no diopter close range at 20 - 30 m, good imaging performance

If you write something about this glass, so keep in mind the price. And considering the price you get a solid processed glass with good optical performance. The package includes the glass, a bag, a fairly thin belt and a cleaning cloth. The eyecups can be adjusted by folding over 3 stages. The eyepoint fit even when wearing glasses.

Of course, one has to accept restrictions at this price:

High-quality workmanship and materials not found. Much plastic, gaps so-so, in some way seals is not hope. Prisms and lenses are, as far as I was able to examine the not adjustable. Either the glass is not clean or just mounted.
Quite big drawback: the lack of diopter adjustment. For those who rely on them, is the glass have no joy, because the picture with two tubes together not sharp.

The binoculars will be shown as fixed focus. That it comes with a fixed setting, therefore, the depth of field within a range x - 'Infinity' sets. Where x is in the range of 20 - can be found 30 meters. Probably less for younger people because they can better akkomodieren usually. For many observations on natural However, the glass separates from it.

Again, given the price had at least my copy a good picture quality. Ie no extreme fringes, contrasting amazingly well, the sharpness center to 2/3 border ok. The tubes were matched clean.

So if a low-priced glass with relatively good imaging performance for seeks observations beyond 20 meters - similar example at the races - Who is not dependent on the diopter can try here a good specimen to catch.