Lens Abberations

Question 1

What are Lens Aberrations and provide examples!

Answer 1

As your aperture closes, more and more light from the sides of your lens will be blocked, never making it to your camera sensor. Only the light from the center area will pass through and form your photo

• vignetting
• spherical
• aberration
• field curvature
• coma
• distortion
• astigmatism
• colour fringing

Question 2

Smaller apertures will have_____

Answer 2

fewer aberrations

Question 3

Starburst & Sunstar Effects

Answer 3

for every aperture blade in your lens, you’ll end up with a sunbeam if you photograph a small, bright point of light, such as the sun when it is partly blocked

Question 4

Lenses with ODD NUMBER aperture blades ____

Answer 4

results in 2x as many sunbeams

Question 5

In order to get the strongest possible starburst _____

Answer 5

use a small aperture

Question 6

Straight vs Rounded Aperture Blades

Answer 6

Rounded

results in a more pleasant out-of-focus background blur

Straight

typically produce more defined rays of light and better starbursts