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Old 28-06-2020, 11:59 AM
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that_guy (Tony)
Local Korean Millennial

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Join Date: Dec 2009
Location: Charleville
Posts: 2,063
Hi Ken, I get an extremely flat field without the reducer. Celestron advertises that the back spacing does not change with the reducer (hence the high price) but research shows that many people found that they had to adjust the spacing for their own separate gear.
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