5-30mm RMS Extender Ring for Olympus Leica Zeiss Microscope

Key Benefits

• Extends parfocal length from 5mm to 32mm, matching varying objective and tube length requirements
• Universal RMS inner and outer threads ensure compatibility with Olympus, Zeiss, Nikon, Leica and similar microscopes
• Aluminum alloy construction provides strength, durability, and lightweight handling
• Maintains focus alignment when adding accessories or changing objective positions
• No need to replace objectives when adjusting for extended working distance or camera integration

Application Scenarios

• Adjusting focus alignment when mounting a digital camera or auxiliary lens behind an objective
• Compensating for parfocal length mismatch when swapping objectives between microscope models
• Enabling extended working distance in metallurgical or industrial inspection setups
• Supporting field use where quick, reliable adjustments are needed without tooling
• Integrating microscope accessories such as ring lights, Barlow lenses or camera adapters

Who It Is For

• Electronics manufacturers using microscope systems for PCB and SMD inspection
• Metallurgy and quality control labs requiring consistent parfocal alignment
• Research and teaching labs with mixed microscope models and objective sets
• Field technicians performing on-site inspection with portable microscope setups
• Users integrating digital cameras or imaging systems into existing microscope bodies

Problems It Solves

• Objective focus shift when adding camera adapters or lighting systems
• Incompatibility between microscope models due to differing parfocal lengths
• Need to replace objectives to match new optical path lengths
• Loss of parfocal stability when changing accessories or mounting cameras
• Inability to extend working distance without altering the optical train

Technical Features

• Made from premium aluminum alloy for strength and light weight
• Universal RMS inner and outer threads for broad compatibility
• Parfocal extension range: 5mm to 32mm across total lengths of 9mm to 36mm
• Designed for microscopes requiring up to 75mm parfocal length
• Smooth, precise fit ensures no optical misalignment during use
• No tool required for installation; simple screw-on design
• Maintains optical axis alignment during repeated use

Specifications

Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.

Customization Options

• Available in multiple total lengths (9mm-36mm) to match specific parfocal needs
• Can be supplied with or without protective caps for storage and transport
• Custom thread sizes available upon request for non-standard microscope models

Comparison With Other Options

Use Guide

• Ensure the microscope and objective have RMS threads before installation
• Clean the threads on both the objective and extender ring before screwing on
• Hand-tighten the ring to avoid thread damage; do not use tools
• Check focus alignment after installation by observing the image at multiple magnifications
• Use only with objectives and systems that support up to 75mm parfocal length