Photography Photography Camera, Lenses, and Gear Questions and Answers 3

Question 1

What does the 'L' designation on Canon lenses signify?

Accepted Answer

Luxury series with professional-grade optics

Answer

Canon's L-series lenses are their premium professional line, featuring superior optics, build quality, and weather sealing.

Question 2

Which autofocus motor type is generally the fastest and quietest in modern lenses?

Accepted Answer

Ultrasonic or silent wave motor

Answer

Ultrasonic motors (USM for Canon, SWM for Nikon) use high-frequency vibrations for fast, near-silent autofocus performance.

Question 3

What is the function of a camera's mirror lock-up feature?

Accepted Answer

To reduce vibration caused by mirror movement during exposure

Answer

Mirror lock-up flips the mirror out of the way before the exposure, eliminating the slight vibration that mirror slap can cause during long exposures.

Question 4

What does a higher Abbe number indicate about a lens element?

Accepted Answer

Lower chromatic aberration

Answer

A higher Abbe number means the glass has lower dispersion, which results in less chromatic aberration and sharper color reproduction.

Question 5

Which memory card type offers the fastest sustained write speeds for professional video recording?

Accepted Answer

CFexpress Type B

Answer

CFexpress Type B cards use the PCIe interface and can achieve sustained write speeds exceeding 1,400 MB/s, far surpassing other consumer card formats.

Photography Practice Test

Photography Practice Test

Photography Photography Camera, Lenses, and Gear Questions and Answers 3