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Lunt ERF 50 mm energy-rejection-filter View larger

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Lunt ERF 50 mm energy-rejection-filter

Lunt ERF 50 mm energy-rejection-filter

Lunt ERF 50 mm energy-rejection-filter. Diameter 53 mm, aperture 50 mm, thickness 3.5 mm.

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Lunt ERF 50 mm energy-rejection-filter

Lunt

LT-0558102

New product

Lunt ERF 50 mm energy-rejection-filter. Diameter 53 mm, aperture 50 mm, thickness 3.5 mm.

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155,00 €

Ordered upon request

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LUNT LS50ERF 50mm Energy-Rejection-Filter

High quality diffraction limited IR Cut Energy-Rejection-Filter with 50mm aperture.

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.

Technical data:
• Material: RG630
• Diameter: 53mm
• Aperture: 50mm
• Thickness: 3.5mm
• Side 1: Dielectric IR Blocking Coating
• Side 2: Broadband AR coating
• Wavefront: <1/4 wave T

Delivered by order:
• 1 x LUNT 50mm ERF

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