---
product_id: 88151999
title: "Optical Glass Triangular Prism Refactor for Teaching Light Spectrum, Photography Effects. K9 Crystal Clarity, 140mm"
brand: "mrg"
price: "HK$28"
currency: HKD
in_stock: false
reviews_count: 8
url: https://www.desertcart.hk/products/88151999-optical-glass-triangular-prism-refactor-for-teaching-light-spectrum-photography
store_origin: HK
region: Hong Kong
---

# 140mm K9 Crystal clarity Multi-purpose photography prop Smudge-free, hand-inspected finish Optical Glass Triangular Prism Refactor for Teaching Light Spectrum, Photography Effects. K9 Crystal Clarity, 140mm

**Brand:** mrg
**Price:** HK$28
**Availability:** ❌ Out of Stock

## Summary

> 🌟 Capture light, color, and creativity like never before!

## Quick Answers

- **What is this?** Optical Glass Triangular Prism Refactor for Teaching Light Spectrum, Photography Effects. K9 Crystal Clarity, 140mm by mrg
- **How much does it cost?** HK$28 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/88151999-optical-glass-triangular-prism-refactor-for-teaching-light-spectrum-photography)

## Best For

- mrg enthusiasts

## Why This Product

- Trusted mrg brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flawless Finish:** Each prism is hand-inspected and comes with a microfiber cloth to keep your visuals crystal clear.
- • **Lead-Free & Safe:** Eco-conscious design with zero lead content, ensuring a safe and sustainable choice for educators and creators.
- • **Photo-Ready Prop:** Elevate your creative shots with a versatile tool designed to enhance light and color dynamics.
- • **Spectrum Mastery:** Transforms sunlight into vivid rainbows, ideal for science experiments and mesmerizing photography effects.
- • **Prism-Perfect Clarity:** Crafted from premium K9 crystal for unmatched transparency and durability—no fog, no scratches.

## Overview

This 140mm equilateral prism, made from durable and ultra-clear K9 crystal, is perfect for breaking white light into vibrant spectrums. Designed for both educational science experiments and professional photography, it offers smudge-free clarity with a hand-inspected finish and includes a microfiber cloth for maintenance. Lead-free and built to last, it’s the ultimate tool for light manipulation and creative expression.

## Description

Equilateral prisms or Triple Prism are often used for breaking up white light into a spectrum of colors, while right angle prisms are generally used for measuring critical angles and observing total internal reflection such as in fiber optics.

## Features

- [Multi Purpose] - Use the Sunlight for the Best Rainbow Science Experiment Effects. Use as Photo Tool to Create better Photography scenes.
- [Made from K9 Crystal] - Unlike Glass, K9 Crystal is much more durable and clear. Zero Fogginess and Scratches. Contains NO LEAD.
- [Photography Prop] - Prisms can be used for photography as well as creating the light spectrum. For BEST Rainbow results, use the Sun.
- [Smudge Free] - Each Prism is hand inspected. A Micro Fiber cloth will be included in each carrying case to ensure prism maintains flawlessness.

## Images

![Optical Glass Triangular Prism Refactor for Teaching Light Spectrum, Photography Effects. K9 Crystal Clarity, 140mm - Image 1](https://m.media-amazon.com/images/I/41kH3JDyX5L.jpg)
![Optical Glass Triangular Prism Refactor for Teaching Light Spectrum, Photography Effects. K9 Crystal Clarity, 140mm - Image 2](https://m.media-amazon.com/images/I/41a8xY-Z5AL.jpg)
![Optical Glass Triangular Prism Refactor for Teaching Light Spectrum, Photography Effects. K9 Crystal Clarity, 140mm - Image 3](https://m.media-amazon.com/images/I/41i+t0ksE1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    As described, but box is broken
  

*by A***R on Reviewed in the United States on February 27, 2019*

The prism is beautiful and very nice! Unfortunately, the box it arrived in is battered and torn on one end. One side of the box was completely torn when I opened the package. The shipping package is in good shape, so it seems as if the prism may have been returned previously.  Even then I'm not sure why the box would be broken the way it is on the end. I am thankful that the prism is in good condition, but I am disappointed with the box. It will be impossible to store the prism safely in the box that was provided with it.

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    A little pricey
  

*by Z***N on Reviewed in the United States on November 7, 2019*

It works for interesting camera tricks, but feels a bit overpriced for what you get – so for me, the value isn't there. I paid $11 and feel like $5-6 would be much more fair (and still allow for a hefty profit).

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    seems like a decent prism
  

*by J***. on Reviewed in the United States on July 17, 2019*

though I'm not getting solid rainbows like I get from even a good window are the right angle.  using it to teach a preschooler about light.

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**Shop now:** [https://www.desertcart.hk/products/88151999-optical-glass-triangular-prism-refactor-for-teaching-light-spectrum-photography](https://www.desertcart.hk/products/88151999-optical-glass-triangular-prism-refactor-for-teaching-light-spectrum-photography)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-26*