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I should say, Nathan, If I had a full 8" I'd happily use that rather than a quarter aperture. I picked up the quarter cheaply from someone who lost interest after the last Venus transit, I would never have justified the price of a full aperture glass filter.
It just seems that, if you have a quarter, then why not avoid the spider vanes. Probabaly, the improvement on the Sun of avoiding a spider vane would be miniscule. I just don't know.
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