Good glass with smaller optical weaknesses

My field of application: Bird watching

Positive:
- Good haptics
- Small
- Light
- Compact
- Very contrasty and sharp
- Clear image, even when darkness
- Waterproof

Negatives:
- Chromatic aberrations in the peripheral region when viewed against the sky (blue Außensäume that restrict the field of vision)
- Clearly perceptible chromatic aberration (red / green) with high contrast edges
- Lensflares observing in backlit situations
- Magenta cast in evening light situations
- Back cover loose when wearing like, then fall not from because they are attached with a rubber ring on the binoculars, but the binoculars no longer protect then.

After I've hardly read criticisms about the optical power of these binoculars from Amazon, I thought at first to have bought a "mon copy" and exchanged the binoculars at Amazon to offer. In fact, the second was slightly better, with regard to the chromatic aberrations, but these are also the second copy exists, albeit a bit more discreet.

Due to the low price (139, - to the time of my purchase) I forgive 4 stars because the price / performance ratio is very good. The optical quality I would rate despite perfect sharpness but with three and a half stars, because chromatic aberrations while observing birds that move in front of the open sky or sitting in trees against the sky, are disturbing.