Description
The Zeiss Terra ED 8x42 Gray Binoculars, model 524203-9907-000, are an embodiment of superior optical performance in a sleek and rugged design. Perfect for those who revel in the intricate details of the great outdoors, these binoculars are engineered for uncompromising clarity and comfort. With a weight of just 25.6 ounces and dimensions of 5.6 x 4.7 inches, the Terra ED 8x42 is remarkably lightweight and compact, ensuring ease of handling during extended periods of use.
Constructed with a durable frame and equipped with a wide field of view spanning 375 feet, the Zeiss Terra ED 8x42 binoculars make it almost effortless to track wildlife and other objects at a distance. The impressive close focus range of 5.25 ft allows observers to enjoy intricate detail in stunning proximity. With an 18mm eye relief, users can expect a comfortable viewing experience, even for eyeglass wearers.
One of the standout features of the Terra ED 8x42 is its 42mm objective diameter, delivering bright images even in low-light conditions, reinforced by a twilight factor of 18.3. The advanced optics with an angular field of view of 56 degrees promise expansive landscapes and crystal-clear observations. Zeiss's commitment to quality is evident in every aspect of this binoculars’ design, ensuring it's an investment that nature enthusiasts and hunters alike can count on for years to come.
Zeiss Terra ED 8x42 524203-9907-000 Features
- LIGHTWEIGHT DESIGN: Ultra-portable at 25.6 oz, the Zeiss Terra ED 8x42 is built for on-the-go observation without the burden of added weight.
- EXCEPTIONAL CLARITY: Boasts a wide 375 ft field of view and 5.3 mm exit pupil for sharp, bright images across expansive areas.
- CLOSE-UP DETAIL: With a remarkable 5.25 ft close focus range, witness the finer details of nature in breathtaking proximity.
- COMFORTABLE VIEWING: The generous 18 mm eye relief provides ease and comfort, especially for those who wear eyeglasses.
- LOW-LIGHT PERFORMANCE: A twilight factor of 18.3 ensures enhanced visibility in challenging lighting conditions.
- WIDE FIELD OF VIEW: The 56-degree angular field of view captures more of the environment in high-definition quality.
- DURABLE AND RUGGED: Built to withstand the rigors of outdoor use with a sturdy construction and ergonomic grip.
- PRECISION ENGINEERED: The reliable performance of Zeiss optics delivers on the promise of excellence associated with the brand.
Zeiss Terra ED 8x42 524203-9907-000 Specifications
| Feature | Specification |
|---|---|
| Weight | 25.6 oz |
| Dimensions | 5.6 x 4.7" |
| Eye Relief | 18 mm |
| Field of View | 375 ft |
| Angular Field of View | 56 degrees |
| Exit Pupil | 5.3 mm |
| Twilight Factor | 18.3 |
| Close Focus Range | 5.25 ft |
| Interpupillary Distance | 58 - 75.5 mm |
| Objective Diameter | 42mm |
| Product Type | Binoculars |
| Item Condition | New |
| UPC | 740035998094 |
| MPN | 524203-9907-000 |
Included In The Box
- Zeiss Terra ED 8x42 Gray Binoculars 524203-9907-000
- Protective Lens Caps
- Neoprene Carrying Strap
- Durable Carrying Case
- Lens Cleaning Cloth
- User 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)