What is the difference between the plastic mirror tube vs. the Glass mirror tube?
The Glass mirror provides a cylindrical panorama and has superior surface quality, +&- 50 vertical field of view, and a deeper depth of focus is required. Generally, a good lens system available in high end digital cameras and camcorders is required to accommodate the deeper depth of focus. The mirror uses step rings to attach to the camera. Glass Movie Example The Plastic mirror provides a cylindrical panorama and has an economical surface quality, +70 -20 vertical field of view (reversible ), Generally, a cheap lens system may be used because the depth of the mirror is minimized to approx one inch. A good camera may be used as well.
