Peter, yes: A 0.35x Tele Rolleinar on the camera,
and a Rolleinar 1 on the Tele Rolleinar. I do not
remember the aperture I used with that photo but
it was probably wide-open, at f/4. At times I would
stop down as far as f/8. But my lighting required a
1/15 shutter at f/8 and I found that restrictive. I
find it easy to refocus continuously as I shoot, and
the faster shutter permits more spontaneity without
fear of losing an image to motion blur.
What sort of problems are you having? If you can
be more specific, and perhaps post an image or
two, I might be able to offer suggestions.