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Leon,
Nice lens, have you got any astrophoto's you can post made with the lens?
This is a quote from Pertti on the Digital Astro group who recently purchased and tested the 300 f4 IS:
"For the aligned and averaged image, 300mm at f4, I had a hard time
finding any other issues. In fact, the stars looked so beautifully
round and white blobs, that I begun suspecting an unknown issue in
the test arrangement itself! If this level of image quality holds,
this is definitely one of my best lenses for astrophotography, even
wide open. The stars look much better than those from the 200f2.8L
II and that says a lot."
Terry
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