Lunt - 40mm Energy Rejection Filter

Be the first to review this product

Review and collect 40 points.

Availability: This Item Will Be Available in Approximately 1 Month

With this product, you earn 99 loyalty point(s). Find more about this!

Bread Checkout Btn
High quality diffraction limited IR Cut Energy-Rejection-Filters for h-alpha solar filters.Unmounted filters only.
Manufactured by:
Lunt Solar Systems

Product Description


LUNT SOLAR SYSTEMS  Energy Rejection Filter - 40mm

Energy Rejection Filters (ERF's) reduce the heat load on your filter assembly by absorbing or reflecting ultra-violet and/or infra-red light and transmitting light in the desired visual spectrum, passing the light through in the desired visual spectrum. 

High quality diffraction limited IR Cut Energy-Rejection-Filter with 40mm aperture for h-alpha solar filters.

All LUNT ERF filters are unmounted -  filters only.

• Material: RG630 
• Diameter: 43mm
• Aperture: 40mm
• Thickness: 3.5mm
• Side 1: Dielectric IR Blocking Coating
• Side 2: Broadband AR coating
• Wavefront: <1/4 wave T




Name Lunt - 40mm Energy Rejection Filter
Manufacturer Lunt Solar Systems
Model LS40ERF


How do you rate this product? *


FAQ / Downloads