The Danubia 90 Degree Erecting Prism is great to use when star gazing for long periods, as it reverses the image for easier viewing. It is also angled for added comfort and easily fits onto the eyepiece..
The Danubia 90 Degree Erecting Prism is great to use when star gazing for long periods, as it reverses the image for easier viewing. It is also angled for added comfort and easily fits onto the eyepiece..