Reserve your coating slot by November and enjoy the benefits of our flexible design options, professional service, and guaranteed 4 week lead times. We combine deep technical expertise with creative engineering teams who understand how to bring product ideas to market successfully for leading OEM customers worldwide.
4 Week Lead Times Guaranteed for new coating design orders placed in November or your next custom coating order is 50% off* (terms and conditions apply).
Why should you choose Semrock Optical Filters for your new instrument concept?
- Speed and Support: With a large and experienced Applications and Filter Design team, we are available to quickly get to the solution for your specific need.
- Design for Scale: With thoughtful design approaches and highly repeatable manufacturing controls you can be sure your concepts can scale to mass production
- Unmatched Performance: Semrock-brand filters use cutting-edge coating technology that will make every photon count in your system.
- Best-in-Class SearchLight Modeling: Combine custom and catalog filter designs to customize where you need and economize where you don’t.
Secure your optical filter coating time on your calendar today!

*Terms & Conditions:
- 4 weeks from date of order acknowledgement to shipment date excluding holidays
- Coating and final part sizes are within our standard capabilities using on-hand materials
- Excludes non-standard glass and housings and coating requiring special assembly
- Orders must be received between October 23rd and December 1st
- 2nd order to claim 50% discount (if applicable) must be placed within 6 months
- Other terms apply