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Some telescope owners find the factory-fitted primary mirror springs are a little too weak to maintain precise collimation in some circumstances.
These Bobs Knobs stainless steel replacement springs are stronger, so provide more support.
NOTE: We recommend your telescope's mirror locking screws remain in place for additional control.
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First Light Optics LtdUnit 7 Budlake UnitsBudlake RoadMarsh Barton Trading EstateExeter, DevonEX2 8PY
Company No. 5892293VAT No. 907 2895 01
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