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Kowa American Corporation’s Limited Lifetime Warranty does not apply to products purchased from unauthorized resellers. see more »New products
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TSN-DA20 System S Digiscoping Adapter
A versatile System S digital camera adapter made to be compatible with...
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TSN-EX16S 1.6x Eyepiece Extender - System S
1.6x System S Extender for Historical and Classic Kowa Scopes
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Kowa Neoprene TSN-500 Cases
PRODUCT RELEASES JUNE 2018 This lightweight neoprene case has enough...
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TSN-554 55mm PROMINAR Pure Fluorite Spotting Scope
Utilizing Kowa's PROMINAR Fluorite Crystals lenses, the new compact Kowa...
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TSN-553 55mm PROMINAR Pure Fluorite Spotting Scope
Utilizing Kowa's PROMINAR Fluorite Crystals lenses, the new compact Kowa...
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TSN-502 50mm Standard Spotting Scope
The small scope with the big heritage. The TSN-500 series is so...
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TSN-501 50mm Standard Spotting Scope
The small scope with the big heritage. The TSN-500 series is so...
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TSN-IP7 iPhone 7/7s Adapter
Provided with 41mm and 55mm rings for BD42, BD32, SV Series, TE-11WZ and...
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TE-20H 25x Long Eye Relief Eyepiece
TE-20H
SKU: 0102
UPC: 879110001029
*Compatible with TSN-880 and TSN-770 Series
MSRP: $475.00
More info
Extra info
| Magnification | 25x LER (TSN-880/770) 28x LER (TP556) |
| Real Field of View | 2.1° (TSN-880/770) 1.9° (TP556) |
| Exit Pupil Diameter | 3.5mm (TSN-880) 3.1mm (TSN-770) 3.2mm (TP556) |
| Relative Brightness | 12.3 (TSN-880) 9.6 (TSN-770) 10.2 (TP556) |
| Twilight Factor | 46.9 (TSN-880) 43.9 (TSN-770) 49.2 (TP556) |
| Eye Relief | 32.0mm |
| Field of View at 1000m/yds | 36.7m/yds (TSN-880/770) 33m/yds (TP556) |
| Weight | 320g (11.2oz) |
| Length | 103mm (4.06in) |
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