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06-25-2012, 03:08 PM   #1
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Pentax Q Distortion

Hello Pentax Q users out there. Recently I've bough an Pentax Q kit with Lens 01 & 02
I'm really impressed by the quality of the pictures. The only thing I don't like is the quite strong barrel distortion both lenses have.
Software wise I'm working with aperture (Mac). What programs are you using? Who could help me with my problem getting rid of the distortion?

06-25-2012, 04:12 PM   #2
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Welcome to the Q family. On a pc the supplied Silypix program will correct lens distortion as will newer Photoshop. Not sure on Apple products. Do you shoot jpeg or raw? If jpeg you can turn lens correction on in Q menu and I think the camera will correct it.
hope this helps
06-25-2012, 05:34 PM - 1 Like   #3
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I use Adobe Lightroom 3. The lens correction has the Q lenses in its database. Otherwise the in-camera adjustment works perfectly.
06-25-2012, 11:21 PM   #4

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I use the latest version of Adobe's Photoshop Lightroom: currently 4.1. The included lens correction profile for the Q's 01 prime works perfect for me. Activate it once on the first image of a series, then synch it across all the other images and distortions are never to be seen again.

In-camera works as well, though that implies you stick to JPG and don't take advantage of the Q's excellent RAW IQ.


06-26-2012, 03:27 PM   #5
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I am also using Aperture. I hope that Apple includes lens profiles in the next iteration of Aperture. If not I will switch (back) to Lightroom. Right now you either shoot JPEG or use a different raw converter that supports the Q lens distortion correction. You could also use a plug-in to fix the distortion in Aperture 3 but every time you use it it will create another TIFF file which fills up your drive. Apple needs to step up its raw converter as it is not up-to-date anymore in comparison to LR. You could use Silkypix but I do not like it as its interface is cumbersome at best.
06-26-2012, 03:36 PM   #6
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I use CS5 on a Mac, and there is a lens pre-set that works well on the barrel distortion that the Q lenses produce. Shooting in RAW+ produces a JPEG which removes much of it, but crops the image more than CS5 does. This may be a partial solution for you until Apple comes up with a pre-set for Aperture.

I gave up using Aperture in Version 1 because of Apple's insistence on doubling the size of your image space - I've never used iPhoto for the same reason. A pity, because otherwise their software is good and easy to use.

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