

Data sheet
Although the Sight Tube was designed specifically for the Astra IIIB sextant, it also works perfectly on most other metal sextants with a standard telescope mounting slot.
The aiming tube is made of durable plastic and resistant to high temperatures.
The interior is blunt to reduce annoying reflections. The exterior is finished in a matte black to match the finish of most sextants.
The sliding rubber eyecup (item N°0505) suits him.