Frank,
I do understand that I need to hit the shutter a second time. It simply doesn't do anything the second time though. Not to worry. I don't understand about future lenses not rendering out of focus nicely? I'm looking to get my subject nicely in focus and throw the rest out. Here's an example http://www.gregmiller.com/photo/italy/21_2003-795.jpg
Mind you it wouldn't worry me about modern lenses. I've just bought a camera thats about 50 years old. I'm sure the older lenses will be around for years to come.
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