Final answer:
To adjust the eye elevation of a telescope camera's positioning, one modifies its elevation angle. This involves the angle the telescope is raised above the horizontal. Changing the placement of the eyepiece relative to the objective is also necessary to project a real image onto a screen.
Step-by-step explanation:
The question refers to adjusting the eye elevation of the camera, which suggests the movement and angle adjustment of a telescope or microscope camera. To adjust the eye elevation of a camera on a telescope, you typically alter the angle at which the device is positioned relative to the horizon. This can be accomplished by changing the tilt or the elevation angle (denoted by A), which is the angle the telescope is raised above the horizontal plane. When referring to a real image being projected onto a screen by a telescope or microscope, the placement of the eyepiece relative to the objective lens needs to be modified.
To achieve this, one might:
- Move the stage using stage adjustment knobs
- Adjust the condenser lens to focus the light
- Adjust the light intensity for proper illumination
- Modify the iris diaphragm to control the amount of light entering
- Change the distance between the ocular lenses for comfortable viewing
Elevation angle A can range from -90, which is the nadir or straight down, to +90 degrees, which is directly upward or at the zenith. The placement and adjustments allow for precise control over the projection and focus of the image being viewed through the microscope or telescope.