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News Sigma 20-200mm f3.5/6.3 DG

I'm not writing it off yet but I won't be surprised if it comes up a bit too short in terms of sharpness across the frame. From what I have seen so far it looks like it's most compromised at the wide end in the corners. I guess there is always the possibility that it would improve enough zoomed in slightly to be useable for landscape. I'm waiting for more representative shots before I decide to try one though.
 
Greytop said:
I'm not writing it off yet but I won't be surprised if it comes up a bit too short in terms of sharpness across the frame. From what I have seen so far it looks like it's most compromised at the wide end in the corners. I guess there is always the possibility that it would improve enough zoomed in slightly to be useable for landscape. I'm waiting for more representative shots before I decide to try one though.
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If it works as a decent 24-200 then I'd be happy.
 
I downloaded some of the example images from DPR's site. I think there's some cause for hope. But it needs some much better samples than these to properly establish its performance.
 
And this review by Gordon Laing (on an S1Rii) is also pretty positive:



He does his usual diagonal shooting of the Brighton seascape and even in the corners it performs pretty well.
 
pdk42 said:
And this review by Gordon Laing (on an S1Rii) is also pretty positive:



He does his usual diagonal shooting of the Brighton seascape and even in the corners it performs pretty well.
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Yes I agree but I would also like to examine the images that he posts on his website. It could be some while though because understandably he focusses on knocking out his comprehensive video reviews first.
 
Greytop said:
Yes I agree but I would also like to examine the images that he posts on his website. It could be some while though because understandably he focusses on knocking out his comprehensive video reviews first.
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Yes, I agree. There are very few sample images available at the moment. Guess we need to be patient.
 
Some interesting aperture comparisons at the end of the slide show
 
Greytop said:
Some interesting aperture comparisons at the end of the slide show
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Hard to really look very closely on a video, but those test crops at the end do look encouraging.
 
pdk42 said:
Hard to really look very closely on a video, but those test crops at the end do look encouraging.
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Agreed. From what I could make out, 20mm between f/5.6 and f/8 looks to be reasonable and 200mm between f/8 and f/11 also looks decent.
 
Eric l said:

Raws Sigma 20-200mm .zip

1 file sent via WeTransfer, the simplest way to send your files around the world
damienbernal.wetransfer.com damienbernal.wetransfer.com
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I hope you don't mind, if you do let me know & I'll delete them all, but I quickly ran a few through darktable with my normal settings, nothing fancy in the slightest, & this is what I got. The lens is definitely better at the longer focal lengths than 20mm that's for sure. It's not terrible @ 20mm, it's just better elsewhere. 200mm looks rather good to my eye. Click for full sized images. Slowed my little mini PC down they did :) I know why I like my 24MP camera :)

54799700294_cc95a799a6_b.jpg20250824-_DSC3715 by Markus Welder, on Flickr

54799700169_8115c332cb_b.jpg20250824-_DSC7471 by Markus Welder, on Flickr

54798610237_0239681920_b.jpg20250829-_DSC8553 by Markus Welder, on Flickr

54799466701_c1f8b6dba6_b.jpg20250830-_DSC1039 by Markus Welder, on Flickr

54799466971_edcf36fd12_b.jpg20250904-_DSC2618 by Markus Welder, on Flickr
 
Prosecutor said:
Some more samples on flickr:
www.flickr.com

Sigma 20-200 DG Contemporary

review: dariuszbres.pl/sigma-20-200-dg-contemporary/ foto: © Dariusz Breś / dariuszbres.pl
www.flickr.com www.flickr.com
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Nice find.
Quite a few good examples at 20mm f/8 in that album. They're pretty well defined from sharpness point of view in corners however some do look like they may have been cropped. Never the less some useful examples there.
 
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Greytop said:
Quite a few good examples at 20mm f/8 in that album. They're pretty well defined from sharpness point of view in corners however some do look like they may have been cropped.
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You can see the 20mm shots have been over-sharpened, lots of halo's and artifacts visible. Noticeably so compared to the other focal lengths.
 
Markuswelder said:
You can see the 20mm shots have been over-sharpened, lots of halo's and artifacts visible. Noticeably so compared to the other focal lengths.
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Well spotted, yes they do look a bit over sharpened. Still it's looking a pretty good lens given it's a x10 zoom.
 
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