Description
Kowa TSN-770 Series 77 mm Prominar Spotting Scope delivers exceptional optical performance with its 77 mm fully multicoated fluorite crystal lens, providing over 99% light transmission for enhanced brightness and clarity in various lighting conditions. Designed for both birdwatching and hunting, this scope features a minimum close focus of 16.5 feet, allowing you to observe details from a distance or close range. With a rugged, nitrogen-filled body, it remains waterproof and fog-proof, ensuring reliability in all weather conditions.
The magnesium alloy construction adds durability without sacrificing weight, making it ideal for outdoor activities. Its dual focusing system enables precise adjustments for quick and efficient viewing, while the eco-friendly lens technology ensures a clear and vibrant image with true color fidelity. Designed with outdoor enthusiasts in mind, this spotting scope is perfect for digiscoping, providing a versatile option for capturing stunning images in nature.
Features – Key Benefits Bullets
- HIGH LIGHT TRANSMISSION for crisp, clear views in low-light conditions.
- LIGHTWEIGHT MAGNESIUM ALLOY BODY for easy portability during long outings.
- DURABLE WATERPROOF DESIGN protects against rain and moisture.
- NITROGEN FILLED to prevent fogging inside the scope.
- DUAL FOCUSING SYSTEM allows for quick and precise adjustments.
- FLUORITE CRYSTAL LENS provides exceptional color fidelity and sharpness.
- CLOSE FOCUS DISTANCE of 16.5 feet for detailed observations.
- 10 YEAR WARRANTY ensures long-lasting quality and peace of mind.
Technical Specifications Table
| Specification | Detail |
|---|---|
| Objective Lens Diameter | 77 mm |
| Weight | 46.9 oz |
| Length | 12.5 in |
| Close Focus | 5 m or 16.5 ft |
| Included Accessories | None (body only) |
What's in the Box?
- Body of Kowa TSN-770 Series Spotting Scope
Customer Reviews
"The clarity is phenomenal, even at dusk! Perfect for my birdwatching trips." - Alex S.
"Lightweight and easy to carry, this scope has become my go-to for hunting." - Jenna K.
"Amazing close focus capability. I can see details I never noticed before!" - Mark T.
FAQ
What is the performance in low-light conditions? The Kowa TSN-770 excels in low-light situations due to its large 77 mm objective lens and fully multicoated fluorite crystal glass. This design maximizes light transmission, providing bright and clear images even during dawn or dusk.
How do I maintain the spotting scope? Regular maintenance includes cleaning the lenses with a soft, dry cloth and storing the scope in a protective case. Avoid exposing it to extreme temperatures and never use abrasive materials that could scratch the lens.
How does this compare to other scopes? Compared to similar models, the Kowa TSN-770 offers superior light transmission and color fidelity, making it a top choice for serious birdwatchers and hunters alike. Its lightweight and durable design also sets it apart, providing ease of transport without compromising on quality.
Similar Models
Looking for high-performance optics? Explore the full range of Kowa spotting scopes, including models like the Kowa TSN-883 for advanced features and the compact Kowa TSN-601, perfect for travel. Discover our complete collection to find the right scope tailored to your needs for nature observation or hunting.
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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)