Stories & Features
Upgraded Fluorescence Imaging with Enhanced Signals and Higher Contrast
Apr 17, 2026
by
IDEX Health & Science
Semrock BrightLine® 2.0 and BrightLine Basic™ Optical Filter Sets
Two redesigned fluorescence filter set families built to improve image clarity, support higher signal-to-noise, and deliver cost-effective value across a range of fluorescence imaging applications and system requirements.
CHOOSE BRIGHTLINE 2.0 IF YOU NEED…
Higher signal-to-noise, optimal imaging performance, and standardized specs across the family.
CHOOSE BRIGHTLINE BASIC IF YOU NEED…
Dependable performance for routine imaging at an economical price point.
Talk to an Applications Expert
BrightLine Sets
Filter Sets Organized by Family and Fluorophore
Choose the filter set family that matches your performance needs and budget, then select the set that is most compatible with your fluorophore.
| BrightLine 2.0 | BrightLine Basic |
| BFP | BFP |
| FITC | FITC |
| GFP | GFP |
| Cy3 | Cy3 |
| TRITC | TRITC |
| LED-TRITC | LED-TRITC |
| Cy5 / LED-Cy5 | Cy5 |
| TxRed | TxRed |
BrightLine 2.0: Enhanced Performance for Modern Imaging
We redesigned BrightLine 2.0 filter sets to align individual filter spectral specifications and production processes with standardized family set requirements. The result is clearer and consistent imaging performance across high performance applications delivered at a standardized $895 set-level price.
Key Benefits of BrightLine 2.0
- Enhanced set performance for modern imaging: By aligning spectral specifications with modern light sources and detectors, BrightLine 2.0 filter sets are designed to support higher signal-to-noise performance while maintaining compatibility with legacy systems. These filters support applications, such as confocal microscopy, that demand precise and reliable fluorescence imaging.
- Standardized specifications across the family: Clear, consistent specifications across the BrightLine 2.0 family simplify product discovery and selection, helping you identify compatible filter sets across fluorophores and applications.
- Set-level pricing for standardized families: Our strategic redesign allows us to offer BrightLine 2.0 filter sets at a standardized $895 set-level price, expanding access to high-performance fluorescence filter sets without adding complexity to selection or pricing.
- OD blocking options to support contrast control: BrightLine 2.0 filter sets are available with OD 8 to OD 10 blocking in complementary bands, measured and verified using our proprietary KolaDeep™ Spectral Measurement System, to support imaging setups where higher signal-to-noise and contrast is required.
BrightLine Basic: A Cost-Effective Option for Fluorescence Imaging
We designed BrightLine Basic optical filter sets for cost-conscious fluorescence imaging applications by standardizing requirements and relaxing select spectral specifications compared to BrightLine 2.0. These filters are intentionally engineered for applications where the most stringent specifications are not required, allowing us to offer BrightLine Basic sets at a standardized $545 set-level price.
Key Benefits of BrightLine Basic
- Exceptional value for cost-sensitive applications: BrightLine Basic filter sets are offered at a standardized $545 set-level price, supporting fluorescence imaging applications where cost efficiency is a priority.
- Relaxed specification requirements: Spectral specifications are intentionally relaxed compared to BrightLine 2.0 to support applications where the most stringent requirements are not critical.
- Reliable performance for routine fluorescence imaging: Designed to meet essential performance needs across a wide range of routine fluorescence imaging applications.
- Clear differentiation within the BrightLine family: Standardized specifications clearly distinguish BrightLine Basic from BrightLine 2.0, helping simplify selection based on application requirements and budget.
Which Filter Set Family is Right for Your Imaging Workflow?
Key considerations for fluorescence imaging workflows:
BrightLine 2.0 Is A Fit When You Need:
Modern Imaging Performance
Supports higher signal-to-noise ratio in fluorescence imaging applications with more stringent performance requirements.
Standardized Family Specifications
Clear, consistent specifications across common fluorophores support easier evaluation and confident selection.
High Performance At A Set-Level Price
Offered at a standardized $895 set-level price point without compromising optical quality or performance.
BrightLine Basic Is A Fit When You Need:
Routine Imaging Performance
Provides essential performance for fluorescence imaging applications where the most stringent specifications are not required.
Relaxed Specification Requirements
Specifications are intentionally relaxed compared to BrightLine 2.0 to support cost-sensitive imaging needs.
Accessible Value At A Set-Level Price
Offered at a competitive $545 set-level price point to provide cost-effective value within the BrightLine family.
View BrightLine 2.0 Family Sets View BrightLine Basic Family Sets
Need help confirming fit? Talk with an applications expert.
Common Fluorescence Optical Filter Selection Challenges
Selecting optical filters often involves balancing performance requirements, affordability, and system compatibility. Instrument designs may require precise specifications to meet overall system requirements, while routine imaging often prioritizes cost efficiency and fluorophore compatibility, especially in fluorescence imaging and fluorescence microscopy. BrightLine 2.0 and BrightLine Basic filter sets are designed to address these considerations through standardized specifications, competitive pricing, simplified discovery, and compatibility across fluorescence imaging configurations.
Addressing Your Pain Points
HOW CAN I SIMPLIFY MY OPTICAL FILTER SELECTION?
Use standardized family specifications to reduce guesswork and enable consistent selection across fluorophores.
HOW DO I MATCH PERFORMANCE REQUIREMENTS TO MY BUDGET?
Select BrightLine 2.0 for higher-performance imaging needs, or BrightLine Basic for routine fluorescence imaging at a more accessible set-level price point.
HOW DO I CONFIRM COMPATIBILITY BEFORE ORDERING?
Review filter set compatibility with SearchLight™ or consult our applications experts to verify.
The Semrock Advantage
Semrock optical filters are backed by more than two decades of focused innovation in fluorescence imaging, optical filter design, and manufacturing expertise. Trusted by OEMs, scientists, and engineers, Semrock has built its reputation on delivering reliable, high-performance filters for demanding microscopy and analytical instrumentation applications.
Patented filter design methods and a dedicated IBS and magnetron coating fleet support consistent spectral performance, durability, and reliability across demanding fluorescence imaging environments. This manufacturing depth enables Semrock to deliver standardized filter set families, support volume production, and offer predictable pricing, while maintaining the optical performance customers expect.
BrightLine 2.0 and BrightLine Basic filter sets represent the latest evolution of the BrightLine platform, reflecting over 20 years of technical advancement to meet today's imaging requirements.
What You Can Verify Before You Buy
- Spectral transmission and blocking data: Access spectral plots, blocking specifications, and performance modeling tools through Semrock Optical Filter Resources and tools to evaluate filter behavior across fluorophores and configurations.
- Spectral evaluation and modeling tools: Use SearchLight, our free spectral modeling tool, to model and evaluate the performance of fluorophores, filter sets, light sources, and detectors as components within an optical system.
- Standardized family specifications and part numbering: Review specifications, detailed technical and spectral data, standardized part numbering, and defined performance tiers across common fluorophores directly on the Semrock BrightLine 2.0 filter set and Semrock BrightLine Basic filter set product pages.
- Compatibility guidance for fluorescence imaging systems: Review Fluorescence Filter Information for foundational guidance, technical notes, and white papers covering fluorescence filter applications, use cases, and system considerations relevant to fluorescence imaging.
- Direct support from applications experts: Use our Optical Filters FAQs to review commonly asked questions related to Semrock optical filters and applications.
Our Semrock applications experts are available to help answer questions and provide additional guidance.
Fluorescence Filter Set FAQs
Selecting the right fluorescence filter set often raises practical questions about performance, compatibility, and selection. The answers below address common considerations to help you better understand BrightLine 2.0 and BrightLine Basic filter sets and determine which option fits your imaging needs.
What is a fluorescence filter set?
A fluorescence filter set is a matched combination of excitation, dichroic, and emission filters designed to isolate fluorescence signals from a specific fluorophore in an imaging system.
What's the difference between BrightLine 2.0 and BrightLine Basic?
BrightLine 2.0 filter sets are designed for higher-performance imaging needs at a $895 set-level price. BrightLine Basic filter sets provide essential performance with relaxed specification requirements at a more accessible $545 price point.
How do I choose the right set for my fluorophore?
Select the filter set family that best matches your performance requirements and budget, then choose the compatible fluorophore. Review spectral data and specifications to confirm fit with your light source and detector.
Will these filter sets fit my microscope?
We offer many different cube options for popular microscope configurations for drop-in replacement. If you don't find the cube you need, contact our Semrock application experts.
How do I manage unwanted signal overlap in fluorescence imaging?
Selecting filters with appropriate band placement and blocking characteristics can help manage unwanted signal overlap. Spectral data can be used to assess performance within your specific imaging setup.
Do you provide spectral data for each set?
Yes. Spectral transmission and blocking data are available through Semrock filter resources to support product evaluation and selection.
View BrightLine 2.0 Family Sets View BrightLine Basic Family Sets
Talk to an Applications Expert