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Old 18-01-2013, 10:38 PM
knightrider
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knightrider is offline
 
Join Date: Jan 2013
Posts: 136
Yes I had a read of astrobaby's tutorial also prior. It's a very good guide.

I tried to align the secondary first with the cheshire, then the primary with the laser but that didn't work at all. After I checked it with the cheshire again it showed the spot no where near where it should've been.

I did do a cheshire collimation lastnight and did some viewing and it turned out quite fine, before i even touched the focuser this morning.

The thing that bugged me was that theoretically both laser and cheshire should return similar results. and although the cheshire collimation always seemed to look good, the laser would tell me it was drastically out, even after the laser itself was collimated.

I have better peace of mind now knowing what it was and I was able to fix it so both cheshire and laser agree.

I see the value in cheshire collimation. Laser can just be for a little convenience, providing everything lines up on the OTA.
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