This excellent document put together by my friend, Geoff Goldberg, details a lot of useful information about the Hy6 / AFi camera system from both a historical and a users perspective. Inside you'll find information and practical tips about the cameras, digital backs, prism and finders, the range of lenses available, service, etc. At the end there is also a useful section covering how to calibrate the AF Offset for each lens to improve the focus confirmation accuracy. Thanks Geoff!
These documents are completely FREE and available to anyone who wishes. At the moment to receive the download link, you must put this item into your shopping basket and go through the check out process.