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Svbony SV215 1.25" 3mm-8mm Planetary Zoom Eyepiece - W9166A
The apparent field of view and the usable eye relief to stay the same as the focal length changes.
Smooth zoom action with click-stops at 3, 4, 5, 6,7 and 8mm for quick changes to precise preset magnifications.
Par focal across the entire zoom range (minor tweaking may be necessary, however).
$28.67
Original: $81.91
-65%Svbony SV215 1.25" 3mm-8mm Planetary Zoom Eyepiece - W9166A—
$81.91
$28.67
Description
The apparent field of view and the usable eye relief to stay the same as the focal length changes.
Smooth zoom action with click-stops at 3, 4, 5, 6,7 and 8mm for quick changes to precise preset magnifications.
Par focal across the entire zoom range (minor tweaking may be necessary, however).
