Check out Ros's gallery. All the pics with DIY closeup are using these. I cannot remember what dioptre they are.
http://www.worldphotographyforum.com...00&ppuser=2754
The DIY bit is because these were from my Bronica days so they are a larger diameter than Ros's lens and I had to make an adaptor for them to fit. A lens hood is pretty much essential to cut down flare. For Ros I used the end of a flowerpot
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Don