Coupling a compact, palm-sized body with 21mm objective lenses, the UCF R 8×21 provides outstanding optical performance and go-anywhere portability for a wide variety of applications, from outdoor nature observation to indoor theatrical viewing.
Combining multi-coated optical elements with high-refraction BaK4 glass prisms, the UCF R 8×21 assures high light transmission and reflection for a bright, clear image field. It also incorporates aspherical optical elements to deliver a clear, well-defined image with minimal distortion, even at the edges.
The UCF R 8×21 is encased in a durable rubber housing to ensure a firm, comfortable hold and excellent shock-resistant performance.
The PENTAX-original dual-axis eye-distance adjustment system makes it quick and effortless to adjust the distance between two eyepieces, even when you share the binoculars with someone else.
|Models||8 x 21 UCF R|
|Type||Porro prism, center focusing (Linked-dual-axis)|
|Lens construction||(Objective lens)2 elements in 1 group|
(Eyepiece lens)3 elements in 2 groups
|Objective lens Diameter||21mm|
|Real field of view||6.2°|
|Apparent field of view||50°|
|Field of view at 1000m||108m|
|Field of view at 1000 yard||324ft|
|Diopter adjustment range||±4m-1|
|Eye Width adjustment range||58 – 72mm|
2.3 – 2.8 inches
|Focusing range||Approximately 2.8m to infinity|
Approximately 9.2ft to infinity
|Eyepiece ring||Slide type|
|Height & Width||83 x 110mm|
3.2 x 4.3 inches
|Accessories||Eyepiece lens cap, Case, Strap|