---
product_id: 27696676
title: "Double Convex Lens, 300mm Focal Length, 3\" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs"
brand: "eisco"
price: "€ 19.19"
currency: EUR
in_stock: true
reviews_count: 4
category: "Eisco"
url: https://www.desertcart.ie/products/27696676-double-convex-lens-300mm-focal-length-3-75mm-diameter-spherical
store_origin: IE
region: Ireland
---

# 300mm focal length for sharp convergence Optically worked, polished glass with ground edges 3" (75mm) diameter precision lens Double Convex Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs

**Brand:** eisco
**Price:** € 19.19
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate your optics game — see science in a new light!

## Quick Answers

- **What is this?** Double Convex Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs by eisco
- **How much does it cost?** € 19.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/27696676-double-convex-lens-300mm-focal-length-3-75mm-diameter-spherical)

## Best For

- eisco enthusiasts

## Why This Product

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

## Key Features

- • **Crystal-Clear Optics:** Experience flawless light refraction with premium optically worked glass.
- • **Generous 3" Diameter:** Large lens surface ensures maximum light capture and clarity.
- • **Precision 300mm Focal Length:** Achieve perfect image convergence every time for classroom demos.
- • **Durably Polished & Ground Edges:** Engineered for safety and longevity in active learning environments.
- • **Classroom-Ready Science Essential:** Trusted by educators to bring optics concepts vividly to life.

## Overview

This Eisco Labs Double Convex Lens features a 300mm focal length and a 3-inch diameter, crafted from high-quality optically worked glass with polished, ground edges. Designed specifically for physics classrooms, it delivers precise light convergence and durability, making it an essential tool for hands-on optics demonstrations.

## Description

Double Convex Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs: desertcart.com: Industrial & Scientific

Review: Good fire making kit - Nice little real glass magnifying lens.
Review: Arrived chipped - Although it was packed well, I am inclined to believe there is no QA prior to shipment. This arrived clearly chipped and affects the view

## Features

- DOUBLE CONVEX || Highly polished, double convex lens
- SPHERICAL || Lens measures 3" (75mm) in diameter
- 300MM FOCAL LENGTH || Converging lens with a 300mm focal length
- OPTICALLY WORKED GLASS || Made of high quality, optically worked glass. Highly polished with ground edges
- GREAT FOR PHYSICS CLASSROOMS || This optically true lens is excellent for physics classroom demonstrations in optics and light refraction

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01BW0FKM4 |
| Best Sellers Rank | #545,940 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #406 in Science Classroom Optics Kits |
| Date First Available | February 17, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.46 ounces |
| Item model number | PH0534RCV30 |
| Manufacturer | Eisco |
| Product Dimensions | 6 x 4 x 4 inches |

## Product Details

- **Brand:** EISCO
- **Camera Lens Description:** 75 millimetres
- **Focal Length Description:** 300 mm
- **Lens Type:** Standard
- **Maximum Focal Length:** 75 Millimeters

## Images

![Double Convex Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs - Image 1](https://m.media-amazon.com/images/I/61HLK2KvIBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good fire making kit
*by C***B on June 4, 2023*

Nice little real glass magnifying lens.

### ⭐⭐⭐⭐ Arrived chipped
*by T***L on July 19, 2020*

Although it was packed well, I am inclined to believe there is no QA prior to shipment. This arrived clearly chipped and affects the view

### ⭐⭐⭐⭐⭐ Replacement policy..great!
*by M***S on September 20, 2020*

Item came with small chip on the edge. I went through the return process and before i could send it back a new one was on my door step.

## Frequently Bought Together

- EISCO Double Convex Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms
- EISCO Double Convex Lens, 1000mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms
- EISCO Double Convex Lens, 500mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass - Ground Edges, Polished - Great for Physics Classrooms

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*