FZ200 w/ TC-E17ED vs SX50 (1020mm vs 1200mm)

Started Oct 14, 2012 | Discussions thread
Stephen Barrett
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Re: FZ200 w/ TC-E17ED vs SX50 Calculated Resolutions
In reply to Stephen Barrett, Oct 15, 2012

My last statements are incorrect. I think better in terms of angular resolution:

  • For the SX50 @ F/6.5:      1,000,000 / (198 lp per mm x 215 mm ) = 23.5 microradians.
  • For the FZ200 w/ TC @ F/4: 1,000,000 / (256 lp per mm x 108 mm x 1.7) = 21.3 microradians.

So the 9% MTF angular resolution of the FZ200 w/ TC @ F/4 is only about 10% better than that of the SX50 @ F/6.5.

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