p.3 #1 · Sigma 20-200mm f3.5-6.3 C - Sample Images
j4nu wrote:
Sigma has been added to Camera Raw, but not Lightroom yet from what I see...
The Sigma 20-200 profile is now included with the most recent LR Classic update, as of yesterday (for me).
I tested it out for distortion and it's certainly better than the profile made available by Sigma. But at 20mm it's still not perfect. Based on straight-on architectural images, there is a slight but noticeable amount of barrel affecting the corners, but 90% of the image is very good, and any slight crops will eliminate it. The distortion at 20mm will be hard to notice in shots of buildings taken at an oblique angle. This is a non-issue for all other genres, including landscape, travel & street. By 24mm and higher the corner distortion is well corrected, not an issue at all for me.
p.3 #11 · Sigma 20-200mm f3.5-6.3 C - Sample Images
Twin Tree in Autumn at Milliken Park in November 2, 2025
Sigma 20-200mm F3.5-6.3 and Sony A7R3
2nd one taken by my wife using
Canon M50 and Canon EF-M 15-45mm F3.5-6.3 IS
p.3 #12 · Sigma 20-200mm f3.5-6.3 C - Sample Images
junglialoh wrote:
Twin Tree in Autumn at Milliken Park in November 2, 2025
Sigma 20-200mm F3.5-6.3 and Sony A7R3
2nd one taken by my wife using
Canon M50 and Canon EF-M 15-45mm F3.5-6.3 IS
Seems like some kind of artifacting going on in the bare tree branches behind/above that tortured looking tree on the right. In the first shot.
p.3 #16 · Sigma 20-200mm f3.5-6.3 C - Sample Images
Sorry I can't make that comparison, but can share some observation and examples. The short story is at 20mm, and with no software corrections, the distortion can be quite noticeable. Happily Lightroom Classic now has the lens profile available, and that does help quite a lot. Here's one without the lens profile:
And one using the lens profile in Lightroom Classic:
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Another example, this one a vertical. Without the lens profile:
p.3 #17 · Sigma 20-200mm f3.5-6.3 C - Sample Images
Here are a couple of images I took recently with the Sigma 20-200. These were both processed in Lightroom Classic using the new lens profile. I'm enjoying this lens so far.
p.3 #18 · Sigma 20-200mm f3.5-6.3 C - Sample Images
@mnscott The first photo looks like a 'fun house' with how the doors are distorted. The Lightroom Classic corrections did fantastic! I was under the impression corrections were only good enough for landscape and genres that relied less on straight lines. But these examples show it's quite usable for indoor too. Thank you for sharing the comparisons.
p.3 #19 · Sigma 20-200mm f3.5-6.3 C - Sample Images
I’m impressed and pleased with the results too. I did notice though that the images I posted lost a little sharpness on the forum. They look quite sharp otherwise. Maybe I’m missing a trick for posting images here.
