Zeiss DesignSelection B T* 522051 Monocular

Pros: Perfect, distortion-free image. Wide apparent field. Best small optical device I've ever seen.
Cons: There are no negative things I can say about this.

I try to take this with me everywhere, which is easy. The image is large, with a wide apparent field of view. It matches the optical quality of my Leitz Trinovid binoculars, or in other words, it produces images too good for me to find fault with. I love this little thing and if you get one, you will too. The only thing I hated, ever, about this was when it was stolen from my unlocked baggage when I flew on an airliner recently. That wasn't it's fault, and I miss it so much I just ordered another one.

I had the 6x18. This time I'm trying the 10x25.

Zeiss also makes the very best eyeglass lenses. I'm a big fan of the whole company.