Originally designed for birders who needed to see the details of the long-range animals thus a high power also with good brightness, a reasonable size and decent weight! for better visual comfort and prevent wobble with such magnification you must first set up the instrument that provided is correct as ... flash bracket, as a naturalist I picture tripods much more 'beefy "to withstand vibration (not too much!) this kind of more for the optical track the subject it is better to have a real ball (photo or video 3 axes 2 axes) rather than a swivel clip with one and Single lever as here, conversely, tripod mount is light, small and therefore more "portable" than Gitzo after 7Kg of everyone to make their choice (TREP. also used for the photo, I set bezel or with telephoto quick couplers, immediately passing from one to another!) the optical quality is sufficient if there is a little light and 20x when the brightness down or if you turn up the magnification ("zooming" from 40x) picture becomes bland lacking contrast and therefore difficult to read, 60x against the light on the subject is fringed, positive: slight, short, small diameter, large depending on where one is (its discretion avoids being ripped it must unfortunately think!) minimum distance 12m. excellent compared to "real glasses" ... it is also much cheaper. Bad: low optical quality (but very adequate for amateur use and if we stick to daylight and sun in the back between 20X and 40X eyepiece fixed beyond ... (not interchangeable) much less convenient than binoculars to follow a moving subject (flying bird) a telescope binoculars complements but does not replace them! this is ideal for stable subjects (posed birds, mammals static but also architectural details, etc. ) flexible eyepiece cover is ridiculous it is not, unlike the lens cap (rigid him) "locked in" on the bezel (thus easy to lose) plus it does not fit on the eye it is supposed to protect I've lost mine! it is not possible to put a carrying strap, it is imperative to use the bag which itself is just so we can let the quick coupler mounted under the bezel! incomprehensible for a missing centimeter! so badly designed or made by a novice who know nothing, all is still an observation accessory cheap when it is used on tripod with a little common sense and found it a real and functional padded bag.
