---
product_id: 265568227
title: "Cz Garden Supply 8.3\" x 11.75\" LARGE 3X Fresnel Lens FULL PAGE Magnifier - Solar Oven/DIY Projection TV PLANS (1 pack PREMIUM GRADE Large Lens)"
brand: "cz garden supply"
price: "KSh4362"
currency: KES
in_stock: true
reviews_count: 5
category: "Cz Garden Supply"
url: https://www.desertcart.co.ke/products/265568227-cz-garden-supply-8-3-x-11-75-large-3x
store_origin: KE
region: Kenya
---

# Ultra-thin 0.76 cm plastic lens 8.3" x 11.75" large viewing area 3X magnification for solar ignition Cz Garden Supply 8.3" x 11.75" LARGE 3X Fresnel Lens FULL PAGE Magnifier - Solar Oven/DIY Projection TV PLANS (1 pack PREMIUM GRADE Large Lens)

**Brand:** cz garden supply
**Price:** KSh4362
**Availability:** ✅ In Stock

## Summary

> ☀️ See bigger, start fires faster, and create smarter with the ultimate full-page Fresnel lens!

## Quick Answers

- **What is this?** Cz Garden Supply 8.3" x 11.75" LARGE 3X Fresnel Lens FULL PAGE Magnifier - Solar Oven/DIY Projection TV PLANS (1 pack PREMIUM GRADE Large Lens) by cz garden supply
- **How much does it cost?** KSh4362 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/265568227-cz-garden-supply-8-3-x-11-75-large-3x)

## Best For

- cz garden supply enthusiasts

## Why This Product

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

## Key Features

- • **Maximize Your Vision:** Premium full-page Fresnel lens delivers crystal-clear 3X magnification for reading, crafting, and precision work.
- • **Versatile Innovation:** Ideal for everything from reading fine print to building solar ovens and DIY projection TVs—unleash your creativity.
- • **Lightweight & Portable:** At just 49.9g and ultra-thin design, carry powerful magnification anywhere without bulk or hassle.
- • **Harness the Sun’s Power:** Large surface area focuses sunlight to ignite fires or melt metals in under a minute—perfect for eco-friendly DIY solar projects.
- • **Exclusive DIY Plans Included:** Get instant access to 6 expert solar oven and projection TV blueprints with your purchase—join the maker elite.

## Overview

The Cz Garden Supply 8.3" x 11.75" Large 3X Fresnel Lens is a premium-grade, ultra-thin plastic magnifier designed for versatile light-gathering and magnification tasks. Weighing just 49.9g, it offers a large viewing area perfect for reading, solar ignition, and DIY projects. Included with purchase are exclusive plans for solar ovens and projection TVs, making it a must-have tool for professionals and makers seeking innovative, eco-friendly solutions.

## Description

Fresnel lenses are most often used in light gathering applications, such as condenser systems or emitter/detector setups. Fresnel lenses can also be used as magnifiers or projection lenses. These lenses are also great for enlarging fine print in books, magazines, maps, telephone directories, recipes, etc. This can really be a great and creative gift to children as a toy and those who need visual aid. This fresnel lens is also very good for experiments of gathering solar energy. Thanks to its large size, it usually can start a fire within seconds on a normal sunny day. I personally can use it to start melting an aluminum can around 45 seconds under sunshine. Try it your way to boil a bottle of water, start a camp fire, or build a water heat pipe, etc. - Link, user name & password for the 6 plans will be emailed to you.

Review: Used these fresnel lenses to make my own "better beamer" flash extender. They want 100$ for one of those extenders and I made one for under 16$, and I have 4 lenses left over for later.
Review: Premium Fresnel Lens 8 Pack Set. Large Full Page 8.3" x 11.75" Sheets with Credit Card Size, Bookmark Magnifier was all that was promised. Each one of the sizes was useful for different purposes. Even the little credit card size version to put in your wallet made reading small print easy and it even worked to light newspaper and kindling on fire in less than 60 seconds.

## Features

- 1 PIECE PREMIUM FRESNEL LENS SET includes 1 LARGE 8.3" x 11.75" magnifying sheet
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IITFX02 |
| Best Sellers Rank | #80,740 in Health ( See Top 100 in Health ) #164 in Reading Aids & Magnifiers |
| Brand | Cz Garden Supply |
| Color | 1pack |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,040) |
| Date First Available | 13 January 2015 |
| Item Weight | 49.9 g |
| Material | Plastic |
| Model Number | CzFLA4-1 |
| Product Dimensions | 28.96 x 20.32 x 0.76 cm; 49.9 g |

## Product Details

- **Batteries required?:** No
- **Brand:** Cz Garden Supply
- **Colour:** 1pack
- **Item weight:** 50 g
- **Lens material:** Polyvinyl Chloride (PVC)

## Images

![Cz Garden Supply 8.3" x 11.75" LARGE 3X Fresnel Lens FULL PAGE Magnifier - Solar Oven/DIY Projection TV PLANS (1 pack PREMIUM GRADE Large Lens) - Image 1](https://m.media-amazon.com/images/I/614tA0wbrGL.jpg)

## Questions & Answers

**Q: What is the focal length? Thank you.**
A: The groove pitch is 0.5mm. The focal length is 320mm

**Q: Cant I cut this into a smaller sizes with an exacto knife or box cutter?**
A: Wow, a bunch of wrong answers. Not only is it possible to trim the edges and use the center portion, it is even possible to cut it into sections, and each section will continue to function. The only difference is that a lens cut from a location not in the center will need to be held over to one side. If it isn't apparent what the total effect will be, just imagine that you took the lens and covered half of it with paper and tape, and then covered have of the remaining rectangular piece, so that once again you have a square section. Obviously this section has to be held to one side, and it probably wouldn't work very well for a reading lens. But you certainly could still use it to start a fire.

**Q: what is the magnification**
A: Unlike with a telescope or a microscope, a magnifying lens's magnification varies as you move closer to or farther from the object you are observing.  I can tell you that it can project the light from the sun to a point about 1/2" in diameter.  This is a concentration, compared to the size of the rectangular lens, of almost a factor of 500.  That doesn't mean that you can see somethings 500 times its size by looking through the lens.  What is means is that it has a huge amount of light gathering surface and focuses it on a very small spot.  This may not be the answer you are looking for; but I can't think of a better way of stating it.  It can ignite a fire in a second or so.

**Q: How can it be used for 'do it yourself solar cooking'?would this size be bigenough to cook?wouln't it need reflector to reflect to the bottom of pan?**
A: I have seen a fresnel lens used to cook (at burning man). They pointed the beam at a cast iron and cast iron pans are good at dispersing the heat evenly across the pan. It probably took a while for it to heat up but it was definitely working.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***. on 29 July 2020*

Used these fresnel lenses to make my own "better beamer" flash extender. They want 100$ for one of those extenders and I made one for under 16$, and I have 4 lenses left over for later.

### ⭐⭐⭐⭐⭐ Review
*by G***R on 21 June 2019*

Premium Fresnel Lens 8 Pack Set. Large Full Page 8.3" x 11.75" Sheets with Credit Card Size, Bookmark Magnifier was all that was promised. Each one of the sizes was useful for different purposes. Even the little credit card size version to put in your wallet made reading small print easy and it even worked to light newspaper and kindling on fire in less than 60 seconds.

### ⭐⭐⭐⭐⭐ Review
*by R***Y on 11 March 2020*

I bought the 8.3" x 11.75" Large 3X Fresnel Lens Full Page Magnifier, one for myself, one for my sister, primarily for reading books, prescription bottles, and ingredient panels on products in stores because I have some visual difficulties arising from Lyme Tick Eye Disease. I had NO idea there were so many other great uses for a Fresnel lens which appeal to survivalist/preppers like my sister and me! You can start a fire with it, much like you would using a hand-held magnifying glass, only faster and better! It is extremely useful for reading paper maps on driving trips. It is durable, flexible, and easy to store. I can also use it in my organic garden, to inspect my seedlings, and check my vine fruits for any destructive insects. I plan to buy more this spring for my 3 school-age grandchildren. They can use it to explore nature (insects, leaves, plants, flowers), for their viewing their stamp collections, and for examining fossils or seashells they find on the beach. Makes a great gift for recipients of ANY age! RECOMMENDED!

## Frequently Bought Together

- 8.3" x 11.75" LARGE 3X Fresnel Lens FULL PAGE Magnifier -- Solar Oven/DIY Projection TV PLANS (1 pack PREMIUM GRADE Large Lens)
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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-28*