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Questions & Answers
Will this product (25xLER TE-17HD) fit the TSN-821M scope with an adapter TSN EC1A conversion ring? If not is a conversion ring available? Expert Answer

According to the manufacturer these Kowa Interchangeable Eyepieces for Kowa 66mm / 60mm / 82SV Spotting Scopes will not work with the TSN-821M. The manufacturer doesn't provide any information regarding a conversion ring that will allow these eyepieces to work with the TSN-821M. I recommend contacting the manufacturer to see if they will be compatible.

by Hunter, Gear Expert, March 2, 2022
Will this fit a my TSN-821M scope. Looking for more magnification than the 25X I have. Expert Answer

The manufacturer states that these Kowa Interchangeable Eyepieces are compatible with TSN 600 Kowa 60mm Spotting Scopes and the TSN 660 Kowa 66mm Spotting Scopes, and Kowa 82mm TSN 82SV Scopes and not with the 821 model. For the TSN-821M Spotting Scope it is recommend you use the Eyepiece listed below.
https://www.opticsplanet.com/kowa-interchangeable-eyepieces-for-82mm-spotting-scopes.html

by Hunter, Gear Expert, March 2, 2022
Customer Reviews
Helpful Positive Review
Kowa 20-60X Zoom Eyepiece by Legacy Reviewer, Verified Owner, February 20, 2012
I purchased the 20-60X eyepiece for the Kowa 82SV scope. Both the eyepiece and scope body are top-of-the-line and are highly recommended. I shoot .223/5.56mm in High Power matches and can see the small bullet holes at 200 yards all of the time and at...
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16/16 found this helpful
Helpful Positive Review
I purchased this Kowa set along with my Kowa 82SV spotting scope. The clarity is without equal by a long shot. The lack of appreciable chromatic aberration and distortion is nothing short of superb. Regardless of whether I am in high humidity at home...
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1/1 found this helpful
Helpful Positive Review
Zoom LER eyepiece the way to go by Legacy Reviewer, Verified Owner, July 25, 2007
Great versatile eyepiece; I can see .22 caliber holes at 200 meters on 60X no problem under most conditions. Eye relief is not that long at higher zooms, I still remove my glasses when using high magnification. Pros: 60X rocks! eye relief great a...
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4/4 found this helpful
Helpful Positive Review
Excellent eyepiece. by Eric, May 28, 2017
I own both the 20-60x and the 20x Long Eye Relief eyepieces. I use them for NRA and CMP competitive shooting. They're both outstanding! I recommend the Kowa 82SV and these eyepieces to all my friends at the gun club. I've owned two other spotting...
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1/1 found this helpful
Helpful Positive Review
Kowa TSE-9Z : Kowa 20-60x Zoom Eyepiece by Legacy Reviewer, Verified Owner, February 28, 2010
I purchased this eye piece along with the Kowa TS 663 spotting scope. I have owned a Leupold 25 X spotting scope for about 25 years. I recently took up long range Hi Power rifle shooting and needed an angled eyepiece, more magnification and clar...
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8/9 found this helpful
Helpful Positive Review
KW-WA-Eyepiece-TSE-Z9B by Rock, Verified Owner, May 18, 2008
I have an old Kowa TS601 with an old 20-60X eyepiece. Wanted to upgrade but could not currently afford new scope & eyepiece. Forum suggested getting the TSE-Z9B eyepiece as a compromise. Works great, like having a new scope and can use the eyepiec...
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1/1 found this helpful
Read All 14 Reviews
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Product Info for Kowa Interchangeable Eyepieces for Kowa 66mm / 60mm / 82SV Spotting Scopes

Kowa Eyepieces are made to mate seamlessly with Kowa Spotting Scopes. Compatible models include the TSN 600 Kowa 60mm Spotting Scopes and the TSN 660 Kowa 66mm Spotting Scopes, and Kowa 82mm TSN 82SV Scopes - any of these can be coupled with any of the several Kowa Interchangeable Eyepieces offered here, to meet your specific needs. There are single magnification models and zooms, and some have apparent viewing angles (real viewing angle multiplied by the magnification factor) of >60°.image

Kowa TSN-660 / TSN-600 Spotting Scopes Eyepieces:

  • TE-17HD: Kowa 25x LER Long Eye Relief Eyepiece
  • TE-14WD: Kowa 30x Wide Angle Eyepieces
  • TSE-9Z : Kowa 20-60x Zoom Eyepiece (shown)

Interchangeable Eyepieces for Kowa 66mm / 60mm High Performace Spotting Scopes can also be used with:

Note: does not fit older Kowa 821, 822, 823, 824 scopes.

Choose for your Kowa Spotting Scope one of the Kowa Interchangeable Eyepieces with a wide apparent field of view (greater than 60°) if you don't wear thick glasses and want to be "swimming in field". This will provide you with more real field for a given magnification than can ever be had from a zoom eyepiece, allowing easier subject tracking with the benefit of more observable detail thanks to the increase in magnification.

If you have to wear thick glasses, select a Kowa Spotting Scope Eyepiece with long eye relief. These have a profoundly-long distance between the rear element and the location which your pupil can be while still being able to observe the entire field of view. Naturally, this comes at the cost of less apparent field of view, but if you must wear glasses or sunglasses it is the most comfortable option for use.

Kowa TSE-Z9B 20-60x zoom for Kowa TSN-660 and TSN-600 (66 and 60mm) Spotting Scopes replaces Kowa TSE-Z4 eyepiece. Kowa Z9B Zoom Eyepiece has been completely redone and has nothing in common with its predecessor, it is a completely new eyepiece. Kowa TSE Z9B Spotting Scope Zoom Eyepiece has better specs, better clarity, has twist-up eyecups, and also incorporates the new zooming mechanism that is in Kowa TSE-Z7C Zoom Eyepiece.

Specifications for Kowa Interchangeable Eyepieces for Kowa 66mm / 60mm / 82SV Spotting Scopes:

Manufacturer: Kowa
Condition: New
Diameter: 66 mm, 60 mm
Country of Origin: Japan

Package Contents:

  • Kowa Interchangeable Eyepiece - for Kowa Spotting Scopes

Kowa Interchangeable Eyepieces for Kowa 66mm / 60mm / 82SV Spotting Scopes Orderable Models

List of Orderable Models

  • Kowa Interchangeable Eyepieces for Kowa 66mm / 60mm / 82SV Spotting Scopes - 20-60x Zoom Eyepiece , MPN: TE-9Z , UPC: 879110001036 , Code: KW-4S-Eyepiece-TE-9Z
  • Kowa Interchangeable Eyepieces for Kowa 66mm / 60mm / 82SV Spotting Scopes - 25x Long Eye Relief Eyepiece , MPN: TE-17HD , UPC: 879110001067 , Code: KW-4S-Eyepiece-TE-17HD
  • Kowa Interchangeable Eyepieces for Kowa 66mm / 60mm / 82SV Spotting Scopes - 30x Wide Angle Eyepiece , MPN: TE-14WD , UPC: 879110001050 , Code: KW-4S-Eyepiece-TE-14WD
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