PerfectPoms

I suspect the cost to repair it would be a significant enough percentage of the new purchase price that repairing it may not be particularly cost effective. I'd still start by trying with the ...

MAYBE the retailer MIGHT give you some help if you explain you left it unused on the shelf until recently, and explain how bad it is.  Maybe they will exchange it.  Maybe with a restocking fee.

Nikon Rumors has linked to a D6 review: https://www.andychuaphotography.com/nikon-d6-review/

Yes, there are probably bad TC's out there.  Can you get another one to compare? The bad TC might have been dropped and one or more lens elements has shifted, or it may have been 'decentered' or ...

Taking off just the front lens element should be one of the slightly less complicated repairs that we can try.  You may need to pick up some really, REALLY tiny screwdriver heads. You might be able ...

Try Amazon, ebay and B&H You might even try repairing the existing foot yourself.  Buy some leather.  Glue it on.

Yup.  There are certainly a LOT of people who can't afford the 500 pf - or have other priorities to spend their money on ;-)  ... whereas those cheap Canon lenses may find many buyers and a brand ...

Maybe.  It's something you may want to read up on.  Potentially, you might be able to get more accurate focus at different distances and focal lengths, because Nikon only sets 1 AF Fine Tune ...

If you don't use them they'll get rusty ...

You're missing out if you don't try this link: https://www.apotelyt.com/shutter-count/nikon-d5-actuations And a pleasant bonus is a WEALTH of EXIF info! PS:  I'm sorry to tell you that your 200 f2 ...

Yes, D750 AF is better than D810. D4s AF is sort of a sideways move from the D750. In some ways the D4s is faster. They are probably different, yet close. But I recommend throwing out AF-S. Even ...

The D5 has greater dynamic range than the D750 starting around 2200 ISO - BUT - the D750 has a full TWO STOPS better dynamic range than the D5 at low ISO. Pick out the cameras you want to compare ...

Wow. The EXIF info listed when you upload a photo is STUNNING! I was disappointed by my old standby famous EXIF reader that I used to use, so I googlied a bit and I thought this reader had a TON of ...

I noticed with some of my first days using the 500 pf lens that it is LIGHT lenses that I notice bouncing around a lot.  I think this might be why I didn't get good results a few years ago with ...

It probably takes years of learning to see past his statements about EVERY lens he reviews being the best lens ever made, (even when it is the cheapest lens Nikon has ever made), but I find his ...

I find myself going back to this page very often: https://www.kenrockwell.com/nikon/300mm-f28-history.htm I find those charts very useful.

Authoritative post.  Thank you Bill. I'd thought less about the MFD.  Limiting for sure. And I hadn't thought much about the 800mm lens for distant large animals that you can't get close to.  I'm ...

I imagine looking at actual photos may be different than the actual stats, but https://www.photonstophotos.net/Charts/PDR.htm says the D5 jumps SLIGHTLY above the D850 at 1273 ISO, and, ...

The day the woman stepped on my my 200 f2 lens hood the camera was close to my feet sitting like your photo above. (lens hood on the camera) I suppose I'm lucky I didn't have one of my 2 pound ...

The 200 f2 is SO heavy for its size.  I used to have fun handing it to unsuspecting people who walked by while I was taking photos of my puppies, and I loved how they were shocked at the weight of ...