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Mike they are both Cheshires.
The Cheshire is a dual purpose tool. As well as adjusting the primary collimation it doubles as a sight tube for aligning the secondary under the focuser. Its really the only tool you need.
As i imagine you are buying the adapters for the moonlight focuser from dba , I would get the cheshire from them as well being cheaper.
I think I paid about $75 for mine too.
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