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Kowa TSN-GA4S/GA5S Digiscoping adapter


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TSN - GA4S / GA5S Samsung Galaxy S4 / S5 Digiscoping holder 

Transform your Samsung Galaxy S4/S5 into a super telephoto lens. Now you can combine the high quality camera and HD video functions of your Samsung Galaxy S4/S5 with the power and quality of a spotting scope or binocular to create an ultra compact, high quality super telephoto lens. The Samsung Galaxy S4/S5 adapter marks a true innovation in the world of digiscoping and opens up this once expensive and technical hobby, to even the most basic and inexperienced user. With ease the adapter allows you to maximise the high photographic qualities of your iPhone’s camera with the super optical zoom power of a scope or binocular. The results are truly spectacular!

It couldn’t be simpler to start taking magnified images or HD video with your Samsung Galaxy S4/S5 and optical equipment via the Kowa digiscoping adapter. Simply slot your iPhone into the holder and screw on the appropriate adapter ring - that’s all there is to it - then push the adapter over the eyepiece of your spotting scope and you’re ready to digiscope - the whole process takes seconds. For those who prefer a more solid and permanent connection between iPhone and spotting scope - the TSN-GA4s/5S is compatible via an adapter ring with our DA10 collar - which can be screwed in to larger eyepieces and locked into place. The Samsung Galaxy is a great way to digiscope - the large highly detailed screen is perfect for composing your image. Thanks to the connectivity of the phone, you can quickly upload and share your unique and high quality images with friends, family and the rest of the world online! 


Due to the unrivalled high magnifications that can be achieved in digiscoping, it can be a challenging but also very rewarding method of telephoto photography. Try the following useful tips to help you get the best from your phone digiscoping experience: 

1. We recommend that you attach the supplied neck strap to the phone holder and wear it around your neck whilst in use. 

2. If possible - use your phone hands free shutter release functions. The less contact you make with your phone when taking the shot, the less chance of camera shake resulting in a blurred image.

3. A sturdy tripod with a good, smooth video panning head is highly recommended to keep your digiscoping setup stable. Good light is essential in digiscoping resulting in faster shutter speeds to help freeze the motion of your subject and minimise camera shake.

Please Note: Kowa accept no responsibility for any damage which may occur when connecting our product with other manufacturers optical instruments.
Always read the supplied instructions before use.

Included adapter rings
Model Number / description
Diameter (mm)
Standard scope adapter ring
Compatible Kowa products:
TSN-880/770 spotting scopes eyepieces
TE-10Z (20-60x zoom) & TE-17W (30x wide)
Standard Binocular adapter ring
Compatible Kowa products:
SV50, SV42, SV32, YF30, BD42, BD32


Optional adapter rings
Model Number / description
Diameter (mm)
Compatible Kowa products:
TSN-660/600/550/82SV/820/820M/550 spotting scopes eyepieces: TE-9Z, TE-9WD, TE-7Z, Highlander 50x eyepiece
Compatible Kowa products:
TSN-660/600/82SV/820/820M spotting scopes eyepieces 
TE-14WD, TE-21WD, TSE-21WE, TSE-14WE
Highlander 21x eyepiece, Highlander 32x eyepiece
TSN-AR 500
Compatible Kowa products:
TSN-500 spotting scopes
Compatible Kowa products: Genesis XD44
Compatible Kowa products: Genesis XD33
Compatible Kowa products: BD25

Compatability chart download

Will the Kowa TSN-IP7 digiscoping holder fit a different brand of spotting scope or binocular?

Measure the outer diameter of your scope or binocular eyepiece and compare with measurements in the chart above.

It is not possible to use the TSN-IP6 on fold down eyecups.
Please note: The above adapters are specifically designed to work with Kowa optics, therefore as well as physical dimensions, please also consider the eye-relief of your optical equipment. Adjustment of your eye-relief cap may be required.

Non Kowa optics confirmed compatibility
The following non Kowa products are confirmed as compatible with the Kowa TSN-IP7

Kowa Standard Spotting scope adapter ring (included)
Swarovski 20-60x zoom eyepiece
Swarovski 25-50xWide Zoom

Kowa Standard binocular adapter ring (included)
Leica Geovid 8x56
Leica Ultravid 10x50
Leica Ultravid HD 10x42
Leica Ultravid HD 8x42
Leica Trinovid 10x50 (old version)
Leica Trinovid 10x42 (new version)
Leica Trinovid 8x42 (new version)
Nikon Monarch 10x42
Nikon Monarch 10x36
Nikon HGL 10x42
Carson ED 10x42

Kowa Optional adapter rings 

Kowa Spotting scope adapter ring for TSN660/600/82SV “TSN-AR 66Z“
Swarovski 20x SW
Meopta 30-60x WA

Kowa binocular adapter ring for GENESIS 33 "TSN-AR 33GE”
Minox HG 10x43
Minox HG 8x43
Zeiss Conquest 10x42
Zeiss Conquest 8x42
Zeiss Conquest 10x32
Zeiss Conquest 8x32
Steiner Sky Hawk Pro 10x32
Steiner Sky Hawk Pro 8x32
Meopta MeoPro 6,5x32

Kowa binocular adapter ring for GENESIS 44 “TSN-AR 44GE”
Steiner Sky Hawk Pro 10x42
Steiner Sky Hawk Pro 8x42

More models are currently being tested and will be added accordingly.