Hi Don, I will go and have a look at that reference now, thank you and I will look forward to seeing your graphic.
John
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Originally Posted by Don Hoey
Hi John,
I guessed this one would get you going. 
A little bit of reading for you. http://micro.magnet.fsu.edu/primer/l...ctionhome.html
http://micro.magnet.fsu.edu/primer/j...icdiffraction/
This is something I knew nothing about a few weeks ago, but obviously it is something equipment reviewers are aware of. I have been through DPR camera reviews looking at the sample pics and noticed that all have been taken within that particular models diffraction limit.
I think here we may be seeing something of the differences between digital and film. Film grains having a radom spread where as digital sensor is a grid with micro lenses directing light into wells. I will do a graphic later of what I mean. Could well be wrong though.
Don |