Description
Kowa TSN-502 20-40x Straight Spotting Scope offers exceptional clarity and versatility for your outdoor adventures. Weighing only 400g, this lightweight spotting scope is highly portable, making it ideal for trekking, birdwatching, or sports events. Enjoy a magnification range of 20-40x, allowing you to observe targets with precision and detail even from a distance. With a minimum focusing distance of just 2.5m, you can delight in observing intricate details of plants and insects up close.
Engineered for durability, the Kowa TSN-502 is fully waterproof and nitrogen-filled, ensuring reliable performance even in challenging weather conditions. Its fully multi-coated optics provide superb clarity and brightness, making it user-friendly for all ages. Whether you are at home, at the shooting range, or out exploring nature, this compact scope meets all your viewing needs effortlessly.
Features
- LIGHTWEIGHT DESIGN at just 400g makes the Kowa TSN-502 extremely portable for outdoor adventures without adding extra burden.
- HIGH MAGNIFICATION ranging from 20x to 40x allows for detailed observation of distant subjects, perfect for birdwatching or target shooting.
- SUPERB CLARITY achieved through fully multi-coated optics ensures clear and bright images in various lighting conditions.
- WATERPROOF CONSTRUCTION protects the scope from moisture, making it reliable for use in wet environments or changing weather.
- NITROGEN-FILLED BODY prevents fogging, thus enhancing performance in extreme temperature variations.
- CLOSE FOCUS capability down to 2.5m allows for detailed examination of nearby subjects, enriching your outdoor experiences.
- USER-FRIENDLY design makes this scope accessible for users of all ages, offering ease of use in various settings.
- COMPACT SIZE measuring just 259mm in length for easy storage and transportation, perfect for travel and outdoor activities.
Technical Specifications
| Specification | Details |
|---|---|
| Magnification | 20-40x |
| Objective Lens Diameter | 50mm |
| Weight | 400g |
| Length | 259mm |
| Minimum Focusing Distance | 2.5m |
| Material | Normal lens |
| Filter Thread | 55mm |
What’s in the Box?
- Lens covers
- Padded case
- User manual
Customer Reviews
"Lightweight and easy to use, the Kowa TSN-502 has transformed my birdwatching. Highly recommend!"
"Incredible clarity for the price! A must-have for outdoor enthusiasts."
"Perfect for target shooting. The magnification range is just what I needed!"
Similar Models
Looking for the perfect companion for your outdoor explorations? Explore our extensive Kowa lineup, including models like Kowa TSN-553 for enhanced zoom capabilities and Kowa TSN-883 for superior optical performance. Discover our full collection of Kowa optics tailored for every adventure.
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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)