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Kowa TSN-99S High Performance Spotting Scope Kit with TE-11WZ II Eyepiece (Straight Viewing)
Kowa TSN-99S High Performance Spotting Scope Kit with TE-11WZ II WA Eyepiece

Kowa TSN-99S High Performance Spotting Scope Kit with TE-11WZ II Eyepiece (Straight Viewing)

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Your Price:
On saleCAD4,709.00
Retail Price:CAD5,429.00

Your Savings:CAD720.00(13%)

Usually ships in 5-7 Business Days
Part Number:TSN-99S ZM SET

Choose Options or Accessories if Applicable

Kowa TSN-99 / TSN-88 / TSN-770 Series
C-99A-N Neoprene Stay on Case for TSN-99A [+CAD349.00]
C-99S-N Neoprene Stay on Case for TSN-99S [+CAD349.00]
TSN-DA10 Digital Camera Adapter for TSN-99/88/880/770 Series [+CAD229.00]
TSN-DA4 Compact Camera Digiscoping Adapter (Requires TSN-DA10) [+CAD529.00]
Kowa TSN-PA7 DSLR Digiscoping Adapter for TSN-99/88/880 & TSN-770 Spotting Scopes [+CAD229.00]
TP-105FT Protective filter, Protect your TSN-99 spotting scope pure fluorite crystal objective lens [+CAD349.00]
TSN-EX16 1.6x Eyepiece Extender for TSN-99/88/880/770 Series Spotting Scopes [+CAD499.00]
TSN-EC2 Eyepiece Converter: TSN-820M Eyepieces to TSN-99/88/770 [+CAD129.00]
TSN-EC3 Eyepiece Converter: TSN-660/600 Eyepiece to TSN-99/88/770 [+CAD129.00]
TSN-CV-88A Kowa Protective Cover for TSN-99, TSN-770, and TSN-880 Series Eyepieces [+CAD129.00]
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The Kowa Spotting Scope TSN-99S Prominar is the new flagship of Kowa. The TSN-99S is equipped with a large 99mm pure fluorite crystal objective lens, which in combination with a Kowa XD lens delivers superior performance in low light. This special combination, combined with the improved optical coatings, virtually eliminates chromatic aberration, even at high magnifications. Because the TSN-99S is equipped with a dual focus mechanism, the image can be focused faster and more accurately in just a few smooth revolutions. The fine focus mechanism provides the final control to view the image razor sharp.

Because the Kowa TSN-99S uses a 100% magnesium alloy, it is a compact and lightweight spotting scope in its class. The TSN-99S is easy to carry and has a fully waterproof and nitrogen sealed housing with Kowa KR coating on the optics. This makes the binoculars reliably robust.

Kowa TSN-99S with TE-11WZ II WA eyepiece

This kit comes with the Kowa TE-11WZ II wide angle eyepiece. This eyepiece has a magnification of 30x-70x and features two XD lenses, so the images are displayed with excellent sharpness. The eyepiece is fully waterproof and features a Twist-up eyepiece ring with three positions. This allows you to adjust the distance between your eye and the eyepiece. In this way, both spectacle wearers and non-glasses wearers have a pleasant viewing experience.

"Prominar" Lens

Chromatic aberration occurs due to the diffusion of light and the different wavelengths of light that concentrate at different positions, which can result in a red or purple border around the subject. The optimal optical material to minimize chromatic aberration is Fluorite Crystal. For the convex lens of the TSN-99A/99S, a Fluorite Crystal with extremely low dispersion characteristics is used. Instead of an ordinary optical glass lens, the hollow lens in combination with the Fluorite Crystal lens is made of glass with special dispersive properties to further reduce chromatic aberration. This combination virtually eliminates chromatic aberration and redefines the standards for color brilliance.

Fluorite crystal is only used in the top models of Kowa.

Key features Kowa TSN-99S Prominar:

  • Large 99mm fluorite crystal lens
  • The fluorite used as an optical lens is an artificially grown monocrystal with "ultra-low dispersion", a property that ordinary optical glass does not have. It is an ideal lens material that almost completely eliminates chromatic aberration (colour blurring). The fluorite crystal produced by the advanced processing technology Kowa has built up over the years guarantees the ultimate viewing experience.
  • Dual focus mechanism (Quick and fine focusing)
    The fast focus, with a large and easy-to-turn knob, will focus in two revolutions from infinity to five meters. The fine focus, with smooth movements and great precision, is extremely useful at high magnifications and for digiscoping.
  • Eyepiece lock mechanism
    The eyepiece bayonet mount now has an attractive feature. An eyepiece locking mechanism has been added to the holder to prevent the eyepiece from being lost or unexpectedly falling out.
  • Strong, lightweight and portable
    Thanks to a 100% magnesium alloy body, the TSN-99 Prominar series is one of the most compact and lightweight spotting scopes of its size. A fully waterproof and nitrogen-sealed housing plus Kowa KR coating on the optics makes the spotting scope reliably robust.
  • Designed for digiscoping
  • 100% compatible with the KOWA SYSTEM. Easily change eyepieces, accessories and use digiscoping adapters for DSLR cameras and smartphones. Create a truly flexible optical instrument for many applications.
  • 10-year warranty

Expand your Kowa Spotting Scope Body TSN-99S with the right accessories:

(The accessories listed can be ordered via optional accessories)


An eyepiece should not be missing when purchasing a Spotting Scope. Without an eyepiece you can't see anything. Below is an overview of the eyepieces that fit the TSN-99S with the corresponding specifications:

Magnification 30x 70x 40x WIDE
Eye relief in mm 17,0 17,0 17,0
Exit pupil in mm 3,3 1,4 2,5
Brightness 10,9 2,0 6,3
Twilight factor 54,1 78,6 59,3
Field of view in °
Field of view / 1000m in m 35,0 20,0 37,0


When a Kowa TSN-EX16 extender is placed between the Kowa TSN-99S and the eyepiece, the magnification is increased by as much as 1.6 times. In combination with the TE-11WZ eyepiece, a magnification of 40-96x can now be achieved.

Astro Adapters

With the use of a Kowa Astronomy adapter, the TSN-99S can also be used for night-time celestial observation and photography. For this purpose a universal 1.25" astro eyepiece can be used.

Two variants are available; the TSN-AS1.25K has knurled screws with which eyepieces can be tightened by hand. This allows you to quickly change eyepieces. The TSN-AS1.25G is supplied with an Allen key. The advantage is that there are no protruding screws visible.
When the TSN-EX16 extender is combined with an Astro adapter, the TSN-99S can even be used for deep sky observations.

Digiscoping Adapter

It is also possible to use your Kowa TSN-99S as a powerful telephoto lens in combination with your DSLR or system camera or even in combination with your smartphone. In this way you will be able to capture the most detailed and vivid photos of subjects you would otherwise not be able to get close enough to.

By using the TSN-PA7A, you connect the TSN-99S directly to your DSLR camera by means of an optional T2 ring. This creates a powerful yet lightweight and compact telephoto lens compared to traditional telephoto lenses.

Designed for use with Kowa's TE-11WZ II zoom eyepiece, the design makes full use of the eyepiece's zoom range, up to a focal length of 2570mm.


The TSN-DA10 is perfect for the compact and lightweight Micro Four Thirds cameras. Using the TSN-DA10 and an optional adapter ring, everything is ready for use within a minute. The optional adapter ring is available in various sizes, depending on the filter size of your lens: AR28/30/30.5/37/43/46/52/55/58/62/72mm.

Smartphone Adapters
If you would like to make photo and video recordings with your smartphone, this can be done by using a Kowa Smartphone adapter which is specially made for your smartphone. This smartphone adapter is a protective cover that can remain in place around your smartphone and offers protection against falls and knocks.

This smartphone adapter simply slides onto the eyepiece of the TSN-99S by means of a TSN-AR11WZ adapter ring and the whole thing is ready for use.

Protective equipment

To protect your valuable Kowa TSN-99S, you can choose to complete it with the accessories listed below:

  • Kowa C-992 water-repellent Stay-On Bag
    The water-repellent bag has been specially designed for the Kowa TSN-99S and provides good protection during use and on the move. It comes with a shoulder strap that allows the spotting scope to be carried close at hand at all times and allows quick observation. The bag can remain wrapped around the scope while in use. The covers of the objective lens and eyepiece can be removed very quickly and all controls remain accessible.
  • Kowa TSN-CV88 Eyepiece protector
    This eyepiece protector prevents scratching of the eyepiece lens or its coating due to unfavourable conditions or transport. By using an eyepiece protector, costly repairs can be prevented.
  • Kowa TP-105FT Protective filter
    Using a protective filter for the lens reduces the risk of damage to the lens and avoids costly repairs. This can extend the life of the spotting scope. The Kowa TP-105FT protective filter has oil and water repellent coatings and ensures that sand and sea salt do not get on the lens. This keeps the objective lens with the special coatings undamaged.

Damage to the objective lens can drastically reduce optical performance, which also causes costly repairs. Precisely because the TSN-99S is equipped with a lens made of pure fluorite crystal. Often, the only option left is to completely replace the entire lens.That is why using protection is advisable.

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