Originally posted by homemade If I may, one more burning question. I have a number of lenses for the Ricoh XRP. I am aware of the guard and pin problem and how to remove the pin but would like to know what functions are available using these lenses. Example, can you set the aperture with the aperture ring or must you put the lens in "P" and set the aperture on the camera ect.
You can have automatic exposure by putting the camera in Av (Aperture priority) mode and using the aperture ring. The camera will meter and set your exposure length accordingly. Also, with the magic green button, in manual mode where you control exposure, and aperture, you can just hit it to get a base exposure value and work from there.
With the camera set to Av and lens set to P you'll have control over the aperture through the camera's rear dial. I find it very convenient as at smaller apertures using the aperture ring, the viewfinder (on any camera) can get pretty dark. The power switch also functions as a depth of field preview switch as well and will show you the light meter's reading when used so you can always get an idea of what the image will look like when the lens is stopped down.