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Show us your equipment!
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15-10-2007, 11:07 AM
PhilW
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Join Date: Mar 2007
Location: Melbourne
Posts: 283
Binoscope
The mirrors are both GSO mirrors, & the focal lengths are almost identical. They need to be matched within 2% or thereabouts, otherwise the images will be different sizes & won't merge successfully.
Phil
PhilW
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