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Forums > Back > The future of lens testing?
frank
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#7
01-28-2014, 02:27 AM
Correction of distortions also affects the effective focal length (or angle of view, more precisely) by stretching and cropping the image. In the case e.g. Oly 12-40mm f2.8, is the 12mm the FL before or after the software correction of distortion?

 

I tend to belive it is the FL after the correction since the correction is done automatically but I want to check.

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Messages In This Thread
The future of lens testing? - by blende8 - 01-27-2014, 01:27 PM
The future of lens testing? - by Klaus - 01-27-2014, 03:19 PM
The future of lens testing? - by blende8 - 01-27-2014, 04:00 PM
The future of lens testing? - by stoppingdown - 01-27-2014, 04:04 PM
The future of lens testing? - by blende8 - 01-27-2014, 04:30 PM
The future of lens testing? - by thxbb12 - 01-27-2014, 11:17 PM
The future of lens testing? - by frank - 01-28-2014, 02:27 AM
The future of lens testing? - by JJ_SO - 01-28-2014, 06:42 AM
The future of lens testing? - by Brightcolours - 01-28-2014, 06:57 AM
The future of lens testing? - by frank - 01-28-2014, 09:17 AM
The future of lens testing? - by Brightcolours - 01-28-2014, 09:53 AM
The future of lens testing? - by davidmanze - 01-28-2014, 10:31 AM
The future of lens testing? - by Guest - 01-28-2014, 12:38 PM
The future of lens testing? - by frank - 01-28-2014, 01:45 PM
The future of lens testing? - by Guest - 01-28-2014, 03:43 PM
The future of lens testing? - by Klaus - 01-28-2014, 11:34 PM

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