Description
Swarovski BTX Eyepiece Module 49903 is engineered for unmatched user comfort during long-range viewing. This innovative eyepiece seamlessly fits with all ATX/STX objective lenses (65mm, 85mm, and 95mm), allowing observers to use both eyes simultaneously. By enhancing ergonomics, it significantly increases comfort while delivering outstanding image quality.
Featuring adjustable eyepieces for interpupillary distance and a right eyepiece diopter adjustment, the BTX ensures a personalized viewing experience. The integrated forehead rest enhances stability and comfort, while the SWAROVISION Field Flattener and High Definition Lenses eliminate distortion and enhance color contrast. Although it does not include a zoom eyepiece, it is compatible with the optional 1.7x Magnification Extender for increased versatility.
Features
- COMFORTABLE VIEWING - The dual-eye usage allows for prolonged viewing without eye strain, making long-range observations more enjoyable.
- COMPATIBLE DESIGN - Works seamlessly with all ATX/STX objective lenses, allowing users to customize their spotting scope experience.
- ADJUSTABLE INTERPUPILLARY DISTANCE - Customize the eyepiece for personal comfort, ensuring the perfect fit for every user.
- DIAMETER ADJUSTMENT - Right eyepiece diopter adjustment provides clear images tailored to individual eyesight requirements.
- OPTIMUM STABILITY - An adjustable forehead rest offers enhanced stability and comfort, perfect for extended periods of use.
- FIELD FLATTENING TECHNOLOGY - SWAROVISION technology eliminates distortion, providing sharp images across the entire field of view.
- SUPERIOR LENS COATINGS - SWAROTOP, SWARODUR, and SWAROCLEAN coatings protect the glass, enhancing durability and clarity.
- FUNCTIONAL TEMPERATURE RANGE - Operates effectively in temperatures from -13° to 131° F, ensuring reliability in varied conditions.
Technical Specifications
| Specification | Details |
|---|---|
| Close Focus Range | 7.2ft (65mm), 12.5ft (85mm), 16.4ft (95mm) |
| Weight | 50.0oz (Eyepiece Only), 77.3oz (w/65mm), 88.8oz (w/85mm), 97.3oz (w/95mm) |
| Field of View | 2.1° (65mm), 2.1° (85mm), 1.8° (95mm) |
| Magnitude Range | 30x (65mm/85mm), 35x (95mm), 51x/58x (with 1.7x Extender) |
What’s in the Box?
- BTX Eyepiece Module
- User Manual
- Warranty Registration Card
Customer Reviews
"The comfort of using both eyes is a game-changer for long sessions." - John D.
"Absolutely love the clarity and reduced fatigue compared to traditional scopes." - Mary S.
FAQ
Many users inquire about the performance of the BTX compared to traditional zoom eyepieces. While the BTX does not zoom, it offers superior image quality and comfort, particularly for extended use. Users report excellent clarity without distortion.
Maintenance is straightforward. Regularly cleaning the lenses with the SWAROCLEAN coating ensures optimal performance. Additionally, stored in its case, the eyepiece will maintain its quality over time.
For those considering alternatives, many choose Swarovski for reliability and image quality, particularly for nature watching and long-range observation. The BTX stands out for its dual-eye use, setting it apart from single-eye optics.
Similar Models
Explore other exceptional products from Swarovski. Consider the ATX/STX Objective Lenses for greater customization or the Swarovski EL Series Binoculars for premium viewing experiences. Browse our full collection for top-tier optics tailored to meet your outdoor adventures.
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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)