---
product_id: 8991121
title: "Bi-convex Biconvex Lens Set 25mm Diameter 40mm Focal Length for Google Cardboard"
brand: "easy tech solutions"
price: "€ 1.38"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.hr/products/8991121-bi-convex-biconvex-lens-set-25mm-diameter-40mm-focal-length
store_origin: HR
region: Croatia
---

# 25mm Focal Length Prime Lens Design 40mm Max Focal Length Bi-convex Biconvex Lens Set 25mm Diameter 40mm Focal Length for Google Cardboard

**Brand:** easy tech solutions
**Price:** € 1.38
**Availability:** ❌ Out of Stock

## Summary

> 👓 See the Future Clearly!

## Quick Answers

- **What is this?** Bi-convex Biconvex Lens Set 25mm Diameter 40mm Focal Length for Google Cardboard by easy tech solutions
- **How much does it cost?** € 1.38 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/8991121-bi-convex-biconvex-lens-set-25mm-diameter-40mm-focal-length)

## Best For

- easy tech solutions enthusiasts

## Why This Product

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

## Key Features

- • **Crystal Clear Vision:** Enjoy stunning clarity and immersive visuals.
- • **Lightweight & Portable:** Take your VR adventures anywhere with ease.
- • **Unleash Your Creativity:** Ideal for DIY projects and innovative applications.
- • **Transform Your Experience:** Elevate your virtual reality with precision optics.
- • **Perfect Fit for Google Cardboard:** Seamlessly integrate with your favorite VR headset.

## Overview

This Bi-convex Lens Set features a 25mm minimum and 40mm maximum focal length, designed specifically for Google Cardboard, ensuring a prime lens experience that enhances your virtual reality adventures.

## Description



## Features

- These are the exact lenses used in google cardboard

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Minimum Focal Length | 25 Millimeters |
| Lens Design | Prime |
| Maximum Focal Length | 40 Millimeters |

## Product Details

- **Camera Lens Description:** 40 millimetres
- **Maximum Focal Length:** 40 Millimeters
- **Minimum Focal Length:** 25 Millimeters
- **Lens Design:** Prime
- **UPC:** 764966967332

## Images

![Bi-convex Biconvex Lens Set 25mm Diameter 40mm Focal Length for Google Cardboard - Image 1](https://m.media-amazon.com/images/I/31o+tCPr3KL.jpg)

## Questions & Answers

**Q: What do thesee do for the VR experience?**
A: These are lens that you use to install in a custom made VR box, such as Cardboard to turn the image into VR.

**Q: how many lenses does this come with?**
A: 2 lenses

**Q: What is a bisected image?**
A: A single image cut down the middle.

**Q: how much they zoom?**
A: Not sure about exact length but they perfectly fit the Cardboard cutout therefore they meet specification identified: 40mm focal length 25mm diameter.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great lenses, low price and FAST shipping.
*by M***R on March 28, 2015*

These lenses are great. I'm using them for google cardboard and the image is SO clear. If you're trying to find lenses to fit into your cardboard virtual reality headset these are perfect. A low price point had me worried but it's just good business. I'm guessing that the seller shipped them out the same day the order was placed because they were in my mailbox 3 days later. I will absolutely be getting my next set here as well.

### ⭐⭐⭐⭐⭐ Very good lenses, very good price
*by L***. on May 3, 2019*

These are just what I was looking for. I got them to use on a diy version of the Google cardboard and they fit perfectly. They arrived quickly and not a scratch on them. Very clear image, and great price. Thinking of getting a second pair to make another headset.

### ⭐⭐⭐ they work and I'm happy with the purchase
*by P***R on February 1, 2016*

These lenses work for their purpose. One came with an imperfection just off center from the middle of the lense. They both were rough where they were cut out. They do work as intended and I can't see the mark on the one lense when using them in my Google Cardboard. The price is reasonable, but I knocked a star off for the general need for a little polishing. Again, they work and I'm happy with the purchase, just know they aren't $30 lenses.

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**Shop now:** [https://www.desertcart.hr/products/8991121-bi-convex-biconvex-lens-set-25mm-diameter-40mm-focal-length](https://www.desertcart.hr/products/8991121-bi-convex-biconvex-lens-set-25mm-diameter-40mm-focal-length)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-23*