Description
The Kowa TSN-99S PROMINAR 30-70x99 Straight Spotting Scope Kits is engineered for exceptional performance in various outdoor settings. Its large 99mm fluoride crystal objective lens delivers unparalleled low-light clarity and detail, ensuring you capture the finest nuances in nature. The unique optical design, paired with advanced coatings, significantly reduces chromatic aberration even at maximum magnification, providing a crisp and clear image throughout the zoom range.
With a dual focus mechanism, this spotting scope allows for rapid adjustments and precise control. The quick focus enables you to rapidly bring your subject into sharp detail, while the fine focus offers pinpoint accuracy for the ultimate viewing experience. Weighing just 64.7 oz and constructed from 100% magnesium alloy, it remains lightweight and portable for easy transport during all your adventures. Additionally, its waterproof and fog-proof design ensures reliability in any weather condition.
Compatible with the KOWA SYSTEM accessory range, the TSN-99S opens up possibilities for digiscoping with DSLRs and smartphones, making it a versatile optical tool for wildlife observation, birding, and more. Elevate your outdoor experience with the Kowa TSN-99S PROMINAR spotting scope.
Features – Key Benefits Bullets
- LARGE 99MM OBJECTIVE LENS for superior low-light performance and exquisite detail.
- DUAL FOCUS CONTROL for quick adjustments and precise image clarity in any setting.
- LIGHTWEIGHT & PORTABLE design at just 64.7 oz, ideal for field use without added bulk.
- WATERPROOF & FOGPROOF construction ensures reliability in diverse weather conditions.
- KOWA SYSTEM COMPATIBILITY allows for various accessories and digiscoping options.
- EXCELLENT CHROMATIC ABERRATION CONTROL for clear and accurate color representation.
- IMPROVED OPTICAL COATINGS enhance light transmission for bright, vibrant images.
- DURABLE MAGNESIUM ALLOY BODY provides strength without the weight, built for the outdoors.
Technical Specifications Table
| Specification | Details |
|---|---|
| Magnification Factor | 30-70x |
| Objective Size | 99.0 mm |
| Exit Pupil | 3.3-1.4 mm |
| Eye Relief | 17.0 mm |
| Close Focus | 19.7' |
| Angular Field of View | 59-70° |
| Linear Field of View | 105-60 feet at 1000 yards |
| Relative Brightness Index | 10.9-2.0 |
| Prism Type | XD glass |
| Weather Protection | Waterproof, Fogproof |
| Classification | Bird / Nature, Hunting / Wildlife, Hiking / Camping |
| Weight | 64.7 oz |
| Dimensions | 14.3" |
| Color | Green |
What’s in the Box?
- Kowa TE-11WZ II 30-70x zoom eyepiece
- Supplied accessories may vary by region or by country
Customer Reviews
“This scope has unmatched clarity and is perfect for birdwatching!”
“Extremely lightweight yet durable, a great option for hiking trips.”
“The dual focus feature is a game changer, so easy to use.”
FAQ
What is the best use for the Kowa TSN-99S PROMINAR?
This spotting scope is perfect for birdwatching, wildlife observation, and nature photography, thanks to its high magnification and excellent optical quality.
How do I maintain the spotting scope?
Regularly clean the lenses with a soft cloth and ensure that the scope is stored in a dry environment. Use lens caps when not in use to protect from dust and scratches.
Is this spotting scope suitable for beginners?
Yes, its intuitive dual focus mechanism and lightweight build make it user-friendly for both novices and experienced users alike.
Similar Models
Explore our complete Kowa lineup for additional options. If you're interested in high-performance optics, consider the Kowa TSN-88X series for enhanced portability or the Kowa TSN-663 for compact viewing. Discover the ideal spotting scope tailored to 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)