For experienced self builders of solar telescopes, Lunt Solar Systems offer unmounted Energy Rejection Filter (ERF) of 40mm up to 100mm aperture as accessory. These ERF are suitable for use together with additional H-alpha Etalon filters.

Specifications
Material body RG630
Diameter, mm 105
Aperture, mm 100
Thickness, mm 3.5
Side 1 dielectric IR blocking coating
Side 2 broadband AR coating
Wavefront <1/4 wave T
Brand LUNT Solar Systems
Warranty, years 2

Returns Policy

We have a 14-day return policy. If you are not satisfied with your purchase, please return it in its original packaging and be sure to put the original product packaging inside the shipping box to avoid any damage..

All items must be in their original condition and unused. The value of your purchase will be refunded. .

Shipping charges will not be refunded.

If the return is due to a defective product, you may be compensated for the return shipping.

Please contact us for more details if you need to make a return..

SHIPPING POLICY

- From 0 to 2 kg - shipping cost: 12,50 euros.

- From 2.001 kg to 30 kg - shipping cost: 17,00 euros.

- From 30,001 kg - shipping cost: 30,00 euros.

In case of collection at our warehouse or resale points - the shipping is free.

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