huffy49

The articles introduction is in error. Thorium oxide was not used as a lens coating. Rather, the lens elements themselves were partially composed (up to 30%) of thorium oxide. Such lenses have...

meh

It's a "T" mount. Why wouldn't it work on your Nikon (with the appropriate adapter)? My 600mm Solid Cat will fit nearly anything modern that takes interchangeable lenses.

I've used my 60D with my C5 scope and find that using Live View on the articulated screen makes focusing very, very easy, as opposed to nearly impossible with my old 350D. That alone ought to make...