---
product_id: 34112082
title: "AmScope 20X Plan Achromatic Objective Lens with Knurled Ring"
brand: "amscope"
price: "C$8194"
currency: NIO
in_stock: true
reviews_count: 6
category: "Am Scope"
url: https://www.desertcart.ni/products/34112082-amscope-20x-plan-achromatic-objective-lens-with-knurled-ring
store_origin: NI
region: Nicaragua
---

# 0.40 Numerical Aperture (NA) 20X Magnification 160mm Mechanical Tube Length AmScope 20X Plan Achromatic Objective Lens with Knurled Ring

**Brand:** amscope
**Price:** C$8194
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate your microscopic vision — see what others miss!

## Quick Answers

- **What is this?** AmScope 20X Plan Achromatic Objective Lens with Knurled Ring by amscope
- **How much does it cost?** C$8194 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/34112082-amscope-20x-plan-achromatic-objective-lens-with-knurled-ring)

## Best For

- amscope enthusiasts

## Why This Product

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

## Key Features

- • **Wide Compatibility:** Fits standard DIN/JIS compound microscopes, making upgrades seamless and hassle-free.
- • **Crystal-Clear Precision:** Achromatic color correction ensures vibrant, distortion-free imaging for professional-grade analysis.
- • **Optimized Field of View:** Plan field correction delivers edge-to-edge sharpness, so no detail goes unnoticed.
- • **Compact Working Distance:** 1.16mm optical working distance balances magnification and sample accessibility perfectly.
- • **Robust Build with Knurled Ring:** Ergonomic knurled ring offers secure grip and precise focusing under any lab condition.

## Overview

The AmScope 20X Plan Achromatic Objective Lens is a high-precision microscope accessory designed for DIN/JIS standard compound microscopes. Featuring 20X magnification, a 0.40 numerical aperture, and plan achromatic corrections, it delivers sharp, color-accurate images with a 160mm mechanical tube length. Its knurled ring ensures easy handling, making it an essential upgrade for professionals seeking reliable, detailed microscopic observation.

## Description

This is a 20X DIN-standard objective lens for compound microscopes. It features achromatic color-correction, and plan field-correction. Features & Specifications: Magnification: 20X NA: .40 Optical Working Distance: 1.16mm Thread: RMS Mechanical Tube Length: 160mm Cover Glass Thickness:0.17mm Color Correction: achromatic Field Correction: plan Immersion Medium: none Nosecone: spring

Review: good value - good cheap lens i use for extreme macro
Review: False advertising by desertcart.com NOT NEW - This was clearly a return and NOT NEW as described Features & details This brand new 20X Plan Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes Plan Achromatic Corrections Magnification: 20X It arrived without its protective plastic cover. It was not threaded correctly into the black cap. It has been clearly damaged by someone rotating the objective into the slide or platform of the microscope. It was also dirty on the lens (see attached video and pictures) to the point it almost appeared to be scratched. I really hope it wasnt someones semen i had to clean off this "BRAND NEW" objective lens. Beyond paying full price for a used item and the damage to the housing of the lens, the objective itself works fine. Dont lie and say what you are selling is new!

## Features

- This brand new 20X Plan Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes
- Plan Achromatic Corrections
- Magnification: 20X
- NA: 0.40
- Tube Length: 160mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01G4CC4Z6 |
| Best Sellers Rank | #114 in Microscope Lenses |
| Brand | AmScope |
| Color | Black, Multicolor, Off-White, Silver |
| Compatible Devices | Personal Computer, Laptop |
| Customer Reviews | 3.8 out of 5 stars 10 Reviews |
| Enclosure Material | Glass |
| Light Source Type | LED |
| Magnification Maximum | 20 x |
| Manufacturer | United Scope, LLC |
| Manufacturer Part Number | PA20XK-V300 |
| Material | Glass |
| Model Number | PA20XK-V300 |
| Objective Lens Description | Achromatic |
| Power Source | Battery Powered |
| UPC | 840979106361 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** AmScope
- **Color:** Black, Multicolor, Off-White, Silver
- **Compatible Devices:** Personal Computer, Laptop
- **Light Source Type:** LED
- **Magnification Maximum:** 20 x
- **Material:** Glass
- **Number of Items:** 1
- **Objective Lens Description:** Achromatic
- **Power Source:** Battery Powered
- **Unit Count:** 1.0 Count

## Images

![AmScope 20X Plan Achromatic Objective Lens with Knurled Ring - Image 1](https://m.media-amazon.com/images/I/61tzzGMDXvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ good value
*by S***N on June 8, 2026*

good cheap lens i use for extreme macro

### ⭐ False advertising by Amazon.com NOT NEW
*by P***N on December 18, 2021*

This was clearly a return and NOT NEW as described Features & details This brand new 20X Plan Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes Plan Achromatic Corrections Magnification: 20X It arrived without its protective plastic cover. It was not threaded correctly into the black cap. It has been clearly damaged by someone rotating the objective into the slide or platform of the microscope. It was also dirty on the lens (see attached video and pictures) to the point it almost appeared to be scratched. I really hope it wasnt someones semen i had to clean off this "BRAND NEW" objective lens. Beyond paying full price for a used item and the damage to the housing of the lens, the objective itself works fine. Dont lie and say what you are selling is new!

### ⭐⭐⭐⭐⭐ Mixed feelings
*by W***E on May 14, 2020*

As a beginner (74 year old) I bought a new AmScope T490B-DKO 40X-2000X Trinocular Compound Darkfield Microscope with Oil Condenser, which had 4X, 10X, 40X, and 100X oil, all Four are DIN Achromatic Objectives. Being a beginner I read everything I could on microscopes, and a customer review on the AmScope A20X 20X Achromatic Microscope Objective said, “Excellent objective between 10x and 40x. Great for microlife. Wanted a Plan obj. but not available from Amscope in this magnification. I have to admit I don't miss the fact that it is not Plan. I gladly recommend this objective.” Yes, what he said about a Plan obj. sounded good, and now things have changed, the Plan obj. is now offered. After reading more about microscopes, this ($53.99) sounded better than the simple 20X ($23.99) since I want to use a camera on pond water monsters. It is fun to learn, but I suspect I had over idealized the Plan optics. Today I got a first chance to try it out on a few slides. Yes, it is beautiful, and the views are flat out to the edges, but it was not parfocal with my other objectives. This means that when I go from 10x to 20x I will need to refocus, then when I go to 40x I will need to refocus again. I have mixed feelings so far. I hope in the next few weeks I will get over this irritation, and it will become automatic that I turn the focus in the right direction. I suppose it will be like riding a bike, but for now it is a big distraction. I have yet to take photos, so that may be nice too. It may be that I will change all my objective lens so it will then become parfocal again. But for now I have also purchased a 60x non-Plan so I am running out of places to mount all these objectives. I need to take out the 100x and the 60x to use this new 20x. A more expensive microscope would give me 5 places for objectives, but after all I am a beginner. I will need to do this hobby for a few years and then see where it takes me. I give the objective a rating of 5, because it is beautiful and it seems well made (but I am a beginner). I still have mixed feelings, but I is my fault for not knowing more about focus.

## Frequently Bought Together

- AmScope 20X Plan Achromatic Objective Lens with Knurled Ring
- AmScope 60X Plan Achromatic Objective Lens with Knurled Ring

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-07-08*