Capture One - how do I stop the software from auto-cutting the corners of my photos?

Started 3 months ago | Discussions thread
ateriksen
ateriksen Forum Member • Posts: 51
Re: Capture One - how do I stop the software from auto-cutting the corners of my photos?
1

fujiian wrote:

TonyGN10 wrote:

chapada wrote:

How do I stop this from happening? It's not present at photos taken at 50mm for example.

That's C1 applying lens correction for that particular lens (ie correcting for distortion which usually occurs more at the corners/edges) - wider lens usually have more distortion and hence you lose more when it is corrected.

But if you want to remove the correction, just go to the Lens Correction tool tab and either press on the 3 dots and chose "Disable default lens correction" (C1 won't apply the lens correction on future images) or use the Distortion slider to reduce the amount of correction.

Peppering in that C1 doesn't always pick the correct number on that slider. It's pretty smart, and usually gets close, but you'll want to keep an eye on and occasionally tweak it.

I have to correct you on this one, if I'm not misunderstanding you. The slider represents percentages, so the 100% is the 100% of the full correction, and the slider is more often at 80% or higher depending on EXIF data of the image. See image and link below. There are no static number on the slider saying "debarrel and stretch 10% at 10 points" if you mean that. Capture One will read the lens profile from EXIF and apply the correction accordingly to that and focal length. There are some discrepancy between mm's on a superzoom, but I find it to be very accurate with either primes or zooms. But again, there's a reason for the slider too 😏

For example, my 16-55 (which suffers from a pretty heavy distortion on the wide and tele ends) is auto-corrected by this C1 slider. However, this automatic assignment starts at 100 on the wide end, plummets straight to zero for standard FLs, and then shoots up to 100 again at 50+mm.

This highly depends on the lens optical construction and how much distortion it has, that's not a default function of Capture One on all lenses.

This is consistent with the lens' natural distortion 'zones', but the 0-100 jump can over- or under-correct images taken with FLs on the boundaries between these 'zones'.

On mid-range zooms that cost some bucks more than a couple cappuccinos - there have probably been put less effort in to making gradual adjustments in the correction tab according to FLs, but I have seen on both my FE lenses (Sony) and my red badge Fuji lenses that the gradual correction is quite good. I wish Capture One explained this in details how they apply it, like if they only check wide and tele, or do in-between.

Aleksander

https://support.captureone.com/hc/en-us/articles/360002583378-Distortion-correction

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