技术细节
| 最近聚焦距离 |
3 m |
| Eye relief |
16 mm |
| 镜头镀膜 |
Fully Multi Coated (FMC) |
| 视野（1000米距离） |
96 m |
| 瞳距可调 |
Y |
| 微光系数 |
25.92 |
| 棱镜类型 |
Roof |
| 物镜直径 |
56 mm |
| 放大率 |
12 x |
| 防水深度可达 |
1.5 m |
| 瞳距（最大值） |
74 mm |
| 瞳距（最小值） |
56 mm |
| 出射瞳径 |
4.7 mm |
Savannah 12x56 Binocular
The new Barr & Stroud Savannah range of binoculars are a blend of superb optical quality, advanced mechanical design and rugged refinement that has produced an elegant range of binoculars that take the Barr & Stroud brand to yet another new level of performance and sophistication.
The Barr & Stroud Savannah 12x56 is the in the range for those with a very steady hand and a need for greatest magnification that can be practically hand held. If that is top of your priority list then the 12x56 is the sort of powerful binocular you are looking for. Dont expect it to provide super bright images in very low light, but do expect it to bring you close up to the action where the power of the 12x magnification excels, and still give you sharp contrast rich images under normal daylight conditions that its 56mm aperture objective lenses will provide.
The Savannah range from Barr & Stroud feature rugged construction combined with brilliant optics and high resolution wide field eyepieces to produces stunning images. They are waterproof to a depth 1.5m of water for three minutes, plenty of time to retrieve them if you have dropped them in a stream or puddle. This requires a high degree of mechanical quality in the construction of the binocular which is evident as soon as you pick the binocular up or use the super smooth focus control wheel. A further refinement of the Savannah range is the position of the individual eyepiece control just behind the main focus adjustment wheel, instead of the traditional adjustment ring placed in front of the right hand eyepiece. This makes balancing the binocular for the individual users eyesight a simple operation that does not require the user to take the binoculars away from their eyes during the operation
We dont expect that you will make a habit of dropping the binoculars into deep water but we do expect that you will want to use them in any weather the planet can throw at you, so you can feel assured that the Barr & Stroud Savannah can take it, again and again. This ability is further enhanced by the binoculars rubber armoured body which protects it from shocks and knocks. The binoculars are filled with nitrogen gas which keeps water out and also stops the optics suffering from internal fogging in adverse weather conditions, this binocular is truly weatherproof.
Fully Multi Coated optics are standard features of the Barr & Stroud Savannah range as are BaK-4 phase coated prisms. This degree of sophistication ensures that as much light as possible is transmitted through the optics which results in super bright contrast rich images of high colour fidelity for the user even in low light conditions where less expensive optics and coatings result in a dramatic loss of performance.
For the comfort of the user the binoculars are supplied with metal twist up eyecups that are rubber coated which make them equally practical for people to use with or without spectacles. The rapid focus mechanism takes the user from close focus to infinity in less than one turn of the focus control knob, which ensures that you can follow the action however fast it is happening.
