Unit 1.8

Question 1

Name two types of flare.

Answer 1

1. Mechanical

2. Optical

Question 2

Which type of flare is caused by a small reflective scratch on a lens shade?

Answer 2

Mechanical

Question 3

Which type of flare is generally present in most lenses with more than one element?

Answer 3

Optical flare

Question 4

Why are lenses coated with transparent colored material?

Answer 4

The coating minimizes internal reflections and thereby reduces optical flare.