Bushnell StealthView 5x42 Night Vision Monocular

My general review is fair, the actual night vision is great in function and I have already enjoyed using the device constantly. The image resolution is good, distance viewing good, but mechanically this device is clunky at best. I work as a international bird guide and lecturer, so when dealing with clients I expect not only good image, but good and smooth functionality. I need a product that I can hand to someone unfamiliar with, in this case night vision, and is easy to use....this is not that.
The primary problem is the extremely poor diopter design. The diopter has no click-stop function, and the slightest brush with my finger moves the diopter significantly enough to require adjustment, CONSTANTLY, in the dark...this really stinks. Handing the device off to other folks is even more difficult. The actual process of use involves constant readjustment of not only the diopter but the focus as well. This makes for a very poor combination, awkward mechanical function, and constant readjustment. This really ruins the product for me and even on sale I would not buy this device again.bas a user and especially a guide I require seamless mechanical functionality, this is far from it.