CFP Technology & Tools 2

Question 1

Which camera sensor characteristic most directly determines the ability to capture fine detail in a fingerprint examination-quality photograph?

Accepted Answer

Sensor resolution (pixel count relative to subject area)

Answer

Examination-quality images require sufficient pixel resolution across the subject, typically 1000 ppi for fingerprints.

Question 2

A forensic photographer needs to document a shoe impression in soil. Which lighting tool and technique is most appropriate?

Accepted Answer

Off-camera flash held at a low oblique angle

Answer

Low-angle oblique lighting from an off-camera flash creates shadows that reveal three-dimensional impression detail.

Question 3

What is the primary advantage of capturing crime scene images in RAW format rather than JPEG?

Accepted Answer

RAW retains unprocessed sensor data, allowing lossless adjustment and stronger authentication

Answer

RAW preserves all original sensor data without lossy compression, supporting both image quality and evidentiary integrity.

Question 4

Which filter is typically paired with an alternate light source (ALS) at 450 nm to visualize fluorescing biological stains?

Accepted Answer

Orange or yellow barrier filter

Answer

An orange or yellow barrier filter blocks the reflected blue excitation light so only the fluorescence is recorded.

Question 5

When photographing evidence at a 1:1 reproduction ratio, which piece of equipment is essential?

Accepted Answer

A macro lens capable of life-size magnification

Answer

True macro lenses achieve 1:1 magnification, rendering the subject at life size on the sensor.

(CFP) Certified Forensic Photographer Practice Test