Marco RT-300 Refractor

The pre-owned Marco RT 300 refractor offers a sealed-in rear design
with a replaceable plano lens, providing durability and flexibility
for your optical needs.
Features Sealed in rear with replaceable plano lens.
Fully synchronized cross cylinders, or optional split- image cross cylinders.
Anti reflective coating on lenses.
Near tests.
Bi-loupe turret system.
Large, legible high contrast number scales.
Selection of auxiliary lenses.
Conveniently located knobs.
Manual refractor.

The RT-300’s accessory knob is positioned next to the cylinder power/axis knob
and all controls are within a hand’s breadth of each other.
Cylinder power up to +-6.00D; sphere power from +16.75 to -19.00D.
“Sure-grip” knurls on the control knobs make them easy to grasp.
Combined with the convenient placement of the controls themselves,
this helps reduce fatigue.
Fully synchronized cross-cylinder is standard.
Large high-contrast numbers on the instrument scales make them easy
to read even in subdued light.