Blur

Question 1

Which of these is the primary effect of blur in an image?

Accepted Answer

To soften details and reduce sharpness

Answer

To make the image appear cartoonish

Answer

To increase the overall brightness of the photo

Answer

To add a vintage, sepia-toned look

Question 2

What camera setting, when set to a wide aperture (small f-number), contributes most to creating a shallow depth of field and thus background blur?

Accepted Answer

Aperture

Answer

Shutter speed

Answer

ISO

Answer

Focal length

Question 3

What type of blur is often used to simulate the effect of motion in a photograph?

Accepted Answer

Motion blur

Answer

Gaussian blur

Answer

Bokeh

Answer

Lens flare

Question 4

In photography, what is 'bokeh' most accurately described as?

Accepted Answer

The aesthetic quality of the blur in the out-of-focus parts of an image

Answer

A type of camera lens that only takes blurry photos

Answer

The sharpest point of focus in a photograph

Answer

A digital filter that adds random noise to an image

Question 5

Which of these is NOT a common reason a photographer might intentionally use blur?

Accepted Answer

To make every single pixel in the image perfectly sharp

Answer

To isolate a subject from its background

Answer

To convey a sense of movement or speed

Answer

To create a dreamlike or abstract effect

Question 6

What is 'Gaussian blur' commonly used for in digital image editing?

Accepted Answer

To create a smooth, even blur across an entire image or selection

Answer

To simulate the look of a fisheye lens

Answer

To precisely sharpen specific edges

Answer

To create a bright, radiating glow around a light source

Question 7

What effect does increasing the shutter speed typically have on motion blur?

Accepted Answer

It reduces motion blur

Answer

It increases motion blur

Answer

It has no effect on motion blur

Answer

It makes motion blur appear in the opposite direction

Question 8

In portrait photography, a shallow depth of field is often desired to achieve what specific type of blur?

Accepted Answer

Background blur (bokeh)

Answer

Motion blur of the subject's hair

Answer

Uniform blur across the entire face

Answer

Blurry, undefined foreground elements

Question 9

Which of these is a type of blur that can be caused by the limitations of a camera's optics rather than intentional camera settings?

Accepted Answer

Lens blur (or optical blur)

Answer

Motion blur

Answer

Gaussian blur

Answer

Zoom blur

Question 10

When editing a photo, applying a 'radial blur' filter typically creates an effect that looks like:

Accepted Answer

Something is spinning or expanding outwards from a central point

Answer

A gentle breeze blowing through leaves

Answer

The entire image is being shaken rapidly

Answer

A painterly, impressionistic style