---
product_id: 541676093
title: "ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc."
brand: "erh india"
price: "R179"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/541676093-erh-india-1-pc-convex-lens-diameter-75-mm-focal
store_origin: ZA
region: South Africa
---

# 50cm focal length for sharp focus 75mm diameter precision lens High-quality glass for crystal-clear vision ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc.

**Brand:** erh india
**Price:** R179
**Availability:** ✅ In Stock

## Summary

> 🔬 See the world sharper, clearer, and smarter with ERH India’s precision lens!

## Quick Answers

- **What is this?** ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc. by erh india
- **How much does it cost?** R179 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/541676093-erh-india-1-pc-convex-lens-diameter-75-mm-focal)

## Best For

- erh india enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Integration:** No assembly required—ready to elevate your optical setups instantly.
- • **Versatile Use Across Fields:** Perfect for auto-focus cameras, projectors, telescopes, and DIY science experiments.
- • **Made in India, Trusted Quality:** Premium glass material ensuring durability and superior optical performance.
- • **Precision Optics for Professionals:** Crafted with exacting standards to deliver crystal-clear images every time.
- • **Enhance Your Creative & Scientific Projects:** Ideal for photographers, hobbyists, and educators aiming to impress.

## Overview

The ERH India Convex Lens features a 75mm diameter and 50cm focal length, crafted from high-quality glass in India. Designed for professionals and enthusiasts alike, it enhances image clarity in auto-focus cameras, projectors, telescopes, and science experiments. This precision lens offers versatile, durable performance with no assembly needed, making it an essential tool for creative and scientific applications.

## Description

High-quality Convex lenses Designed to perfection, our Convex lenses are expertly crafted to meet your diverse needs. Whether you're a scientist, photographer, or hobbyist, our lenses Cameras and Photography: Convex lenses are a fundamental component of cameras and photography equipment. They are used to focus light onto the film or image sensor, forming a sharp image. Different lens configurations, such as zoom lenses and wide-angle lenses, utilize Convex lenses to achieve specific photographic effects. Telescopes: Convex lenses play a crucial role in refracting telescopes, which use lenses to gather and focus light from distant objects. These lenses help to form an enlarged and focused image, allowing astronomers and enthusiasts to observe celestial bodies with greater detail. Projectors: Convex lenses are used in optical projectors to focus and enlarge an image onto a screen or surface. They help to direct and control the path of light, ensuring a sharp and clear projection. Auto-focus Cameras: Convex lenses are used in auto-focus camera systems to detect the correct focus point. By measuring the distance to the subject, the lens can be adjusted automatically to ensure sharp focus.

## Features

- Convex Lens Diameter: 75 mm FoCal Length 50 Cm
- Ideal for Science Experiments and DIY Kits
- High Quality Glass Material and Made in India
- Can be used in various science experiments and science activities
- Convex lens is crafted with precision, providing crystal-clear vision and enhanced visual activity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Age Range Description | Adult |
| Asin | B0C5J6H6Z6 |
| Best Sellers Rank | #130,202 in Electronics (See Top 100 in Electronics) #8,197 in Cameras & Photography |
| Brand | Erh India |
| Customer Reviews | 3.3 3.3 out of 5 stars (32) 3.3 out of 5 stars |
| Educational Objective | creative skills, science |
| Included Components | Convex Lens |
| Is Assembly Required | No |
| Item Dimensions | 7.5 x 7.5 x 1 Centimeters |
| Manufacturer | ERH India |
| Manufacturer Part Number | 1PConvex Lens 50cm |
| Material | Glass |
| Maximum Recommended Age | 600.00 |
| Minimum Recommended Age | 96.00 |
| Model Number | 1PConvex Lens 50cm |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Size | Medium |
| Theme | Science |
| Unit Count | 1.00 Count |

## Product Details

- **Size:** Medium
- **Brand:** Erh India
- **Theme:** Science
- **Age Range (Description):** Adult
- **Material:** Glass

## Images

![ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc. - Image 1](https://m.media-amazon.com/images/I/11qp4eU26ZL.jpg)
![ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc. - Image 2](https://m.media-amazon.com/images/I/41tfWKCaDyL.jpg)
![ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc. - Image 3](https://m.media-amazon.com/images/I/41tcSpe-8CL.jpg)
![ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc. - Image 4](https://m.media-amazon.com/images/I/31cZnl8dmeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Overall it is a good product
*by  on Reviewed in India 7 March 2025*

The lens was very nice I can see through it properly, and the focal length was exact as shown in Amazon. Overall it is a good product.

### ⭐ Lena didn't work as indicated
*by  on Reviewed in India 5 October 2025*

Didn't work; had to return

### ⭐⭐⭐⭐ Clear or good quality 💯
*by  on Reviewed in India 11 August 2025*

Good quality 💯 best for projector

## Frequently Bought Together

- ERH India 1 Pc Convex Lens Diameter-75 mm Focal Length 50 cm for Auto-Focus Cameras, Projectors, DIY Science Experiments etc.
- ESPtronics Convex Lens, 75mm Diameter, 20cm Focal Length, Ideal for Science Experiments, DIY Kits, Cameras, Telescopes Glass, Made in India

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-10*