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News Sigma 20-200mm f3.5/6.3 DG

These are all looking decent!
 
I think I will put in a pre-order and give this lens a whirl. If it performs, it'll make a great two lens landscape combo with the 14-28.
 
I'm also of this opinion, a Swiss Army knife as they say here .We were expecting the first ones in stores at the end of September, but nothing yet...
 
Pete_W said:
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interesting. Seems it's a bit soft in the corners at focal lengths wider than about 50mm. But it looks inconsistent. Some of his examples (in the video) seemed OK, but others terrible. I've seen this sort of thing before with wide zooms which I've usually put down to IBIS effects. Of course, the IBIS is still active (just not compensating for movement) even if the camera is mounted on a tripod.

I guess I'm going to have to get my own copy and try it, but I'm downloading his example files now - all 10GB of it!
 
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xaviergut said:
Is it a good idea to evaluate the sharpness of a lens photographing tree branches and leaves that can be moved by the wind? Just asking...
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It looked a light wind day and shutter speeds were reasonable so I think it's probably OK (but not ideal!).
 
pdk42 said:
interesting. Seems it's a bit soft in the corners at focal lengths wider than about 50mm. But it looks inconsistent. Some of his examples (in the video) seemed OK, but others terrible. I've seen this sort of thing before with wide zooms which I've usually put down to IBIS effects. Of course, the IBIS is still doing its stuff even if the camera is mounted on a tripod.

I guess I'm going to have to get my own copy and try it, but I'm downloading his example files now - all 10GB of it!
Click to expand...

To my knowledge, IBIS should always be turned off if the camera is mounted on a tripod. That was certainly always the recommendation in my Pentax days.
 
Jonathan-Mac said:
To my knowledge, IBIS should always be turned off if the camera is mounted on a tripod. That was certainly always the recommendation in my Pentax days.
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Yes, but even when it's "off", it's still electro-magnetically suspended by the IBIS mechanism.
 
pdk42 said:
interesting. Seems it's a bit soft in the corners at focal lengths wider than about 50mm. But it looks inconsistent. Some of his examples (in the video) seemed OK, but others terrible. I've seen this sort of thing before with wide zooms which I've usually put down to IBIS effects. Of course, the IBIS is still active (just not compensating for movement) even if the camera is mounted on a tripod.

I guess I'm going to have to get my own copy and try it, but I'm downloading his example files now - all 10GB of it!
Click to expand...
Well, I've taken a good look at the samples. Unfortunately they are JPEGs not raws (so they'll have in-camera sharpening applied), but c'est la vie. Applying CA correction and fringing correction they are actually not bad at all, even at 20mm. At f8 or f11, the edges are acceptable with the corners just a little behind. I think it could work for me. As Mads says though, the edge performance from 50-200 is certainly better than at the wider end. But even at 20mm, the results are far better than anything I've seen on any of the three 28-200 Lumix lenses I tried.

Compared to the Tamron 28-200, it seems very close to me. In fact, I think the Sigma deals with flare better:

1759338093643.png

Based on these samples, I'l definitely be trying one out!
 
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xaviergut said:
Is it a good idea to evaluate the sharpness of a lens photographing tree branches and leaves that can be moved by the wind? Just asking...
Click to expand...
I would avoid doing tests on a windy day. Mads is trustworthy though so I assume he's ensured the conditions were suitable.
 
Impressive new ground for a super. I'm happy enough with the 20-60, so I'm saving my enthusiasm for the currently mythical 60-180 Samyang. z04 dance00

Not holding my breath, though; no rumour will make me do that again! Z04 Head Wall
 
I'm using the 20-60 a LOT as well. I'm pretty much always using tripod, ND filters and manual focus, so I don't mind slow non stabilized slow focusing lenses. I do hate changing lenses outside since and dust or dirt on my sensor will pretty much ruin a timelapse. Wish it was a bit wider and less long though (like 18-100), but that's likely much more difficult to make. Has anyone ever seen such lens?
 
But I guess 14-28 and 28-200 would be my perfect combo since I love very wide. Just hate changing lenses outside. Wish my S5 had one of those sensor shields like the more expensive newer Lumix cameras have.
 
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