So you want to digitise a single field – but don’t want to digitise single field res?? I’m not following.
Some avids can digitise 2:1s – but i guess that’s not what you want?
You could digitise at 1:1 then drop motion effects on your clips to set them to duplicate field at 100% speed. You could also digitise through a Snell and Wilcox ARC100 with the film mode setup – that gives you frame based footage from interlaced footage. There is a 2 frame video signal delay to deal with here, but the results will be much, much better than a simple field strip – however you do it.
Paul