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The Camera/Postprocessing tab includes the settings that affect the rendered image.

UI Path: ||Render settings window|| > Corona > Camera/Postprocessing tab

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ISO – The ISO is the camera's sensor light sensitivity, and it stands for International Organization for Standardization. Using higher ISO values increases the sensor light sensitivity, resulting in brighter images, but at the same time, it introduces more visible noise (grain) to the image.

Shutter speed [1/s] – The shutter speed controls the time that the camera's shutter is open, allowing light to be captured by the camera's sensor. This time could be either a fraction of a second or more than one whole second. When using a long shutter speed (in other words, exposing the camera's sensor for a significant period of time) and objects are moving, this results in blurred objects along the direction of motion; this is also known as motion blur. This effect is commonly used to communicate the sense of speed or motion. On the other hand, when using a fast shutter speed value (a small fraction of time), you could almost eliminate the object's motion, even from fast-moving objects like cars driving past.

F-stop – The f-stop value, also known as the f-number, is the ratio between the lens focal length and the aperture's diameter. The f stands for focal length and it is written as a fraction; in other words, think of an aperture of f/16 as 1/16 (one-sixteenth), or an aperture of f/8 is 1/8 (one-eighth). Using this same logic, an aperture of f/8 is larger than an aperture of f/16.

For example, if you have a 50mm f/2.8 lens, and the f-stop value is set to f/4, then the diameter of the aperture blades (or diaphragm) in your lens will be 12.5 mm (50mm / 4), whereas setting the f-stop at f/16, the diameter will be only 3.5 mm (50mm / 16), and so on.

Sensor width [mm] – This value describes the physical width of the camera's sensor. The sensor size can be measured in mm or inches. A full-frame sensor measures 36 x 24mm (W x h), and a four-thirds sensor ("4/3") measures 17 x 13mm (W x h).

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Size – This is the size of bloom and glare effect in the percentage of render size.

Bloom intensity – Linear scaling of the bloom effect (large, soft glow around bright areas); values greater than 0.0 enable the effect.

Glare intensity – Linear scaling of the glare effect (more focused glow with streaks); values greater than 0.0 enable the effect.

Color intensity – Adds color variation to the glare effect for additional artistic control.

Color shift – Alternates the colors created by the Color intensity option.

Use legacy (v5) effect – This option reproduces Reproduces the bloom and glare behavior from a previous version.

Threshold – Only pixels brighter than this threshold are affected by bloom and glare. Increase this value to make the effect more localized around the brightest light sources only.

Streak count – Sets the number of streaks in the glare effect.

Rotation [°] – Alters the rotation of the glare effect.

Streak blur – Controls blurring of all streaks in the glare effect. A value equal to 0.0 results in very sharp streaks, while a value equal to 1.0 leads to over-blurred streaks.

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Perspective view focus distance – Determines the focal point distance measured from the camera to the end of the camera's frustum (a.k.a. camera's cone).

Aperture shape – Sets the aperture shape that influences the out-of-focus blur called bokeh. The options are:

Circular – Uses a circular aperture.
Bladed – The result is a polygonal aperture with a given number of sides (blades).
Custom – Uses a custom aperture shape defined by a shader or a texture map.

Bokeh center bias – Introduces an offset for the bokeh effect. Values between -5 and 5 can be used here.

Bokeh vignetting – Introduces a vignette around the bokeh effect. Values between -3 and 3 can be used here.

Bokeh anisotropy – Deforms the bokeh effect. Depending on the value used, it can be deformed on one axis or another. For this option, values between -0.999 and 0.999 can be used.

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