Morning Everyone, This is not my book. A couple of years ago I was looking around for some information that was macro related and stumbled across this free downloadable PDF ebook on what appears to me to be pretty much everything Pentax Bellows, macro lenses, regular lenses, extension tubes. It walks through all the various bellows M42, K, M, A, 645 and 67, but the last third of the book has sets of tables for both enlargement and reduction factors (field of view) for K, 645 and 67 mount - 28, 35, 50, 85, 100, etc. lenses, reversing rings, extension tubes, and the additional parts manual to digital shutter releases, etc.
I just finally ran across a macro setup that I bought, and then remembered this book, and had a hard time finding it again on the web. It took me a while trying to find it again. So, for "safe keeping", I though that I would post it here - just in case others might be interested or find the information useful.
