Beloptik 85mm TriBand ERF

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marktownley
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Beloptik 85mm TriBand ERF

Post by marktownley »

These are becoming increasingly rarer now and don't come up for sale very often. 85mm in diameter, mounted in a home made cell approximately 123mm in diameter to give 80mm free aperture. Could be removed from cell quite easily, just unscrews. Passes Ha, continuum, CaK and CaH. Few skiffs on the faces, but nothing that affects performance or safety.

More information see below:

https://beloptik.de/en/erf-energy-rejection-filter/

£250 p&p included within UK, postage at buyers cost outside UK. Payment via paypal 'friends and family' or buyer pays fees.

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Re: Beloptik 85mm TriBand ERF

Post by marktownley »

Pending sale...


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Re: Beloptik 85mm TriBand ERF

Post by marktownley »

Sold


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