Kowa Genesis 10 x 44: flagship Kowa: with XD lenses and C3coating
The Kowa Genesis 10 x 44 binoculars are compact binoculars with top-technology features! Despite its compact dimensions, you still have a super bright and sharp image.
Filled with nitrogen: waterproof and fully dustproof
The Kowa is completely filled with nitrogen so that the inner pressure is higher than the outside pressure. This keeps dirt, water and other contaminants out.
Prominar XD Lens: complete elimination of chromatic aberration (colour dispersion at the edges of the image field)
The Genesis uses "Prominar Fluorite glass". Fluorite glass ensures maximum light transmission, thus a clearer image. The details are even more visible and give an even sharper picture, something ordinary glass cannot give. Fluorite has as a feature that the dispersion is incredibly low, so vague colours are fully eliminated. With fluorite glass, light transmission is 99%; the following diagram makes this clear.
Kowa C3 Coating: 99% light transmission

For all Genesis models, Kowa have applied a so-called C3coating to the prisms inside the binoculars. This ensures the light transmission of the prisms increases to 99% across the entire light spectrum (400 to 700nm). This not only gives extremely bright and razor sharp images, but you also get a very natural colour reproduction. The above diagrams shows the reflection of the coating compared to a conventional aluminium coating.
Twist-up / foldable eyepieces (eyecaps)
The eyepieces of the Kowa XD44 10.5x44 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).
Minimum focusing distance: 1.7m
Because the Kowa can already focus from 1.7 m it is suitable for virtually all applications.
Reviews and opinions about the Kowa Genesis 10.5x44
There are several reviews about the Kowa Genesis 10 x 44. It is very well-received by several critics at birdforumthat is:
Technical differences between Kowa Genesis XD 10x33, 8x33, 8.5x44 and 10.5x44
Below is a short summary of the technical differences between the various Kowa Genesis XD viewers


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| General | ||
|---|---|---|
| Type | roof binoculars | |
| Brand | Kowa | |
| Series | XD44 | |
| Guarantee | 10 years | |
| Colour | green | |
| Waterproof | ![]() | |
| Dimensions | 6,4961×5,4331×2,5197″ | |
| Dimensions & Weight | ||
| Weight | 965 gram | |
| Optics | ||
| Lens diameter | 44 mm | |
| Magnification | 10,5× | |
| Eye relief | 16 mm | |
| Exit pupil | 4,19 mm | |
| Minimum focus distance | 1,7 m | |
| Twilight factor | 21,5 | |
| Light intensity | 17,6 | |
| Field of view at 1000 metres | 108 m | |
| Lens coating | Multi-coated (MC) | |
| Glass material | BaK-4 | |
| Actual field of view | 6,2° | |
| Coating prism | Phase coating (P) | |