Dove prisms are used as image rotators. As the prism is rotated, the image
passing through will rotate at twice the angular rate of the prism.
- Dove prisms can be used with parallel or collimated light.
- Normally used in total-internal-reflection mode with the hypotenuse face
- The useful aperture can be doubled by aluminizing or silvering the
hypotenuse face of two identical prisms with their faces cemented together.
- Various coating options are available.
||+/-3 arc min