Opticron 10×25 Aspheric Binocular Review
This Opticron10×25 Aspheric Binocular is an exemplary model of the brand Opticron that has spawned an utterly indigenous business in optical products. With an Opticron10×25 Aspheric Compact Binocular you are sure to enjoy bird watching and holidaying without the feel of its weight, thanks to its light weight body. The Aspheric lens in Opticron10×25 Aspheric spectacle Binocular gives an advantage of high clarity images.
The water proof feature of this product gives it the complete protection from a sudden down pour or mist. The minimum focusing distance which is 2 m of this binocular enables you to watch even small flies and birds with good clarity.
Opticron10×25 Aspheric binoculars have a roof prism design which makes this model narrower and more compact than the models with porro prism.
Magnification is the ratio of focal length of the eyepiece divided into the focal length of the objective lens. The 10x magnification of the Opticron10×25 Binoculars produces an image as if it is 10 times closer to the object.
The long Eye Relief of Opticron 10×25 Aspheric LE WP Binocular which is 16mm gives more comfort to spectacle wearers.
Objective diameter is the diameter of the objective lens which determines the amount of light that can be gathered to form an image. This model has an objective diameter of 25mm.
Exit Pupil is the objective diameter divided by the magnifying power. The exit pupil diameter of 2.5mm of this product matches the contracted pupil of human eye which is sufficient for day time use whereas light gathered by a large exit pupil is wasted. The Relative brightness of 6.25mm helps a clear viewing at dusk.
The viewing field determines the distance in width that can be seen at 1000 yards or 1000 meters. The Opticron10×25 Aspheric Compact Binoculars have a field of view of 87 meters and an angular view of 5 degrees which helps to view a wider area.
The Super multi coating and the Phase correction coating on the surface of the roof prism maintains the phase shift of the light pathways, by which it reduces the degradation of the image.
External:
- Opticron10×25 Aspheric Binoculars is 292 gm in weight.
- The length of this model is 111 mm and the width is 104 mm.
- The body is rubber-armored.
- This model comes with a soft case, lens caps, lanyard straps and user guide.
Opticron10×25 Aspheric Compact Roof Prism Binocular comes with a guarantee of 10 years.
Opticron 10×25 Aspheric - Specification Table
| Brand | Opticron |
| Model Name | 10×25 Aspheric Binocular |
| Prism Type | Roof Prism |
| Magnification | 10 x |
| Diameter of Objective Lens | 25 mm |
| Exit Pupil | 2.5 mm |
| Eye Relief | 16 mm |
| Field of view at 1000 (meters or yards) | 87 m |
| Relative Brightness | 6.25 mm |
| Optical Coating | Super multi coating, PC Phase corrected coating |
| Dimension (H x W ) | 111 x 104 mm |
| Angle of view | 5 degrees |
| Weight | 292 gm |
| Applications | General purpose |
| Box Contents | Case, Strap, users guide, lens caps |
| Guarantee | 10 Years |
January 31st, 2009 at 12:37 pm
I am a sports man. This is an excellent Binocular as its configuration is too good. With its multi coat, I can have better bright images. The magnification with lens also great to use. Not only for sports, when I travel to different places I carry this too. People who like sight seeing as bird watching, or sportsman like me should have this binocular one like this.