While star diagonals correct a refractor’s inverted image, they don’t correct
the left-right orientation. For terrestrial viewing, choose an erecting prism to
achieve a natural view.
Note that due to the path length of this prism, it can’t be used with Barlows
or Powermate™ amplifiers. Not for use with Bino Vue due to weight limitations.
The 45° Erecting Prism works best at moderate magnifications.