72mm Solar Filter ND1000000,20-Stop Solid Neutral Density Filter Celestial Event Photography Filter with 28 Multi-Layer Coatings for DSLR Camera Nano-Xcel Series

SKU: KF01.2581V1

Q
I've read that ND filters are not enough as they do not filter IR/UV light? Depending on the answer, can I stack this with the current UV filter I have on it as well? #2- for the purpose of the eclipse do you recommend the 16X or 20x?
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