How to tighten the collar on the 70-200mm FL ED?

Started 1 month ago | Questions thread
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jhelphenstine
jhelphenstine New Member • Posts: 20
How to tighten the collar on the 70-200mm FL ED?

I loosened the knob to rotate the lens. I tightened the knob...but the lens still rotates freely. I don't see any screws to tighten -- is this a case of "keep tightening it" or is there something more afoot?

 jhelphenstine's gear list:jhelphenstine's gear list
Nikon D3400 Nikon D850 Nikon AF-S Nikkor 50mm F1.8G Nikon AF-S DX Nikkor 16-80mm F2.8-4E ED VR Nikon 24-70mm F2.8E ED VR +5 more
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