Standard (50mm)

A lens whose field of view is closest to what the human eye sees. In full-frame terms it is about 50-60mm, and this site uses 50mm as its reference. Perspective is neither exaggerated nor flattened, so it looks the most natural. Perspective is set by how far the camera stands: to frame a person at the same size, a wide lens stands close, a telephoto far, and a 50mm in between.

Camera position seen at an angle from above. The 50mm camera stands about 4.6 m from the character, and its field of view is medium width.

Camera view. The blocks behind look about the same size and distance as they would to the eye.

How it feels

Natural
Plain
Realism
Comfort

When to use it

Showing a character as they are, without exaggeration
Capturing a natural landscape just as it feels to the eye
Shooting in the dark with only the light that is there, no extra lighting
Softly blurring the background with a fast aperture to draw the eye to the character

Not to be confused with

Normal Lens: In practice the two mean almost the same thing. "50mm" is the conventional number; a normal lens is the idea of a lens that feels like ordinary perspective.
Eye Level: Eye level is camera height; 50mm is a lens. Both feel natural, but they are set separately.
35mm Lens: A lens on the border between wide and standard, sometimes considered natural like a standard lens. It takes in a little more than 50mm.

Prompt

Keyword

50mm lens

Descriptive

Shot on a 50mm lens at eye level, natural perspective with no distortion, the background at a normal distance behind the subject.

Try these combinations

50mm + medium shot: a natural conversation
Medium shot on a 50mm lens at eye level, two friends talking at a cafe table, natural perspective, soft daylight
50mm + fast aperture: a character against a blurred background
Portrait on a 50mm lens at f/1.8, the subject sharp, softly blurred background, natural window light