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Old Aug 17, 2005, 1:20 PM   #1
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I was interested to see that the FZ30 will have an f/2.8-f/3.7 variable aperture zoom, while the FZ20 is a constant f/2.8. At the same time, the long end of the FZ30 zoom range is actually shorter than the long end for the FZ20.

Does anyone know why this is? The difference is not likely to matter much in practical use, but constant aperture is a feature usually associated with the best zoom lenses. Is it safe to assume that the change reflects a decision to maximize design parameters besides aperture, or could it simply be a cost-cutting measure?
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Old Aug 17, 2005, 11:04 PM   #2
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I believe the re-design was necessary due to the larger 1/1.8 ccd - 8 megapixel sensor. Also the new FZ30 lens has 14 elements in 10 groups in comparison to 13 elements in 8 groups on the FZ20.
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