Combining high-resolution optics with fashionable, streamlined bodies, these compact, lightweight 8x21 UCF R and 10x21 UCF R offer comfortable viewing and outstanding portability in a wide range of casual observations, both indoors and outdoors.
- The UCF R-series models combine the PENTAX-developed dual-axis eye-distance adjustment system for precise alignment of the lens barrels, high-refraction BaK4 glass prisms, multi-coated optical elements and aspherical eyepiece lens elements to deliver high-quality images, even under poor viewing conditions. Their compact, lightweight bodies are encased in a protective rubber housing for extra protection against dust and shock. Other user-friendly features include a short minimum focusing distance of approx. 2.8 meters/9.2 feet, extendible eyepiece rings and a diopter adjuster with a click-stop center pointer
UCF R Features
UCF R Specifications
| 8x21 UCF R | |
| Type: | Porro prism, centre focusing (Linked-dual-axis) |
| Lens construction (objective lens) (Eyepiece lens): |
2 elements in 1 group 3 elements in 2 groups |
| Magnification: | 8x |
| Objective lens Diameter: | 21mm |
| Real field of view: | 6.2º |
| Apparent field of view: | 50º |
| Field of view at 1000m: | 108m |
| Field of view at 1000 yard: | 324 ft. |
| Exit pupil: | 2.6mm |
| Eye Relief: | 13mm |
| Relative Brightness: | 6.7 |
| Diopter adjustment range: | ±4m-1 |
| Eye Width adjustment range: | 58 - 72mm 2.3 - 2.8 inches |
| Focusing range: | Approximately 2.8m to infinity Approximately 9.2 ft. to infinity |
| Eyepiece ring: | Slide type |
| Body colour: | Black |
| Height & Width: | 83 x 110mm 3.2 x 4.3 inches |
| Thickness: | 48mm 1.9 inches |
| Weight: | 210g 7.4 oz. |
| 10x21 UCF R | |
| Type: | Porro prism, centre focusing (Linked-dual-axis) |
| Lens construction (objective lens) (Eyepiece lens): |
2 elements in 1 group 3 elements in 2 groups |
| Magnification: | 10x |
| Objective lens Diameter: | 21mm |
| Real field of view: | 5.0º |
| Apparent field of view: | 50º |
| Field of view at 1000m: | 87m |
| Field of view at 1000 yard: | 261 ft. |
| Exit pupil: | 2.1mm |
| Eye Relief: | 9.5mm |
| Relative Brightness: | 4.4 |
| Diopter adjustment range: | ±4m-1 |
| Eye Width adjustment range: | 58 - 72mm 2.3 - 2.8 inches |
| Focusing range: | Approximately 2.8m to infinity Approximately 9.2 ft. to infinity |
| Eyepiece ring: | Slide type |
| Body colour: | Black |
| Height & Width: | 80 x 110mm 3.1 x 4.3 inches |
| Thickness: | 48mm 1.9 inches |
| Weight: | 210g 7.4 oz. |
- Eyepiece Lens CapModel No. 69533
- Binocular CaseModel No. 69633
- Neck StrapModel No. 69355
UCF R Accessories
What’s In the Box
- Binocular
- Eye Lens Caps
- Case
- Strap
Model No. 62209 – 8x21 UCF R
Model No. 62210 – 10x21 UCF R
Model No. 62210 – 10x21 UCF R