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Anyone know what this is?
Included with my recent dob purchase was what the previous owner described as a 100mm finder.
The objective show it as being made by Leitz Wetzler Germany and also says EPIS 1:4 / 400mm. He described it as a refractor when I spoke to him in person and he had fitted a brass extension to enable EPs or a diagonal to be fitted. Interestingly it focuses by turning the objective.
Any ideas?
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