TEX, Eyepiece, 1.25", 20mm, Ultra Wide, W Series, Skywatcher !

TXE20W

1 in stock (check front page for last update time)
Brand: Sky Watcher
Focal Length: 20mm
Apparent field of view: 66 deg.
Type: Ultra Wide
Eye Relief: 18mm
Fitting: Standard 1.25 Inch

The Focal Length of your Telescope will determine the Magnification & Field of View of the eyepiece, here are some common lengths as a guide:
500mm = 25x @ 2.64 deg.
600mm = 30x @ 2.2 deg.
700mm = 35x @ 1.89 deg.
800mm = 40x @ 1.65 deg.
900mm = 45x @ 1.47 deg.
1000mm = 50x @ 1.32 deg.
1200mm = 60x @ 1.1 deg.
1500mm = 75x @ 0.88 deg.
2000mm = 100x @ 0.66 deg.
2500mm = 125x @ 0.53 deg.



RRP$129


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