Who of you has the 45 degree prism? I´ve acquired one recently, but still prefer the waist level finder. I find it uncomfortable to view the image with only one eye. How about you?
I always attach it to the body, when viewing throught the waist level finder is impossible. Most of the time that's when my tripod is at its full length. I used to rotate the camera 45 degrees, so I could see the image at one side or the other, but the prism is better. Other than that I seldom use it.
Just as everything about the SL66 the prism is a useful extension to its versatility. Try a low level shot along a street using the lens tilt with camera on its side. The rotating prism is essential.