Neewer

Neewer Triangular Prism 2.4" K9 Crystal Photography

Name: Neewer Triangular Prism 2.4" K9 Crystal Photography
Brand: Neewer

★★★★★4.3 (195 reviews)

3oz

Add stunning rainbow effects and creative light flares to your photos with this portable K9 crystal prism.

$10.99*

Check availability

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The Neewer 2.4" Triangular Prism is a simple yet effective creative accessory for photographers looking to introduce organic rainbow effects, light flares, and color casts directly in-camera. Crafted from K9 optical crystal glass—a material known for its high clarity and excellent light transmission—the prism refracts incoming light and splits it into a full visible spectrum, producing vivid bands of color that can dramatically transform portraits, landscapes, and artistic compositions without any post-processing.

Measuring 2.4 inches in length with a 1.3" equilateral triangle base and weighing just 3 ounces, the prism is small enough to slip into a pocket or accessory pouch. The included storage case protects the polished glass surfaces from scratches when it's not in use. In practice, you hold the prism near the front element of your lens and angle it toward a light source while shooting—slight rotations and tilts produce different intensities and placements of rainbow streaks across your frame. It also doubles as an educational tool for demonstrating light refraction and spectrum analysis, making it useful beyond photography alone.

Key Features

【Colorful Spectrum】 Triangular prism refracts a light source and splits it into different colors, hence a full spectrum of rainbow colors will appear in your photography

【Solid Construction】 With a 2.4" (6cm) length, a 1.3" x 1.3" x 1.3" (3.4 x 3.4 x 3.4cm) equilateral triangle base, and a 3oz (85g) weight, the long prism is easy to control and stands stably on the table

【Clear Optical Glass】 Made of K9 optical glass crystal, this prism is exceptionally clear and features better light transmission

【Broad Application】 Designed to add creative effects to your photoshoots, including rainbows, lens flare, and color cast. Perfect for portraits, album covers, wedding photos, landscapes, science projects, light analysis, and more

【Package Contents】 1 x 2.4" Triangular Prism, 1 x Storage Case

Specifications

Material

K9 Crystal Optical Glass

Length

2.4 inches (6 cm)

Base Dimensions

1.3" x 1.3" x 1.3" (3.4 x 3.4 x 3.4 cm) Equilateral Triangle

Weight

3 oz (85 g)

Package Contents

1x Triangular Prism, 1x Storage Case

Pros & Cons

👍 Pros

Compact 2.4-inch size makes it easy to hold near the lens with one hand while shooting
K9 optical glass provides excellent clarity and light transmission for vivid rainbow effects
Includes a protective storage case to prevent scratches during transport
Lightweight at just 3 oz so it adds virtually no burden to your camera bag
Flat equilateral triangle base allows it to stand upright on a table for hands-free experimentation

👎 Cons

Effects depend heavily on available light, producing minimal results in dim or overcast conditions
No mounting adapter included so you must hold it manually against the lens
The 2.4-inch length offers limited surface area, which can make precise positioning tricky on larger lenses
Glass surface shows fingerprints quickly, requiring frequent cleaning during use

Frequently Asked Questions

How do I use the Neewer triangular prism with my camera?

Hold the prism close to the front of your lens at various angles while shooting. Rotating and tilting it will refract ambient or direct light to create rainbow streaks, flares, and color casts in your frame.

Does the prism scratch easily?

The K9 optical glass is relatively durable, but it can pick up scratches if stored loosely with other gear. A storage case is included to help protect it when not in use.

What light conditions work best with this prism?

Strong, directional light sources produce the most vivid effects. Sunlight, window light, or studio strobes aimed toward the prism will generate pronounced rainbow spectrums and flares.

Is this prism only useful for photography?

No. It also works well for science demonstrations and educational light-refraction experiments, though it is primarily marketed as a creative photography accessory.