RefIex-Nikkor 1000mm f11 Mirror lens (partial) Teardown

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Mark the point!

READ THIS FIRST! In the following step, rotate slowly, and apply gentle force pulling front and rear apart, and mark the position of separate.
Rotate the rear half of the lens, towards close-up direction (CW as looking downwards), pass 8m/25 feet mark and continue, while applying gentle force pulling rear part up, until they separate, mark the point.
When assemble them back, attach from this angle/point.

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