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Kowa TSN-664 2.6"/66mm Spotting Scope with Fluorite (Requires Eyepiece)

B&H # KOTSN664 Mfr # TSN-664
In Stock: Shipping Only
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Price: $1,020.00
Product Highlights
  • Waterproof & Fogproof
  • Straight Viewing
  • Fluorite Glass

Kowa enjoys a spectacular reputation of enduring quality internationally, where there are large numbers of nature enthusiasts.

Kowa's 66mm series employ the great features of their world class flagship model, the TSN-821 M, in a smaller scope. Despite having a larger front element than two well-known 65mm scope competitors, the heaviest of the Kowa versions is still lighter than the lightest of their European brethren.

It is entirely a matter of personal preference best determined by experience, but many feel that straight scopes offer a more intuitive way to locate your subject quickly. They're usually a bit lighter than their angled counterparts, and almost always less expensive as well.

The TSN-664 uses an element of ED (extra-low dispersion) glass in its construction, which greatly minimizes chromatic aberration. Most spotting scopes are essentially refractor telescopes built for harsh abuse, with permanently included prisms to render the terrestrial world upright and laterally correct. For all their contrast and resolution, refractor telescopes did fall out of favor with astronomers for their false coloring at the image periphery (chromatic aberration).

This problem becomes more prevalent the larger and longer the refractor is and is easily seen in astronomy-but much harder to detect in birding, for example. But if you view a bird in front of a bright sky background with a normal scope, you'll see some fringing on the edge of the subject where it meets the sky in your view. This may appear as a blue or purple hazy line. Glass with ED elements greatly reduce this effect.

Full multicoatings on all lenses and prisms
360° rotating base with click stops allows usage from many angles-even overhead
Quick-aiming sightline aids in object locating
Sliding sun shade shields unnecessary light and raindrops while providing protection for the front element (which has a 72mm filter thread)
Sealing and O-ring purging which lets you scoff at weather conditions
Adaptable to 35 mm SLR cameras, digital cameras, and video cameras with optional photo adapter
Metal alloy & carbon fiber rubber-armored construction
Objective Lens Diameter 66 mm
Minimum Focus Distance 19.7' (6.0 m)
Weatherproofing Waterproof & fogproof
Dimensions 12.2" (311 mm)
Weight 2.25 lb (1020 g)
Kowa TSN-664 2.6"/66mm Spotting Scope with Fluorite (Requires Eyepiece)
  • Front & Rear Caps
  • Limited Lifetime Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    KowaTSN-664 2.6"/66mm Spotting Scope with Fluorite (Requires Eyepiece)
     
    5.0

    (based on 2 reviews)

    Ratings Distribution

    • 5 Stars

       

      (2)

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    Reviewed by 2 customers

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    5.0

    Great Spotting Scope

    By Jump'n Jim

    from Leesburg, VA 20175

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Bright Eyepiece
    • Sensitivity Controls
    • Strong Magnification

    Cons

      Best Uses

      • Shooting

      Comments about Kowa TSN-664 2.6"/66mm Spotting Scope with Fluorite (Requires Eyepiece):

      A high quality, well built product. Optics are very clear, crisp and bright.

      • Was this a gift?:
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      (3 of 3 customers found this review helpful)

       
      5.0

      High quality optics

      By dlmphotog

      from Honolulu, HI

      About Me Casual/ Recreational

      Verified Reviewer

      Pros

      • Lightweight
      • Portable
      • QUALITY
      • Strong Magnification

      Cons

        Best Uses

        • Birding
        • Security
        • Shooting
        • Spotting
        • Surveillance
        • Wildlife

        Comments about Kowa TSN-664 2.6"/66mm Spotting Scope with Fluorite (Requires Eyepiece):

        High quality optics in a lightweight portable package. I am very impressed with the quality of this product. Construction is first rate and very solid with good ergonomic features. The optics are amazing with no color fringing or distortion. I use the scope with a KOWA TSE-Z9B 20-60x eyepiece, another quality item.

        I am amazed every time I use this scope at the distances I can see, with such detail! I can spend hours looking through the scope enjoying all the detail that has been hiding in plain sight. You can even get photos using and iPhone held up the eyepiece… The image is surrounded by a black circle but the detail is amazing.

        I would recommend the CNW-10 Kowa Cordura Carrying Case. The case is great and is very fast to open and offers protection from bumps and scrapes. You will also need a solid tripod and head as any vibration is easily seen at the high magnification this scope is capable of.

        • Was this a gift?:
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        Eyepieces & Accessories

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        Required item: Please be sure to purchase a compatible eyepiece in order to enjoy this spotting scope.

        Kowa -  TSE-Z9B 20-60x Zoom Spotting Scope Eyepiece
        • You Pay: $339.95
         

        Cleaning & Anti-Fog

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        Help keep your optics clean & fog free with these tools.

        Pearstone -  Microfiber Cleaning Cloth, 18% Gray (7 x 7.9")
        • You Pay: $4.99
         

        Strap your device securely & carry in comfort.

        Kowa -  66mm Straight Carrying Case
        • You Pay: $54.99
        Back-ordered i This item is backordered by the manufacturer. Order now and we'll deliver when available. Your account will only be charged when we ship the item
         

        Protect your lens or shade your lens from unwanted stray light.

        Tiffen -  72mm UV Protector Filter
        • You Pay: $11.90
         

        Digiscoping

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        Capture photos through the eyepiece of a birdwatcher's spotting scope.

        Kowa -  TSN-DA1 Digiscoping Digital Camera Adapter
        • Price: $140.00
         

        Attaches to lenses VIA Outside of Eyepiece, DA-1 Series Adapter ring is required. See mounts and supports.

        Tripods and Window Mounts

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        Steady your scope with the support and stability you need.

        Magnus -  DX-4330M Deluxe Photo Tripod/Monopod With 3-Way Head
        • You Pay: $39.95
         

        Mounts and Supports

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        Attach TSN-DA1 Digiscoping Digital Camera Adapter with these mounts

        Kowa -  DA-1 Series 28mm Filter Adapter Ring
        • Price: $45.00
        Usually ships in 7-14 business days i This is a special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at the time of shipment.
         

        Rugged Scoping Accessories

        Show more >

        Enhance your glassing or trekking sessions with these useful tools.

        Brunton -  9077 Lensatic Sighting Compass
        • You Pay: $6.48
         
        View all Accessories
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