Hi Lester have a look at these two links. I had a similar problem and ended up going this way.
http://www.iceinspace.com.au/forum/a...6&d=1150093255
http://www.iceinspace.com.au/forum/a...8&d=1150093255
From what I can remember, the distance from the reducer lens element to the imaging plane (chip surface) should be around 105mm.