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Author Topic: Are you testing distortion correction...... algorithm?  (Read 1802 times)

Offline rusty0831

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Are you testing distortion correction...... algorithm?
« on: October 04, 2013, 04:50:24 pm »
<div id="linkdxomark">This a comment for <a href="http://www.dxomark.com/index.php/Lenses/Camera-Lens-Database/Carl-Zeiss/Zeiss-Carl-Zeiss-Planar-Touit-18-32-Sony-E">this page on the website</a></div>Hi,

   I believe you have made a mistake.

   0.6% distortion of Touit 32/1.8 is camera firmware corrected result.
You can refer to
http://www.lenstip.com/386.6-Lens_review-Carl_Zeiss_Touit_32_mm_f_1.8_Distortion.html

   Without distortion correction, the distortion is much higher (-1.8%)

  How can you compare lens performance without disabling these correction first?
When mounting on different mounts (e.g. X-Pro1), the measured value will be different due to different algorithm.

  I'm not to say Touit 32/1.8 is a bad lens.
I own one. Its image quality is really fantastic (great details, vibrant colors, typical Zeiss pop)!

Rusty
« Last Edit: October 04, 2013, 05:03:05 pm by rusty0831 »