8x42/10x42/10x50/12x50/12x56/15x56 APO Binoculars

I bought a pair of 10x42 APO. And yes : these optics are really apochromatics, with their double-ED elements. The view is just amazing : ultra-sharp from edge to edge, incredibily bright and crisp, the (huge) whole of the field is completly flat. The colors are vivid but very natural : there is no noticeable tint. No CA seen (due to their double-ED elements).
The field of view is very enormous : 7,8° (for 10x42 binoculars !!!), and, when observing trough the eyepieces, the apparent fiels of view (AFOV) is also enormous : almost 72° , giving you a very immersive impression.
They also provide a "3D" impression, like the best Porro prisms binoculars.
Their contrast is also magnificient, and the glare is very well controled (like the Leica Noctivid)
They can compeat US$ 3.000 binoculars (yes : I'm speaking about the Swarovski NL Pure, and the Zeiss Victory SF), truly (I owned a pair of Swarovski NL Pure 10x42 : I can not see any difference between the two).
These binoculars are a masterpiece, above all due to the fact you'll have to pay 4 or 5 times their price to get such fantastic optics.

I ordered the 10*42. Very clean product, everything is smooth, operating and cleaN. The packaging felt very secure. It took 13 days between the order and the delivery in France.
The optics are great, great value for money.

The optics of the 10x50 are sensationally good. The mechanics are also good. However, there is still room for improvement.
I would give the optics 6 stars and the mechanics 4.5.

I own Kowa Genesis 10.5x44 and wanted a replacement for my Kowa BD II 8x42 with better optical quality. I am more than satisfied with Banner Cloud 8x42 APO. Similarly to Genesis it has perfect central field quality (no visible CA, great sharpness) but much larger apparent and real field of view, with even better edge sharpness.

I also looked through 10x42 APO and several "alphas" like SF 10x42, EL 10x50 and they are really comperable. Bonner Clouds have an advantage of contrast.

The are only minor drawbacks. The eye-cups could be smaller (Sky Rover has just announced a smaller diameter replacement). I would prefer slightly more textured and softer armour. Night views against strong light sorces produce moderate spikes.

Pros: Bright, sharp, clear optics without CA. Wow, when you look inside first. Amazing!
Cons: you often need to make slight diopter adjustments when switching between near and far focus. This is confusing for a birdwatcher. Slight rainbow effect when looking at the moon. You need to change the viewing angle, then it will disappear.

Unfortunately, only 3 stars due to the diopter error