Ethos
100° & 110° Apparent Field Eyepieces
10-mm
Model #ETH-10.0
Focal Length (mm)10
Barrel Size (in.)2" & 1¼"
Apparent Field (deg.)100
Eye Relief (mm)15
Weight (lb / oz)1.10 / 17.6
Field Stop (mm)17.7
Compare to similar focal lengths
“Fantastic accomplishment of optical engineering!”
—S.B., GA
image...
image...


The 10mm is parfocal with the 13mm ETHOS.

Its 59mm rubber grip diameter makes this model usable in binocular viewers — for most people.

Related Links
Cleaning