
Best selling Optics accessories from Kowa
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1. Kowa Camera Adapter TSN-PA8
Compatible with the following current Kowa System-S spotting scopes: TSN 663M, 664M, TSN-601, 602, TSN-82SV. The digiscoping adapter is suitable for DSLR as well as compact and mirrorless system cameras. Digiscoping with a Kowa spotting scope has never been easier. The eyepiece is unscrewed from the scope body. The inner ring of the TSN-PA8 adapter connects directly to the accessory thread on the scope body. Then, the eyepiece is reattached to the scope, and the outer ring of the TSN-PA8 adapter can be slid over the eyepiece and secured with the knurled screw. It has been designed for use in combination with the TSE-Z9B eyepiece, allowing the entire zoom range to be utilized even when digiscoping, achieving very high focal lengths. This adapter can also be used with many older Kowa spotting scope models that have been on the market for decades.

2. Kowa Smartoscope Vario adapter for smartphones (Incl. optics arm K30)
Universal digiscoping solution for smartphones. Suitable for nearly all smartphone models and spotting scopes. Sustainably produced in Austria, ensuring short transport routes, high reparability, and future-proof design. Quick and easy to adjust, the SMARTOSCOPE VARIO universal smartphone adapter comes with the SMARTOSCOPE K30 optical arm for a fast connection to Kowa eyepiece rings and the SMARTOSCOPE UR-4 universal eyepiece ring.
Included in the package:
- SMARTOSCOPE VARIO universal smartphone adapter
- SMARTOSCOPE K30 optical arm
- Carrying strap
- User manual.

3. Kowa Adapter ring TSN-DA20
The Kowa Adapter Ring TSN-DA20 is a versatile accessory for sports optics, specifically designed for use with Kowa System-S eyepieces. It allows for compatibility with current eyepieces such as the TSE-Z9B (20-60x zoom) and the TSE-14WD (30x wide angle), as well as with the TSN-550 series spotting scopes. Additionally, the adapter is compatible with many older Kowa spotting scopes and eyepieces, making it a flexible solution for various applications. The installation of the adapter is straightforward and can be completed in no time. The TSN-DA20 enables the attachment of a camera to the spotting scope without compromising the camera's essential functions, such as autofocus and focus peaking. This opens up new possibilities for photography and digiscoping by allowing the full zoom range of the eyepieces to be utilized. The adapter is made in Japan and comes with an instruction manual to facilitate use.
- Compatible with current and older Kowa System-S eyepieces
- Easy installation by removing the eyecup
- Available with various adapter rings for different filter threads
- Retains all camera functions, including autofocus
- Full zoom range of the eyepieces remains available.

4. Kowa Oculairbeschermer TSN-CV66 For TSE-14WD And TSE-Z9B (440269)
The Kowa TSN-CV66 protective cover has been specifically designed for the telescope models TSE-14WD and TSE-Z9B, providing clear optical protection for the front of the eyepiece. This transparent protective device maintains full optical clarity while shielding the delicate lens surfaces from dust, moisture, and potential impact damage during transport and storage. Made from high-quality transparent materials, the cover allows for immediate telescope use without removal, while keeping the optical elements in pristine condition. The tailored design ensures a secure fit without compromising normal telescope operation or the field of view. With a diameter of approximately 66 mm, corresponding to the eyepiece specifications, this protective solution is designed for reliable performance under various environmental conditions. The cover's design facilitates quick installation and removal during maintenance or cleaning tasks. As an official Kowa accessory with manufacturer part number 440269, it ensures compatibility with the optical specifications of the supported telescope models. The protective function helps preserve image quality and extends the operational lifespan of the telescope system by preventing scratches, fingerprints, and dirt accumulation on critical optical surfaces. This accessory is particularly valuable for astronomers and outdoor enthusiasts who frequently transport their equipment between observation sites or store telescopes for extended periods. The standard color option ensures visual consistency with the telescope's aesthetic design while providing the necessary protective features.

5. Kowa Camera Adapter TSN-PA7
The Kowa TSN-PA7A D-SLR Digiscoping Adapter transforms a Kowa TSN 880/770 spotting scope into an extremely powerful telephoto lens for a DSLR, a compact system camera, or an MFT camera body. This allows you to not only experience breathtaking views of the world around you but also capture highly magnified, detailed, and vibrant photos and videos. The TSN-PA7A connects your camera body directly to the scope's body, including the eyepiece, via a T2 ring, creating a powerful, lightweight, and compact telephoto lens. Designed for use with Kowa zoom eyepieces TE-11WZ / TE-10Z, the design allows for full utilization of the zoom eyepiece range up to a focal length of 2,750 mm. Image sharpness is adjusted using the two focus wheels of the dual focus system. With options for fast and ultra-fine focusing, you have complete control over the focus.

6. Kowa Camera Adapter DA10 For TSN-770 ***-880
The TSN-DA10 adapter is perfect for combining compact and lightweight camera systems, such as MFT or mirrorless system cameras with or without a lens, with the eyepiece. If the lens is also to be used to access camera functions, the focal length must not exceed 50 mm (based on 35 mm). The adapter is designed for our premium spotting scope series TSN-99/88/880/770 in conjunction with an eyepiece TE-11WZ, TE-80XW, or TE-10Z. Kowa believes that digiscoping should be simple and affordable. The TSN-DA10 adapter meets both criteria. Attaching it can be done in no time. Unscrew the eyecup and attach the inner ring of the TSN-DA10 adapter to the now exposed thread. The outer ring of the TSN-DA10 adapter is secured to the filter thread of the lens using an additional adapter ring available from our accessory program (available in sizes: 28 mm, 30 mm, 30.5 mm, 37 mm, 43 mm, 46 mm, 52 mm, 55 mm, 58 mm, 62 mm, and 72 mm). Now you can slide this combination (camera + lens + DA10 outer ring) over the inner ring and secure it with the knurled screw. You can now create high-quality telephoto shots and videos, venturing into focal lengths that no conventional camera lens can reach, while the equipment remains even lighter and more compact.

7. Kowa Digiadapter Ring 42mm / T2 with Protection Glass
The Kowa TSN-AR42GT adapter ring provides a secure connection between camera bodies and spotting scopes for digiscoping applications. This precision-engineered component serves as the interface between Kowa TSN-DA20 or TSN-DA10 digiscoping adapters equipped with T2 mounts and your camera body. Featuring standard 42 mm threading, the adapter ensures reliable attachment to compatible camera systems. A key protective feature is the integrated glass layer that shields the camera sensor from environmental contaminants including dust, dirt, and moisture during outdoor use. Constructed with lightweight materials, the adapter maintains a compact profile that facilitates convenient storage and transportation. The black finish provides a professional appearance while the robust design ensures consistent performance in various field conditions. This adapter ring represents a dedicated solution for photographers and nature observers seeking to combine high-quality optics with digital imaging capabilities. The precise manufacturing tolerances guarantee secure mounting without compromising optical alignment, making it suitable for extended observation sessions and photographic documentation. With its straightforward installation process and reliable construction, this adapter supports the integration of advanced optical systems with modern digital photography equipment for enhanced observation and recording capabilities.

8. Kowa Adapter ring for eyepieces: TSE-Z9B and TSN-550 spotting scope
The Kowa Adapter Ring TSN-AR66Z is a versatile accessory for telescopes that enables a seamless connection between various eyepieces and spotting scopes. Designed for use with a range of Kowa products, including the TSE-Z9B and TSN-550 spotting scope series, this adapter ring offers a reliable solution for utilizing digiscoping techniques. The adapter ring is made from high-quality materials, ensuring a stable and precise connection that provides optimal image quality. With a 50 mm filter thread, the adapter ring is compatible with a variety of accessories, making it a practical addition for any nature observer or photographer. Made in Japan, the adapter ring reflects the high quality and craftsmanship that Kowa is known for.
- Compatible with various Kowa eyepieces and spotting scopes
- High-quality materials for durability and stability
- Easy assembly and disassembly for flexible use
- 50 mm filter thread for additional accessory compatibility.

9. Kowa TSN-AR500A Adapter ring for TSN-500 series
The Kowa TSN-AR500A adapter ring is a precision-crafted accessory that enables a seamless connection between Kowa TSN-500 spotting scopes and various camera systems. With a diameter of 40 mm, this adapter ring is specifically designed for use with spotting scopes starting from serial number 568106. It transforms your spotting scope into a powerful telephoto lens, ideal for wildlife and bird watching as well as long-distance photography. Made from a durable aluminum alloy with an anodized finish, the adapter ring ensures a secure connection and optimal optical alignment. Its compact design minimizes weight and volume, making it particularly suitable for field use. Additionally, the black surface helps to minimize light reflections during use, enhancing image quality. The adapter ring is equipped with standardized industry threads that provide a reliable connection to most digital SLR and mirrorless camera bodies.
- Precision-crafted adapter for Kowa TSN-500 spotting scopes
- Transforms spotting scope into a powerful telephoto lens
- Minimal light reflections due to black surface
- Compact design for optimal portability.

10. Kowa TSN AR30 Adapterring 30mm
The TSN AR30 adapter ring from Kowa is a high-quality accessory for digiscoping, specifically designed for use with the Kowa TSN-DA10 and TSN-DA20 adapters. With a diameter of 30 mm, this adapter ring allows for precise and seamless adjustment, ensuring an optimal connection between the telescope and the camera. The robust design of the ring provides a stable attachment that meets the demands of nature observation and photography. The easy installation allows for quick mounting, enabling users to work in the field or while observing wildlife without delay. The adapter ring is compatible with a variety of Kowa spotting scopes and eyepieces, making it a versatile solution for photographers and nature observers.
- Precise adjustment for optimal digiscoping experience
- Robust design for stable attachment
- Compatible with Kowa TSN-DA10 and TSN-DA20 adapters
- Easy and quick installation.
