Bresser Cobra 10x50
The Cobra 10x50 is clearly larger than the smaller versions of the Cobra series like the Bresser Cobra 8x32 and 10x32. A big advantage is the exit pupil of 5mm (calculated by dividing the lens diameter by the magnification). The larger the exit pupil (up to a maximum of about 7 mm) the more you see, thus the wider the field of view is and the brighter the images
Dioptre adjustment: focus specifically on your eyes
With the dioptre adjustment (you can rotate the right eyepiece) you can completely eliminate the difference in sharpness which each person has between the right and left eye. This allows the binoculars to be fitted to your individual eyesight.
Suitable for spectacle wearers
The eyepieces can be twisted up so that the binoculars come closer to the eye; this is a must for those wearing glasses because normally they would see less (as the spectacles are between the eye and binoculars).
The Bresser Cobra 10x50 includes:


John-Paul, Birmingham | Monday September 26 2011 at 03:00 PM | Usefulness: 15 out of 17 | a few weeks in possession
The Bresser Cobra 10x50 is simply an amazing viewer I think anyway, as the magnification offered is tremendously high and the aperture of these binoculars is very big as well.
Thus, these binoculars serve my purposes really well. Mostly, I use them for astromical observations of the moon, birding and plane spotting.
I have just mentioned this.
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| General | ||
|---|---|---|
| Type | porro binoculars | |
| Brand | Bresser | |
| Series | Cobra | |
| Guarantee | 2 years | |
| Colour |
| |
| Weight | 735 gram | |
| Waterproof | ![]() | |
| Dimensions | 2,4409×6,6929×7,874″ | |
| Suitable for eyeglass wearers | ![]() | |
| Optics | ||
| Lens diameter | 50 mm | |
| Magnification | 10× | |
| Exit pupil | 5 mm | |
| Minimum focus distance | 5 m | |
| Twilight factor | 22,4 | |
| Light intensity | 25 | |
| Field of view at 1000 metres | 114 m | |
| Lens coating | Multi-coated (MC) | |
| Glass material | BK-7 | |
| Dioptric adjustment | ![]() | |