Olympus 10x42 EXPS I Binoculars
- 10x magnification with 42mm Objective Lens
- Olympus' Premium Porro Line
- Great for Birding or Hunting
- Practical for Stadium Sports
- High Index BaK-4 Porro Prisms
- Fully Multicoated Optics
- Non-Slip Rubberized Coating and Grips
- Long Eye-Relief with Twist-Up/Down Eyepieces
- Large, Centre-Focus Knob
In line with the medium-level binoculars comes the Olympus 10x42 EXPS I. Offering 10x magnification and 42mm objective lens, this baby is your perfect buddy in bird viewing or hunting and is practical for stadium sports with its sharp viewing at any magnification thanks to all-glass lens system. Its high index BaK‑4 porro prisms promises a bright, crisp edge‑to‑edge images. It also provides maximum image brightness and contrast via the multi-coated lenses. Having a large, centre-focus knob, focusing fast and easy plus it features long eye-relief with twist-up/down eyepieces plus non-slip rubberized coating and grips for a sure hold.
Product Features in Detail
EXPS I Binoculars
These binoculars are popular among the hard core bird and nature watcher. They provide bright, clear vision through Olympus' special coating process. First, glare was removing by coating all the lens surfaces. An UV coat was then applied to reduce the number of UV rays that penetrate making the binoculars gentle on the eyes. Transmissivity has also been raised by keeping the loss of light to a minimum through the exclusive use of glass lenses and BaK4 prisms.
Long eye relief
The binoculars also feature long eye relief, making it easy to use even with glasses on. The large focusing knob also makes it easy to adjust the focus. The binoculars feature a stylish and ergonomic design with a refined easy to grip rubber body, streamlined design and beautiful curves. In addition, the 8x 42, 10x 42 and 12x 50 EXPS I binoculars come equipped with a strap and a case, which is made of suede.
Coating system
The multi-layer coating system removes glare, cuts UV rays and generates a bright, clear image.
Lead-free glasses
Olympus not only makes binoculars to be enjoyed outdoors, it uses environmentally friendly lead-free glasses. With Olympus, the environment is always in focus.
Usability
Long eye relief, adjustable eyepieces, large focusing knob, rubber-encased body and sleek design provide both functionality and style.
Special Features | |
Lens quality | High‑index BaK4 prisms |
Vision convenience | Long eye relief and adjustable eyepieces (twist up/down) |
Optical coating | Full multi‑coating / UV coating |
Specialty | Environmentally friendly lead‑free glass |
UV-Protection | Equipped |
Optics | |
Type | Porro‑prism series |
Diopter adjustment range | over +/‑ 2 1/m |
Eye interval adjustment range | 60 ‑ 70mm |
Lens configuration | 8 elements / 6 groups |
Magnification | 10x |
Objective lens diameter | 42mm |
Exit pupil diameter | 4.2mm |
Actual field of view | 5.5° |
Apparent angle of view | 55° |
Field of view at 100m | 9.6m |
Eye relief | 18.4mm |
Relative brightness | 17.6 |
Closest focal point | 5m |
Dimensions / Weight | |
Weight | 785g |
Width | 130mm (fully extended) |
Length | 187mm |
Thickness | 57mm |
Recommended Uses | |
Recommended Uses | Nature |
Bird Watching | |
General Purpose | |
Traveling | |
Astronomy |
Olympus 10x42 EXPS I Binoculars
Vinyl Case
Woven Strap

SKU: Olympus 133853
UPC: 50332133853