Products
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- Imaging & Microscopy
  Automated Cell Imagers
  
  Lionheart FX Automated Microscope
  Lionheart LX Automated Microscope
  BioSpa Live Cell Imaging System
  Cell Imaging Multi-Mode Readers
  
  Cytation 5 Cell Imaging Multi-Mode Reader
  Cytation 1 Cell Imaging Multi-Mode Reader
  Product
  Comparison Charts
  
  Imaging & Microscopy
  
  Gen5 Software Version Comparison
- Detection
  Multi-Mode Microplate Readers
  
  Synergy Neo2 Hybrid Multi-Mode Reader
  Cytation Hybrid Multi-Mode Reader
  Synergy H1 Hybrid Multi-Mode Reader
  Synergy HTX Multi-Mode Reader
  Synergy LX Multi-Mode Reader
  Microplate Readers
  
  Epoch 2 Microplate Spectrophotometer
  Epoch Microplate Spectrophotometer
  PowerWave HT Microplate Spectrophotometer
  ELx808 Absorbance Reader
  800 TS Absorbance Reader
  Micro-Volume Plates
  
  Take3 Micro-Volume Plates
  Product Comparison Charts
  
  Multi-Mode Readers
  
  Absorbance Readers
  
  Microplate Spectrophotometers
  
  Gen5 Software Version Comparison
- Liquid Handling
  Multi-Mode Washer Dispensers
  
  EL406 Washer Dispenser
  MultiFlo FX Multi-Mode Dispenser
  Microplate Washers
  
  405 TS Washer
  405 LS Washer
  ELx405 Select Deep Well Washer
  50 TS Washer
  Microplate Dispensers
  
  MultiFlo FX Multi-Mode Dispenser
  MicroFill Dispenser
  Microplate Pipetting Systems
  
  Precision Pipetting System
  Product Comparison Charts
  
  Microplate Washers
  
  Microplate Dispensers
  
  Pipetting Systems
- Software & Robotics
  Robotics
  
  BioSpa 8 Automated Incubator
  BioStack Microplate Stacker
  Software
  
  Gen5 Software Features for Imaging & Microscopy
  Gen5 Software Features for Detection
  Liquid Handling Control Software
  Product Comparison Charts
  
  Gen5 Software Version Comparison
  
  BioStack Version Comparison
- Accessories
  Search our Accessory database for Accessories compatible with your instrument. Search by Keyword, Part #, Product or Accessory Type.
- Technologies
  Technologies
  
  Detection Modes
  Variable Bandwidth Monochromators
  BioTek Unique Technologies
  
  4-Zone Incubation and Condensation Control
  AMX Technology
  Augmented Microscopy
  Dual-Action Manifold
  Hybrid Technology
  Laser Autofocus
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  RAD Technology
  Ultrasonic Advantage
  Verify Technology
- Quality & Compliance
  BioTek is committed to maintaining the high quality of our products and services. All of our products are designed and manufactured in the USA at our Headquarters in Winooski, Vermont. Our continual improvement process includes soliciting customer input on quality and product features, and then designing, validating, manufacturing, and testing products to ensure performance and reliability.
- Customer Spotlights
  We are dedicated to developing and supporting instrumentation that enables a broad range of applications for scientists around the world. We can tell you about how BioTek instrumentation can benefit your research, but we’d rather you hear it directly from our customers! Browse the Customer Spotlights below to see how BioTek is helping to make their research possible.
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Applications
- Imaging & Microscopy
  Imaging & Microscopy
  
  3D Cell Culture
  Apoptosis
  Cell Counting
  Cell Counting: Label-Free
  Cell Migration/Invasion
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  Confluence
  Fast Kinetics
  Genotoxicity
  Histology
  Immunofluorescence
  Live Cell Imaging
  Microbiology
  Phenotypic Assays
  Stem Cell Differentiation
  Transfection Efficiency
  Whole Organism Imaging
- Detection & Liquid Handling
  Detection & Liquid Handling
  
  Biomarker Assays
  Cell-based Assays
  Cellular and Microbial Growth
  ELISA and Related Immunoassays
  Nucleic Acid Quantification
  Total Protein Quantification
Resources
- Application Notes
  
  BioTek’s application notes present the latest-breaking scientific content covering the vast range of applications across our entire product line. Browse applications by topic, detection and product or use the simple keyword search to find the application notes that will facilitate your research.
- Application Bulletins
  
  BioTek’s application bulletins provide brief, concise descriptions of timely applications enabled with BioTek instrumentation.
- Application Guides
  
  Many applications are straightforward and need no explanation, but best practices and tips & tricks are useful for many complex or esoteric workflows. BioTek’s application guides offer detailed information on a variety of topics.
- Scientific Publications
  Search or browse our database to find scientific articles submitted by BioTek’s applications scientists and published in leading journals.
- Scientific Posters
  BioTek’s application team has developed more than 170 scientific posters on their latest research highlighting the applications enabled with our life science instrumentation. Browse or search the topics or products of interest.
- Technical Notes
  
  Our Technical Notes illustrate product-specific capabilities and common applications for BioTek microplate instrumentation, and their implementation in common experimental design.
- Visual Abstracts
  BioTek’s Visual Abstracts are brief animated presentations describing the workflow of a single specific imaging or multi-mode detection application.
- Webinars
  Our webinar archives are available for on-demand viewing - search to find a topic, application or product of interest. You can also register to be invited to future webinars here.
- White Papers
  Browse BioTek’s white papers for timely information on such important topics as Reactive Oxygen Species and 3D Cell culture.
- Citations
  
  Search the more than 2,000 scientific citations for BioTek’s products within our database to learn more about the applications for our life science instrumentation as they’re used around the world.
- Videos
  Here you will find a collection of videos found throughout our site. These videos can also be found on BioTek's YouTube channel.
- Upcoming Webinars
  Through our Webinar presentations, BioTek strives to share information and experiences about timely and important microplate-based applications. Sign up today and check back for future topics that may be of interest to you.
Service & Support
- Sales & Support Offices
  BioTek's highly trained sales and service professionals are experts in life science instrumentation. They will guide you through your decision process and help you select the proper equipment for your application, assist with installation in your lab, and train your staff on the use of the instrumentation.
- Field Application Scientists
  BioTek Field Applications Scientists (FAS) and Product Specialists provide unparalleled scientific support, assisting with experimental planning and assay optimization on BioTek’s instrumentation and software.
- Technical Support
  The BioTek Global Technical Support Center (GTS) is your Help Desk for all questions related to BioTek product use, maintenance, troubleshooting support and other frequently asked questions. Normal GTS hours are weekdays from 8:30 A.M. - 5:30 P.M Eastern Standard Time, excluding holidays.
- Global Service
  BioTek Instrument Service and Repair is available worldwide at several of our International Service Centers. Field Service is also available for many customers throughout the world.
- FAQ & Discussions
  Search our frequently asked questions and discussion groups for imaging & microscopy, detection, liquid handling, robotics and software.
- Customer Resource Center
  Access BioTek’s Customer Resource Center to search frequently asked questions and discussion groups for imaging & microscopy, detection, liquid handling, robotics and software. If you’re already a customer, login for full access to participate in peer-to-peer discussions, download user manuals and software, and view order or product information specific to you! To register for the first time, click Login and Not a Member to sign up and receive instant access. Having trouble? Watch this quick registration tutorial.
About Us
- News
  Advanced MultiFlo™ FX Capabilities Enhance Cell Biology Applications
  July 31, 2018 - BioTek Instruments announces enhancements to the MultiFlo™ FX Multi-Mode Dispenser to facilitate cell biology workflows. MultiFlo FX has a modular design that makes it easy for users to add functionality that benefits their unique applications. Read more
  
  BioTek Granted Autofocus Patent
  July 17, 2018 - BioTek Instruments, Inc., a leader in life science instrumentation, was issued a patent by the United States Patent and Trademark Office for its “User-Trained Autofocus” feature in their Gen5™ Microplate Reader and Imager Software, integrated with their advanced cell imaging systems. This autofocus method allows users to overcome imaging challenges arising from debris or dead cells, thick biology, overexposure and fluorescent dye bleaching, and works by capturing a user-defined reference scan and applying it to automatically determine comparable focal locations in subsequent images. Read more
  
  New Synergy™ LX: An Economical and Reliable Multi-Mode Microplate Reader
  May 31, 2018 - BioTek introduces the affordable, user-friendly Synergy™ LX Multi-Mode Microplate Reader to automate the most common microplate-based assays. A high quality, unique dual-optics design enables absorbance, fluorescence and luminescence measurements without compromising performance or budget. Read more
  MORE NEWS
- Events
  Korean Society for Stem Cell Research (KSSCR)
  
  August 16 - 17, 2018
  
  BioTek instrumentation will be on display by BioTek South Korea.
  
  South Korea
  
  The Korean Society for Brain & Neural Science
  
  August 30 - 31, 2018
  
  Grand Hilton
  BioTek instrumentation will be on display by BioTek South Korea.
  
  Seoul
  South Korea
  
  MipTec 2018
  
  September 12 - 14, 2018
  
  Booth #D36
  
  Congress Center Basel
  BioTek instrumentation will be on display by BioTek Switzerland.
  
  Basel
  Switzerland
  
  MORE events
- Awards
  See some of the many awards that BioTek and our products have received over the years.
- History
  BioTek is a family-run organization with origins dating back to 1968. This year we celebrate 50 years of Passion & Innovation. Click to view a historical timeline of BioTek's milestones since entering the life science market.
- Partners
  As a prospective partner, BioTek can help you achieve your sales and market penetration by providing a unique blend of products, service, support, training, co-marketing and quality assurance designed to meet your customers’ requirements while you remain focused on your core business.
- TekTalk Newsletter
  Review past issues of TekTalk, BioTek's complimentary quarterly e-newsletter. If you are not currently subscribed, you may sign up now to begin receiving the latest life science instrumentation news.
- Blog
  Visit our blog, Scientifically Speaking, to read what our scientists and instrument experts have to share.
- Careers
  At BioTek we feel passionately and genuinely that our employees are our greatest asset. We continue to build our already impressive team having doubled our global workforce in the last five years. With our headquarters in the beautiful Green Mountains of Vermont, USA, we also have regional offices around the world.
  
  If you're interested in becoming part of our amazing team, check out our list of job openings today!
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Home Products Accessories

product design

Spare Phase Contrast Annulus for 10x / 20x Objective

Part Number: 1320521S
Price: $317 (Accessory pricing is U.S. list. Local pricing may vary.)

For use with: Cytation 5, Lionheart FX

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