Photography

That is one incredible lens.

I used a P510 for a decade or more, and still do. 24-1000mm effective FL, it did everything I wanted, (great close-ups) so I completely bypassed the DSLR era.

I just jumped into mirrorless (Z). Being able to use all the old Nikon F lenses, non-AI is awesome.

Newer lenses will focus past infinity, accounting for some slop in the mechanisms. The older ones wouldn't, so taking star (and comet) photos called for the old lenses after some frustration. Try focusing on stars in the dark, will you. Best results were with the old 180/2.8.

One year, I got hummingbirds feeding in the wild with it, and being in the sun, the flat panel was impossible. And the viewfinder on that old model is completely useless. Since I am nearsighted, I'd have to take my glasses off to see the display. Talk about hard ti sight things in!!! Amazingly enough, though I could barely see the hummingbirds in all the glare, that little camera's autofocus worked very well.

So, I got a P1000, to a large extent for the bright infinity-focus viewfinder. Other reasons, as well.
Got some of my best bird pix in the 800-1000mm range. Includes the P510.

Looking forward to your 800mm photos.