Archived posting to the Leica Users Group, 2016/08/10

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Subject: [Leica] To Ted Grant - Distortion Correction Illustration
From: john at mcmaster.fr (John McMaster)
Date: Wed, 10 Aug 2016 17:43:57 +0000
References: <031d62da-e6db-40a0-354b-79f28f4abe08@lighttube.net> <000401d1f32e$83638e40$8a2aaac0$@ca>

Look at the larger image, there is a lot of distortion for a 50mm equivalent 
lens with lines near the centre of the frame....

john

-----Original Message-----

Hi Jim,
It's either my "eye?" or computer? I have clicked back & forth a number of 
times checking fence lines and other lines but I see no change difference?
One onto the other.
A wild possibility the thumb nails are the same image? Or something else?
cheers,
ted

-----Original Message-----
From: LUG [mailto:lug-bounces+tedgrant=shaw.ca at leica-users.org] On Behalf 
Of Jim Nichols
Sent: August-10-16 10:02 AM
To: LUG at Leica-Users.org
Subject: [Leica] To Ted Grant - Distortion Correction Illustration

Ted - I just noted that, if you select the Uncorrected Image (I will repeat 
the links below), and then click on the adjacent thumbnail, you can see the 
correction take place.  I had never looked at this before.  
Try it!

http://www.gallery.leica-users.org/v/OldNick/No+Distortion+Correction+Applie
d.tif.html

http://www.gallery.leica-users.org/v/OldNick/Corrected+Image.tif.html

--
Jim Nichols
Tullahoma, TN USA



In reply to: Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] To Ted Grant - Distortion Correction Illustration)
Message from tedgrant at shaw.ca (Ted Grant) ([Leica] To Ted Grant - Distortion Correction Illustration)