Description
The Zeiss SFL 8x40 UHD Binoculars (524023-0000-000) redefine portability and performance for outdoor enthusiasts and rifle scope shoppers seeking the best in optical quality. These binoculars feature Zeiss's cutting-edge Ultra-High-Definition (UHD) concept, combining superior clarity with state-of-the-art lens coatings for an exceptional viewing experience in all lighting conditions. They are engineered with a sturdy yet lightweight magnesium housing, making it easy to carry them throughout long hunting sessions or bird-watching expeditions without fatigue.
Designed for those who demand precision and easy handling, the Zeiss SFL 8x40 UHD Binoculars boast the innovative SmartFocus Concept. The focusing wheel is strategically placed for effortless adjustments, requiring minimal turns to traverse from a close focus to infinity. This is particularly advantageous while wearing gloves in cold weather. Enhanced ergonomics come into play with the improved eyecups and generous exit pupil, ensuring comfortable and rapid eye alignment for extended periods of observation.
These binoculars not only lead in ergonomics but are also uncompromising in their optical performance. With Zeiss T* multicoating and LotuTec lens coating, users experience brilliant light transmission rates of 90% and a clear view despite rain, snow, or condensation. Hunters and birders will appreciate the natural color reproduction, precise detail, and the wide field of view that promises a complete immersive experience in the wild.
Features of the Zeiss SFL 8x40 UHD Binoculars (524023-0000-000)
- ULTIMATE PORTABILITY: Exceptional balance between lightweight construction and robust performance for on-the-go use.
- ERGONOMIC DESIGN: SmartFocus wheel easily operated within reach, enabling quick adjustments in any environment.
- OPTICAL BRILLIANCE: UHD concept with specialized coatings for 90% light transmission and precise detail recognition in dim conditions.
- COATING EXCELLENCE: Zeiss T* multicoating and LotuTec coating ensure a clear view in adverse weather conditions.
- COMFORTABLE VIEWING: Refined eyecups and a wide exit pupil for a seamless viewing experience with or without eyewear.
- EXPANSIVE VIEW: Impressive field of view at 420 ft/1000 yards, providing an immersive observational experience.
- QUICK FOCUS: Fast and precise focusing capability, from close focus to infinity with minimal effort.
- DURABLE BUILD: Crafted with a solid magnesium housing for longevity and resistance to the elements.
Specifications
| Feature | Specification |
|---|---|
| Binocular Weight | 22.6 oz |
| Binocular Magnification | 8x |
| Objective Lens Diameter | 40mm |
| Binocular Eye Relief | 18mm |
| Exit Pupil Diameter | 5mm |
| Field of View | 420 ft @ 1000 yards |
| Dimensions | Length: 5.7 inches |
| Angular Field of View | 60° Ww |
| Twilight Factor | 17.9 |
| Color | Black |
| Light Transmission | 90% |
| Close Focus Range | 4.9 ft |
| Interpupillary Distance | 114 mm |
| UPC | 740035016255 |
| MPN | 524023-0000-000 |
Included In The Box
- Zeiss SFL 8x40 UHD Binoculars (524023-0000-000)
- Protective Lens Caps
- Neoprene Carrying Strap
- Cordura Bag with Belt Loop
- Lens Cleaning Cloth
- Instruction Manual
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Optics Knowledge Center
Understanding Rifle Scope Basics
Magnification
Magnification refers to how much larger an object appears through the scope compared to the naked eye. Fixed power scopes have one magnification setting, while variable power scopes offer a range (e.g., 3-9x).
Objective Lens
The objective lens is the front lens that gathers light. Larger objective lenses (measured in mm) gather more light, providing brighter images in low-light conditions but add weight and require higher mounting.
Reticle
The reticle (crosshair) is the aiming point inside the scope. Modern scopes offer various reticle designs, from simple duplex crosshairs to complex ballistic reticles with holdover points for different distances.
Adjustments
Rifle scopes have turrets for windage (horizontal) and elevation (vertical) adjustments. These are measured in MOA (minutes of angle) or MRAD (milliradians) and allow precise aiming adjustments.
Proper Scope Mounting Guide
Select the Right Rings & Base
Choose rings that match your scope's tube diameter (typically 1", 30mm, or 34mm). Select a base compatible with your rifle's receiver. For heavy-recoiling rifles, opt for stronger mounts.
Install the Base
Clean the receiver and base thoroughly. Apply a small amount of blue Loctite to the screws. Attach the base to the receiver and torque the screws to manufacturer specifications.
Attach the Rings
Attach the bottom halves of the rings to the base. Place the scope in the rings and loosely attach the top halves. Don't fully tighten yet.
Set Eye Relief & Level
Position the scope for proper eye relief (3-4 inches) in your normal shooting position. Ensure the reticle is level using a scope leveling tool. Once positioned correctly, tighten the rings evenly in a cross-pattern.
Scope Zeroing Tips
Start Close
Begin zeroing at a shorter distance (25-50 yards) to ensure you're on paper before moving to your desired zero distance (typically 100 yards).
Use a Stable Rest
Always zero your rifle from a stable shooting position using a bench rest, sandbags, or a shooting rest to eliminate as much human error as possible.
Fire Groups
Fire 3-shot groups before making adjustments. This provides a more accurate representation of where your rifle is shooting than single shots.
Make Deliberate Adjustments
Know your scope's adjustment values (typically 1/4 MOA per click). If your group is 2 inches low at 100 yards, you'll need to adjust up 8 clicks (for a 1/4 MOA scope).
Confirm Your Zero
After making adjustments, fire another group to confirm your zero. Repeat the process until your point of impact matches your point of aim.
Document Your Settings
Once zeroed, record your settings including distance, ammunition used, and environmental conditions for future reference.
Optics Maintenance & Care
Cleaning Lenses
- Start by blowing or brushing away loose particles
- Use a lens pen or microfiber cloth for fingerprints
- For stubborn dirt, use lens cleaning solution (never household cleaners)
- Clean with gentle circular motions from center outward
Protecting Your Optics
- Always use lens caps when not in use
- Store in a dry place with silica gel packets
- Avoid extreme temperature changes
- Use a quality scope cover in harsh conditions
Regular Maintenance
- Check and tighten mount screws periodically
- Inspect O-rings and seals for damage
- Verify zero after rough handling
- Clean the exterior with a damp cloth
What to Avoid
- Never use fingers to touch lenses
- Avoid paper products (tissues, paper towels) on lenses
- Don't use acetone, alcohol, or household cleaners
- Never disassemble your scope (voids warranty)