Camera, Lenses, and Gear Flashcards

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

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

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

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

Answer: An electronic viewfinder (EVF)

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

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

Answer: Separate autofocus activation from the shutter button

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.

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

Answer: Variable ND filter

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

What is the minimum focus distance of a lens?

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

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.

What does 'TTL' stand for in the context of camera flash systems?

Answer: Through The Lens

TTL (Through The Lens) metering uses the camera's sensor to measure flash exposure through the lens, automatically adjusting flash power for proper exposure.

Which autofocus mode is best suited for tracking a moving subject?

Answer: Continuous AF (AF-C / AI Servo)

Continuous AF (called AF-C by Nikon or AI Servo by Canon) continuously adjusts focus as the subject moves, making it ideal for action and sports photography.