• Extra-Low Dispersion (ED) Glass
• Anti-Reflection Fully Multicoated Glass
• Compact BAK4 Roof Prisms
• Dielectric Coated & Phase Corrected
• Ultra-Wide 4° Apparent Angle of View
• Short 4.9' Close Focus Distance
• Long Eye Relief, Comfortable Exit Pupil
• Nitrogen Filled, Water & Fogproof
• Lightweight & Strong Magnesium Housing
• Tripod Mountable with Optional Adapter

Designed as your go-to multipurpose outdoor optic that is optimized for long-range use, the Celestron 10x42 Regal ED Binocular features a suite of technologies and design features that will make it an essential part of your kit whether you're hunting, birding, or hiking.

Anti-reflection fully multicoated high-performance extra-low dispersion glass lenses with integrated field flatteners deliver crisp, true-color images of breathtaking landscapes and vistas free from distortion. Phase-corrected and dielectric-coated BAK4 roof prisms maximize light transmission through the prism system, limiting internal diffraction and interference and improving image resolution and contrast. A comfortable exit pupil and an exceptional long eye relief virtually eliminate eye strain to greatly improve your glassing experience. When you put all these optical features together, you are presented with crisp and sharp high-contrast wide angle views with accurate color across the entire visible spectrum with limited distortion, especially at the edges.

Complementing its optical performance is a lightweight magnesium housing that is nitrogen filled and O-ring sealed to make it waterproof and resistant to internal fogging when you move through extreme changes in temperature or environmental conditions. The body features an ergonomic design with rubber armor and strategically placed texture that offers a secure hold and a pleasant handling experience, with the large center focusing knob providing smooth adjustments. To help you with focusing and correcting for dioptric differences, the focus knob and the diopter ring are knurled and can be easily adjusted even when wearing gloves. Ideal for fast glassing on the go, the Regal ED comes with tethered caps that won't get lost when you're out and about and a shoulder harness that eliminates strain on your neck and prevents it from swaying and swinging if you need to climb over rough and rocky terrain.

Optical Performance

• High 10x magnification allows for detailed observation of distant subjects
• 42mm objective lenses draw in the light required to extend its use in challenging conditions without being too bulky or heavy
• Roof prism light path keeps the optical tubes thin for easier handling and packing
• BAK4 prisms deliver a round exit pupil and a crisp and clear image with limited edge distortion
• Phase-corrected prism coatings reduce internal interference to improve contrast and resolution
• Highly reflective dielectric prism coatings maximize light transmission through the prism system
• Extra-low dispersion (ED) glass lenses offer true color representation, with improved clarity, contrast, and sharpness across the entire field of view
• Integrated field flatteners correct lens edge distortion to produce crisp views across the entire field of view
• Anti-reflection fully multicoated optics enhance light transmission for brighter and sharper views with enhanced contrast
• Short 4.9' minimum focus distance is ideal for observing small subjects like hummingbirds, bugs, insects, flora & fauna at close range like at feeders or in gardens
• Ultra-wide 65° apparent angle of view presents an immersive observational experience, limiting the need for the user to move their head side to side to see the entire landscape and reducing the appearance of distracting hand shake
• Spacious 340-foot field of view at 1000 yards

Use and Handling

• Closed-bridge configuration provides a stable platform for the internal focusing mechanism
• Large knurled focus wheel is easy to manipulate in cold and wet weather or when wearing gloves
• ±2 diopter adjustment on the right ocular enables precise focusing even for users who normally wear corrective lenses
• Twist-up click-stop rubber eye cups for comfortable viewing with or without eyewear
• Integrated 1/4"-20 socket on front of bridge hinge enables the use of an optional tripod adapter for hands-free viewing
• Exceptional 20.2mm eye relief helps to eliminate eye strain, especially during long glassing sessions
• 4.2mm exit pupil will cover most pupils in low and challenging light conditions, ensuring the entire scene remains in view without vignetting

Construction Details

• Strong and lightweight magnesium housing
• Slip-resistant armor with textured palm pads improve grip security
• Nitrogen filled and O-ring sealed to be waterproof and resistant to internal fogging
• Tethered one-piece ocular rainguard and objective lens covers protect the lens surfaces without the fear of losing them when using the binocular
• Binocular harness shifts the weight from the neck to shoulders for more comfortable carrying while limiting swing and sway when moving over uneven ground
• Weight: 27.1 ounces

What’s Included?

• Celestron 10x42 Regal ED Binocular
• Lens Cloth
• Neck Strap
• Carrying Harness
• Hard Carrying Case with Strap
• Ocular Rainguard
• 2 x Objective Lens Cap
• Limited Lifetime Warranty

Specification

Prism Type	Roof (BAK4)
Magnification	10x
Objective Lens Diameter	42 mm
Angle of View	6.5° (Actual)
Field of View	340' @ 1000 yd / 112.88 m @ 1000 m
Minimum Focus Distance	4.9' / 1.49 m
Exit Pupil Diameter	4.2 mm
Eye Relief	20.2 mm
Interpupillary Adjustment	56 to 74 mm / 2.2 to 2.9"
Diopter Adjustment	-2 to +2
Focus Type	Centre
Fogproof	Yes, Nitrogen Filled
Water Resistance	Waterproof
Dimensions	5.98 x 5.12 x 2.24" / 15.2 x 13 x 5.7 cm
Weight	27.09 oz / 768 g
Package Weight	3.08 lb
Box Dimensions (LxWxH)	9.2 x 8.4 x 3.3"