I got it on August and it has saved me a lot of time in post-processing. It does automatic distortion correction specific to the camera/lens combo. Theoretically you should only have to do this once for each focal length /lens. Keep in mind the fact that individual lenses will probably deviate from their test lenses as well and may require a bit more or less tweaking.Īnother thought, a test target common to all your tested lenses might offer some advantage in speed when it comes to correction. Those data are for Photoshop, I am looking similar thing for CNX, since the units of correction are different. It corrects perfectly with -2.4.Ģ00 mm: Minor pincushion. It corrects perfectly with -3.0.ġ35 mm: Pincushion. It corrects perfectly with -3.0.ġ05 mm: Pincushion.
It corrects perfectly with -3.9.ĩ0 mm: Pincushion. It corrects perfectly with -3.8.ħ0 mm: Strong pincushion. It corrects perfectly with -3.5.ĥ0 mm: Strong pincushion. Mike, I am doing what you say, but is time-consuming and some times there are no parallel lines or something similar to make sure the correction made is OK.ģ5 mm: Strong pincushion. Of course different focal lengths of a Zoom lens may require a different amount of distortion and CA correction. then as the first step of an editing process you can run the apprpriate batch operation and automatically correct for distortions and CA for all the images with that lens and focal length. I think the thing to do there is carefully work up the amount of correction you want for each lens you own and save them as a batch process to be used with each lens. Though i suppose if something like that did exist one could fine tune the range for your lens and save it as a step for a batch process. If you are talking Pincushion or Barrel distortion they would vary from 1 lens to the next and any table would involve some adjustment within a range per individual lens anyhow. The only lens adjustments available in NX are part of the Base adjustments menu and include a Vignette adjustment and the fisheye adjustment that can only be used on the DX 10.5mm fisheye. It would be nice if we could use some data to correct more precisely, as a table or something like that, wich would relate focal distance and distortion. I have the Nikko r18-200 and I correct the distortion every time by a "visual approach". I wonder if is there any data, official or from users, on this.
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