Here is the Papius referred to above for reference. [IMG]
I have spent more time looking and BSISM would appear to be the answer. I have been mis-reading my RIC. RIC VIII Siscia 225. Many thanks.
Very nice.
I must admit to being a bit of a cheapskate and didn't pay what I consider a very high price for this one. Regards, Martin
Yes. You trade Aperture size (the higher F numbers giving you more depth of field) for shutter speed (slower speeds as the aperture size...
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