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Kowa Eyepieces - For TSN 770 & 880 Series Scopes


Ace Home > Shop Home > Optics > Eyepieces > Kowa > Kowa Eyepieces - For TSN 770 & 880 Series Scopes
Kowa
Kowa eyepieces for TSN 770 scopes & 880 Scopes
Kowa Eyepieces - For TSN 770 & 880 Series Scopes
  • New mount design
  • Eyepiece converters allow the use of eyepieces from other spotting scope series
  • Eyepiece locking system


ViewLarge View   

New eyepieces for the new TSN 770 & TSN 880 series scopes, offering the same magnification on both scopes.

 

TSN 30x Wide Angle

  • New mount design
  • Lens design: 5 groups with 7 elements. Comfortable to look through with a 10% wider field of view than the TSN-820M Series
  • Waterproof and nitrogen purged to prevent the lens from fogging
  • Eyepiece converters allow the use of eyepieces from other spotting scope series
  • 20mm of long eye relief for ease of viewing
  • Eyepiece locking system
  • 4 clicks twist-up eyecup
  When Used On The...
TSN 770 TSN 880
Magnification 30x Wide
Real Field of View 2.4°
Apparent Field of View 72°
Exit Pupil Diameter 2.6mm 2.9mm
Relative Brightness 6.8 8.4
Twilight Factor 48.1 51.4
Eye-Relief 32.0mm
Field of View at 1000m/yds 36.7 m/yds

TSN 20x Long Eye Relief

  • New mount design
  • Lens design: 4 groups with 7 elements
  • Waterproof and nitrogen purged to prevent the lens from fogging
  • Eyepiece converters allow the use of eyepieces from other spotting scope series
  • 32mm of extra long eye relief for ease of viewing
  • Eyepiece locking system
  • Easy to remove rubber eyecap
  When Used On The...
TSN 770 TSN 880
Magnification 25x LER
Real Field of View 2.1°
Apparent Field of View 52.5°
Exit Pupil Diameter 3.1mm 3.5mm
Relative Brightness 9.6mm 12.3mm
Twilight Factor 43.9 46.9
Eye-Relief 32.0mm
Field of View at 1000m/yds 36.7 m/yds

TSN 20-60x Zoom

  • New mount design
  • Improved field of view at lower magnification
  • Aspheric lens design for a very flat field throughout the zoom range
  • 3 clicks twist-up eyecup
  • Waterproof and nitrogen purged to prevent the lens from fogging
  • Eyepiece converters allow the use of eyepieces from other spotting scope series
  • Long eye relief for ease of viewing
  • Eyepiece locking system
  • Lens design: 6 groups with 9 elements
  When Used On The...
TSN 770 TSN 880
Magnification 20x-60x, Zoom
Real Field of View 2.2° - 1.05°
Apparent Field of View 44° - 63°
Exit Pupil Diameter 3.9 - 1.3mm 4.4 - 1.5mm
Relative Brightness 15.2 - 1.7 19.4 - 2.3
Twilight Factor 39.2 - 68.0 42.0 - 72.7
Eye-Relief 17 - 16.5mm
Field of View at 1000m/yds 38.4 - 18.3 m/yds
 
Code No. Ace Price (£) 
Kowa TSN 30x Wide Eyepiece tsn30xw 259.00  Add to Basket
RRP: £285 - Our Price: £259
Kowa TSN 25x LER Eyepiece tsn25xler 239.00  Add to Basket
RRP: £259 - Our Price: £239
Kowa TSN 20-60x Eyepiece tsn2060x 439.00  Add to Basket
RRP: £489 - Our Price: £439

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