Alluxa 34mm clear aperture 7-angstrom hydrogen alpha blocking filter
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For sale is an ultra narrowband filter element required to make a 34mm clear aperture blocking filter. I bought it from Apollo Lasky in December 2025 (check ad #627467)
I planed to use it on my modified Lunt 100mm double stack. However, I sold my solar scopes (ads # 633201) and this filter has never been used in my hand. Asking for $450 shiped and PayPal fee included. Feel free to ask any questions. Thanks!
I planed to use it on my modified Lunt 100mm double stack. However, I sold my solar scopes (ads # 633201) and this filter has never been used in my hand. Asking for $450 shiped and PayPal fee included. Feel free to ask any questions. Thanks!
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