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Old 31-10-2012, 10:01 PM
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Satchmo (Mark)
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Satchmo is offline
Join Date: Dec 2005
Location: Sydney
Posts: 1,858
I'm a little mystified as to why it should be particularly complicated to collimate a Takahashi?

Assuming that the lenses were well centered and edged in manufacture ( the elements therefore having no `wedge') , and since passed a factory collimation check, then simple tilt of the whole lens assemble should be all thats required to return the scope to perfect collimation , and that can be adjusted looking at a star with a high power eyepiece whist adjusting the tilt. I thought that was one of the benefits of a refractor - freedom from any particularl complexity in collimation ?
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