I am selling a Used Davis Instruments Mark 25 Sextant
in good condition.
The Mark 25 is the top of the line Davis plastic sextant
. The Mark 25 features a "full horizon mirror".
A special coating is applied to high quality optical glass to allow the user to see through this mirror, yet still pick up images
as faint as low-light stars.
The Mark 25 is illuminated by a long-life LED and made of an upgraded plastic that is very stable.
Frame material: Reinforced plastic
magnification: 3 x 27mm
Filter shields: Seven large sunshades
range: 2/10 minute of arc
Drum calibration: 120 degree to -5 degree of arc
: LED illumination floods the arc and drum with soft light for night use
Case: Padded shock-resisting case