---
product_id: 36936874
title: "AmScope 4X Plan Achromatic Objective Lens with Knurled Ring"
brand: "amscope"
price: "276 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Am Scope"
url: https://www.desertcart.ro/products/36936874-amscope-4x-plan-achromatic-objective-lens-with-knurled-ring
store_origin: RO
region: Romania
---

# Plan Achromatic Color Correction 160mm Standard Tube Length 4X Magnification Power AmScope 4X Plan Achromatic Objective Lens with Knurled Ring

**Brand:** amscope
**Price:** 276 Lei
**Availability:** ✅ In Stock

## Summary

> 🔍 Elevate your microscopic vision—see details others miss!

## Quick Answers

- **What is this?** AmScope 4X Plan Achromatic Objective Lens with Knurled Ring by amscope
- **How much does it cost?** 276 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/36936874-amscope-4x-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

- • **Reliable & Affordable:** Top-tier optical quality without breaking the bank—join the savvy pros upgrading their gear.
- • **True-to-Scale Imaging:** Plan field correction ensures edge-to-edge flatness—no distortion, no compromises.
- • **Seamless Compatibility:** Fits all DIN/JIS standard compound microscopes with RMS threading for effortless integration.
- • **Crystal-Clear Precision:** Achromatic lens design eliminates color fringing for razor-sharp images.
- • **Macro Photography Ready:** Ideal for extreme macro setups—perfect for APS-C sensor cameras and focus stacking workflows.

## Overview

The 4X Plan Achromatic Objective Lens by United Scope is a DIN-standard, 160mm tube length microscope lens featuring 4X magnification and 0.10 numerical aperture. Its achromatic and plan corrections deliver crisp, color-accurate, and distortion-free images, making it a favorite for both standard microscopy and advanced macro photography setups. Lightweight and compatible with common compound microscopes, it offers professional-grade optics at an unbeatable price point.

## Description

This is a 4X DIN-standard objective lens for compound microscopes. It features achromatic color-correction, and plan field-correction. Features Specifications: Magnification: 4X NA: .10 Thread: RMS Mechanical Tube Length: 160mm Cover Glass Thickness:0.17mm Color Correction: achromatic Field Correction: plan Immersion Medium: none Nosecone: fixed

Review: A good choice for extreme macro photography - I wanted a 4X objective for my Nikon Labophot microscope. After spending a lot of time thinking about getting a CFN objective I read a little about this objective and decided to take a chance. At this price, it really can't be beat. Works great on the Labophot and I would have had to spend several times as much for an objective which was a real improvement over it. I have it hooked up to an APS-C camera. I posted one image of an aphid exactly as it came out of the camera. and one image after using a bit of focus stacking and Photoshop. As you can see, it can just almost fill an APS-C sensor. It may be possible to fill it with a bit more extension than I had. While I have not yet tried to use it for this application this lens is getting a lot of use for extreme macro photography. Typically rather than using a microscope people make direct connections to a camera. The idea here is get a series of adapters and extension tubes to connect the objective 160mm away from a DSLR/Mirrorless camera sensor. Then typically a macro rail such as a Stackshot is used to take a series of photos and a software package like Zerene Stacker is used to make a final image. Since this is a finite lens it does not require a tube lens and is very simple to hook up. Unusual for finite objectives it does not seem to require significant corrections from the eye piece and the fact it was designed to work with a cover slip apparently does not degrade the image much either. At this price point it really is an obvious choice.
Review: Good lens, great customer service - This review is more about the company than it is about the lens. Every source that I respect on the subject of macro photography has had good things to say about this lens. FedEx lost my order, I wrote to the company and Steve Q replied promptly and arranged to have a new one sent right away. Will definitely be ordering from them again.

## Features

- This brand new 4X Plan Achromatic microscope objective lens fits common size (DIN/JIS standard) compound microscopes
- Plan Achromatic Corrections
- Magnification: 4X
- NA: 0.10
- Tube Length: 160mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01G4CCGRC |
| Best Sellers Rank | #32 in Microscope Lenses |
| Date First Available | May 24, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.08 ounces |
| Item model number | PA4XK-V300 |
| Manufacturer | United Scope, LLC |
| Product Dimensions | 2.4 x 1.4 x 1.4 inches |

## Product Details

- **Brand:** AmScope
- **Color:** Gold, Grey
- **Light Source Type:** LED
- **Magnification Maximum:** 4 x
- **Manufacturer:** United Scope, LLC
- **Material:** Glass
- **Objective Lens Description:** Achromatic
- **Power Source:** Battery Powered
- **Real Angle of View:** 45 Degrees
- **UPC:** 840979106385

## Images

![AmScope 4X Plan Achromatic Objective Lens with Knurled Ring - Image 1](https://m.media-amazon.com/images/I/51mkckZCetL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does it come with instructions for attaching it?**
A: No, but i can help a little bit.
This objective is known as a finite objective so you'll have to position it 160mm from the camera sensor.
The other type of objective is a infinite objective which requires a 200mm lens to focus known as a tube lens.
You'll need an RMS adapter, mine is a RMS to M42 for example lots on ebay.
Then you'll need an M42 to whatever your camera mount is.
You'll need some kind of extension tubes to around 160mm between the objective and the cameras sensor. Theres probably a little line on the camera body somewhere to show that
Theres lots more info about this kind of thing here: http://extreme-macro.co.uk/

**Q: Does the objective lens come with a container for it?**
A: Yes a normal objective plastic threaded sleeve

**Q: Can I lower the magnification to 2 times rather than 4 or would I need to buy a different lens for that?**
A: Yes you can. You need to shorten the overall distance from lens to sensor but yes you can. A set of bellows really helps with this.

**Q: Will this fit an old b&l dynazoom. i want to lessen the magnification from the 10x to 4x?**
A: Look at your 10x lens. To fit three things should match: the optical design must match - if you see an infinity symbol on your 10x lens -- the lens do NOT match.
Next the the focal length must match, if you see 170/ on you 10x lens - your microscope is RMS, it can work - but requires an adapter - not worth it . 
If ups see 160/ it is OK, and also the third thing - the thread - most likely will match as well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good choice for extreme macro photography
*by J***H on October 19, 2017*

I wanted a 4X objective for my Nikon Labophot microscope. After spending a lot of time thinking about getting a CFN objective I read a little about this objective and decided to take a chance. At this price, it really can't be beat. Works great on the Labophot and I would have had to spend several times as much for an objective which was a real improvement over it. I have it hooked up to an APS-C camera. I posted one image of an aphid exactly as it came out of the camera. and one image after using a bit of focus stacking and Photoshop. As you can see, it can just almost fill an APS-C sensor. It may be possible to fill it with a bit more extension than I had. While I have not yet tried to use it for this application this lens is getting a lot of use for extreme macro photography. Typically rather than using a microscope people make direct connections to a camera. The idea here is get a series of adapters and extension tubes to connect the objective 160mm away from a DSLR/Mirrorless camera sensor. Then typically a macro rail such as a Stackshot is used to take a series of photos and a software package like Zerene Stacker is used to make a final image. Since this is a finite lens it does not require a tube lens and is very simple to hook up. Unusual for finite objectives it does not seem to require significant corrections from the eye piece and the fact it was designed to work with a cover slip apparently does not degrade the image much either. At this price point it really is an obvious choice.

### ⭐⭐⭐⭐⭐ Good lens, great customer service
*by J***L on August 29, 2023*

This review is more about the company than it is about the lens. Every source that I respect on the subject of macro photography has had good things to say about this lens. FedEx lost my order, I wrote to the company and Steve Q replied promptly and arranged to have a new one sent right away. Will definitely be ordering from them again.

### ⭐⭐⭐⭐ Good quality objective with shallow depth of field.
*by A***X on July 18, 2019*

I have adapted this to use on a sony a6400 and it produce sharp images but the DOF is very shallow so will require focus stacking in order to produce usable images.; so it's only really useful on static subjects. Also, FYI just in case it wasn't clear, there is no control over aperture or focus distance.

## Frequently Bought Together

- AmScope 4X Plan Achromatic Objective Lens with Knurled Ring
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-16*