If the CF card is inserted in the wrong way, it may damage the camera. As shown by the arrow, face the label side toward you and insert the end with the small holes into the camera.
The CF card eject button pops out.
3. Close the cover.
Close the cover and slide it in the direction shown by the arrow until it snaps shut.
When the <> switch is set to <ON> or <>, the shots remaining is displayed on the LCD panel.
The shots remaining depends on the remaining capacity of the CF card or the image recording quality setting, the ISO speed setting, etc.