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thanks for your first impressions, i look forward to more details. i am not sure how big the focussing issues were, but is it possible this is due to changes in temperature. I am not sure how much this affects refractors but it may be a component of the issue. when you get a chance i would love to see a colour image to see how well the CA is corrected. congratulations again on your new scope, you have to be very happy with the results.
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