Caring for long lens / lens fault

JimL

New member
Hello,

I’m new here so not sure if this is right place to post this.

I currently have my 200-500 nikkor f/5.6 lens away for an expensive repair. I am going to sell this once I get it back as I now have a 500 pf and only very rarely used the 200-500 at other than 500.

My question is a more general one about how the damage may have occurred so that hopefully I can avoid similar in the future.

I bought the lens new a few years ago and used on d610, 750 and 780. Sometimes with 1.4 converter. I progressively noticed a small amount of play at the mount and camera said f/0, ERR, and failing to focus. Usually if I tried to rotate the lens the issue would go away temporarily- but eventually it was happening too often.

I was told there was an electrical fault and internal damage to the diaphragm and lens mount and tube needed replacing.

I don’t ever remember dropping or bashing the lens. I often carried it at my hip on a strap when walking.

Any ideas how damage might have occurred? And tips on preventing in future? Or have I just been unlucky? Possibly issue got worse when I started using the teleconvertor- is that possible?

Many thanks in advance.
 
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