Electronics / Cameras
Bushnell Legend Ultra HD 10x 42mm Monocular User Manual
Comprehensive user guide for the Bushnell Legend Ultra HD 10x 42mm monocular, covering setup, eyecup adjustment, focusing, maintenance, and warranty information.
Table of contents
Product Overview
The Bushnell Legend Ultra HD 10x 42mm monocular is a high-performance optical instrument designed for clarity and durability. It features ED Prime Extra-Low Dispersion glass to minimize chromatic aberration, PC-3 phase-coated prisms for enhanced resolution, and Ultra Wide Band Coating to optimize light transmission. The unit is waterproof and fogproof, utilizing O-ring seals and dry nitrogen purging to prevent internal moisture buildup.
Setup and Adjustment
The monocular is equipped with a twist-up eyecup for user comfort and to block extraneous light. For users without eyeglasses, rotate the eyecup counter-clockwise until it locks into the fully up position. If you wear glasses, keep the eyecup in the down position to ensure the full field of view. The eyecup can also be set to intermediate positions if preferred.
To focus, use the center focus knob while looking at a distant object with fine detail until the image appears as sharp as possible. Once adjusted, the monocular is ready for use at various distances.
Safety and Care
Never look directly at the sun through the monocular, as this can cause serious eye damage. To ensure long-term performance, avoid sharp impacts and store the device in a cool, dry place. Always verify that the carrying strap is securely fastened before use.
Cleaning
To clean the lenses, first blow away dust or debris, or use a soft lens brush. Use the provided microfiber cloth in a circular motion to remove fingerprints or dirt. For thorough cleaning, use photographic lens tissue with a small amount of lens cleaning fluid or isopropyl alcohol applied to the cloth, never directly to the lens surface.
Tactical Features
The monocular includes a Picatinny rail, allowing for the attachment of various lights and tactical sights. Certain models (191144) feature a mil-hash reticle for range estimation and target tracking.
Manufacturer information
Bushnell
Practical help
Common problems
Blurry image
Adjust the center focus knob while viewing a distant object with fine detail until the image is sharp.
Reduced field of view while wearing glasses
Ensure the twist-up eyecup is in the fully down position to bring your eyes closer to the ocular lens.
Dirty or smudged lenses
Blow off loose debris, then gently clean with the provided microfiber cloth. Use photographic lens fluid on the cloth if necessary.
Before use
- Check that the carrying strap is securely attached.
- Adjust the eyecup position based on whether you wear glasses.
- Ensure the lens surfaces are clean and free of debris.
- Verify the focus knob moves smoothly.
Specs in practice
- ED Prime Glass
- Extra-Low Dispersion fluorite glass that reduces color fringing and improves contrast.
- PC-3 Phase Coating
- Chemical coating on the prism to enhance image resolution and clarity.
- Ultra Wide Band Coating
- 60 layers of coating per prism to optimize light transmission and brightness.
- Waterproof/Fogproof
- O-ring sealed and nitrogen-purged to prevent internal fogging and moisture damage.
Images and diagrams
- Fig. 1 shows the eyecup in the 'up' position for users without glasses.
- Fig. 2 shows the eyecup in the 'down' position for users with glasses.
Model compatibility
- The integrated Picatinny rail is compatible with various tactical lights and sights.
- Model 191144 includes a specific mil-hash reticle for range estimation.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.