Hello,
This camera was discontinued many years ago. When it was introduced, it added a built in exposure meter to the SL66. I seriously doubt that anyone makes an adapter of any kind for it. It has no shift, only lens tilt. It is a great unit and I still my use lenses from this camera for astrophotography but replaced the camera with a 6008AF when parts became difficult to get and expensive. I have still an SL66SE in working order - a delight to hold and use and nothing has ever replaced it - a light, easy to use camera with lens tilt.
Neil Folberg