Photography Camera, Lenses, and Gear 3

Question 1

What is the purpose of a UV filter when used on a camera lens today?

Accepted Answer

Primarily lens protection, as modern sensors are not sensitive to UV light

Answer

Modern digital sensors have built-in UV filters, so UV lens filters primarily serve as physical protection for the front element of the lens.

Question 2

On a mirrorless camera, what replaces the optical viewfinder found on DSLRs?

Accepted Answer

An electronic viewfinder (EVF)

Answer

Mirrorless cameras use an electronic viewfinder (EVF) that displays a digital feed from the sensor, allowing real-time preview of exposure and other settings.

Question 3

What does 'back-button focus' allow a photographer to do?

Accepted Answer

Separate autofocus activation from the shutter button

Answer

Back-button focus assigns autofocus to a dedicated button on the camera back, separating it from the shutter release for more control over focus and exposure independently.

Question 4

Which type of neutral density (ND) filter allows photographers to choose the amount of light reduction?

Accepted Answer

Variable ND filter

Answer

A variable ND filter uses two rotating polarizing elements to provide adjustable light reduction across a range of stops without swapping filters.

Question 5

What is the minimum focus distance of a lens?

Accepted Answer

The closest distance from the subject at which the lens can achieve sharp focus

Answer

Minimum focus distance is the closest a subject can be to the camera while still being in sharp focus, which determines how large the subject can appear in the frame.

Photography Practice Test

Photography Practice Test

Photography Camera, Lenses, and Gear 3