DAYSTAR QUANTUM CALCIUM II-K 2Å PE SHARPSTAR13 Please contact us first to

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the CDK14 is the capable of capturing the most stunning astrophotographs possible

You could become BLIND if you fail to observe the warning

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DAYSTAR QUANTUM CALCIUM II-K 2Å PE SHARPSTAR13 Please contact us first toDayStar's Quantum range of solar filters are designed for professional and serious amateur applications and offer absolute precision control over wavelength transmission. The PE grade series is designed for professional research studies and applications in which precision homogeneity and on band transmittance values across the substrate surface are required. These filters require additional quality control steps and additional fabrication and testing