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#21
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Apparent Depth of field with Canon 20D
snip
" IAE, tho, I suspect it's the proper working of the human eye in play here....." -- John McWilliams That's an interesting idea, John, you may be on to something there. As you know each human eye is different, with a unique sweet spot of focus. Too far off and you need glasses or a dipodic correction to bring images into ideal focus. For example binoculars have a built-in adjustment for individual eye focus. Of course the human eye also has it's own focus mechanism that can physically squeeze the lens of the eye for ideal focus. Perhaps when looking through the viewfinder with abnormal vision the ideal focus was shifted off a little, resulting in a plane of focus that was different than perceived by the eye at the eyepiece... I can't say I have ever noticed this but it seems possible. Dave |
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