Celestron 8x42 TrailSeeker ED Binocular

Model: 71405

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Packaging Info

Package Weight 2.95 lb
Box Dimensions (LxWxH) 8.9 x 8.0 x 3.7"

General Information

Objective Lens Diameter 42 mm
Angle of View 8.1° (Actual)
Field of View 426' @ 1000 yd / 141.43 m @ 1000 m
Minimum Focus Distance 6.5' / 2 m
Exit Pupil Diameter 5.25 mm
Eye Relief 17.2 mm
Prism Type Roof
Dioptric Correction ±3
Focus Type Center
Tripod Mount Yes (Adapter Optional)
Dimensions 5.5 x 4.9 x 2.0" / 14.0 x 12.5 x 5.1 cm
Weight 23.49 oz / 666.0 g
Interpupillary Adjustment 56 to 74 mm / 2.2 to 2.9"
Magnification 8x
User Reviews
B h photo.34921152
13 December 2016

The image quality of these glasses is among the best I have seen based on sharpness and brightness during low light observations. Near sunset, shady areas under bushes and in evergreen trees with dark shadows appear black or nearly so to the unaided eye.

Optics planet.32834104
4 December 2012

This little monocular is quite big in size. Have a 42mm objective with 8X magnification. Contrast is quite good for this magnification and great FOV as well. Chromatic aberation minimal. Image is sharp & crisp. But it carries quite a heavy price for this small wonder.

29 February 2012

The field of view is very relaxing to the eye and the optics are bright and precise. I am able to indentify electronic devices by type, on my towers, with this monocular due to its clarity. The compass allows me to check the positioning of antennas on towers.

B h photo.34921152
5 November 2018

Its very easy to get accurate bearings for map work because the scale is easy to read, your view is magnified, and the object-compass-eye are all lined up compared to using a compass at waist level. The optics are very good to my not so knowledgeable eyes.

B h photo.34921152
27 August 2017

I just purchased this for our safari in Tanzania. They were easy to customize the focus for my eyes and were really clear and quick to focus. I should have gotten the 10x42 though, due to the amount of birdwatching we did. Beautiful bino's love the material for handling, no slip or slide.

B h photo.34921152
21 June 2016

Purchased these for my wife who loves to watch various critters outside. We both agree the clarity and quality of these are outstanding. She's went on and on (in a good way) to friends/family about these, and how much more clearly she can see the ducks, horses, turtles, birds, etc..

B h photo.34921152
21 June 2018

I love these binoculars. I am a novice birder, and these have been amazing for getting a good look at all of the beautiful birds. They are so easy to adjust to use without my glasses, and just as comfortable and easy with them.

Castle cameras.35168857
3 August 2022


Clifton cameras.35163725
3 July 2022

  • +

    Ease of use. Sharpness of view

Wex photo video.35162390
19 October 2021

I'm coming to these from an ancient pair of 8x32's of my dad's, so I may be far more impressed by these than someone more used to modern optics. To my eyes the picture is crisp and bright, with seemingly no light lost at all.

  • +

    Build quality, Field of view, Image quality

Product Highlights
  • Extra-Low Dispersion Glass Elements
  • Phase-Corrected BAK4 Roof Prisms
  • Fully Multi-Coated Lens Surfaces
  • Wide 65° Apparent Angle of View
  • Strong Magnesium-Alloy Housing
  • Large Slip-Resistant Center Focus Wheel
  • Nitrogen-Filled Water and Fogproof
  • Tripod Mountable with Optional Adapter
  • Multi-Position Twist-Up Eyecups
  • Includes Stabilization Harness
In The Box
  • Celestron 8x42 TrailSeeker ED Binocular
  • Carrying Case
  • Harness
  • Neck Strap
  • Lens Cloth
  • Ocular Rainguard
  • 2 x Objective Caps
  • Limited Lifetime Warranty
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