exposure times. Whether you're comparing f/22 to other f-stops for exposure settings, understanding f/22 aperture characteristics for photography, or using an f-stop converter for photography calculations, f-stop conversions are fundamental to photography exposure measurements.

The f/22 aperture is used in specialized photography situations requiring extreme depth of field, such as macro photography or landscape photography with very close foreground elements. The f/22 aperture's extremely narrow opening provides maximum depth of field but requires ample light or very long exposure times, and may result in some image quality degradation due to diffraction.