Product Photography Studio Lighting Techniques 3

Question 1

What is the inverse square law's practical implication when positioning studio lights for product photography?

Accepted Answer

Doubling the distance from light to subject reduces light intensity to one-quarter

Answer

The inverse square law states that light intensity falls off by the square of the distance — doubling the distance reduces intensity to 1/4, requiring significant exposure compensation.

Question 2

When photographing a shiny metal product like a stainless steel thermos, what is the most common technique to control reflections?

Accepted Answer

Wrap the product in a light tent or shoot through large diffusion panels

Answer

A light tent or large diffusion panels surround the product with soft, even light, eliminating hot spots and unwanted reflections on metallic surfaces.

Question 3

A 3:1 lighting ratio in product photography means:

Accepted Answer

The main light side is three times brighter than the fill side

Answer

A 3:1 ratio means the main-lit side of the product receives three times more light than the fill side, creating moderate contrast with visible shadow detail.

Question 4

What is the function of a grid (honeycomb) attached to a strobe modifier in product photography?

Accepted Answer

Control the spread of light and prevent spill onto the background

Answer

A grid narrows the beam angle of a light modifier, keeping light focused on the subject and preventing unwanted spill onto the background or other areas.

Question 5

Which light position is most likely to cause an undesirable 'hot spot' on a product with a glossy finish?

Accepted Answer

A bare strobe placed at the same angle as the camera

Answer

A bare strobe at the camera axis creates a direct specular reflection on glossy surfaces, appearing as a blown-out hot spot on the product.

Product Photography Practice Test

Product Photography Practice Test

Product Photography Studio Lighting Techniques 3