Image taken with the Omega Optical 394nm filter as a blocking filter photo

Andy Dodson | all galleries >> Solar Photography >> Evoloution of my Ca K filter > Image taken with the Omega Optical 394nm filter as a blocking filter

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Image taken with the Omega Optical 394nm filter as a blocking filter

next the Omega Optical filter as a blocking filter. As you can see, no vignetting, but not as much contrast as the PST BF, and a suspicious alignment running about '1 o clock - 7 o clock' in this image

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If you want a copy of this photo please quote the IMG# (if possible) and e-mail andydods2001@gmail.com

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