Its definitely midges and not dust. Unless of course dust flies around and appears in different places on each shot and disappears when the sky is not in the picture. It only appears on skies when there are lots of swallows in the air too. I can see the midges in the air but have never seen them captured before. I don't think I've reached 1,000th of a second exposures with Velvia on a 645 Mamiya. As I said they would not be noticeable through the grain on film.
Bob
On Saturday, October 4, 2003, at 12:41 pm, Ian Goodrick wrote:
With the 1ds I have noticed some round dark splodges in the sky area. These are many pixels wide and extremely out of focus.
Sounds Like dust, on the low-pass filter.
Ian -- Ian Goodrick,
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