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GM 14/1,8 launched
#12
(04-21-2021, 11:21 AM)Brightcolours Wrote:
(04-21-2021, 11:17 AM)thxbb12 Wrote:
(04-21-2021, 11:06 AM)Brightcolours Wrote: Exactly, those MTFs from Sony are a bit silly.
Wide open:
https://pliki.optyczne.pl/son14GM/son14_fot01.JPG
The borders are not that great (CA issues, astigmatism pulling things "apart", while you would not have guessed that looking at those OOTW MTFs.
No doubt a very good 14mm lens, but those MTFs are meaningless.

That photo from lenstip is not representative of border sharpness. It's clearly not focus in the right spot or there is some field curvature going on.

In comparison, look at these ones at f1.8, these are sharp: here

The border has objects over a large depth in the lenstip photo.... So where do you propose the focus in the border actually is?

And if field curvature is going on, that should be reflected in the Sony MTF too? The link you post does not work, but I see dpreview in the URL so my guess is that you link to post processed images, where the lenstip image is a plain conversion (as always) with no corrections and sharpening applied?
Another lenstip wide open sample, again with lesser borders than those MTFs would suggest.
https://pliki.optyczne.pl/son14GM/son14_fot13.JPG


Clearly, if in the photo you mention, the focus had been on the corners, they would be sharp enough.
The results you observe are related to where it was focused.

I'm still waiting for your explanation as to how the borders here (link) can be sharp (especially the bottom right).
You seem to conveniently ignore the photo I mention.
--Florent

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Messages In This Thread
GM 14/1,8 launched - by MatjazO - 04-20-2021, 06:06 PM
RE: GM 14/1,8 launched - by Rover - 04-20-2021, 07:39 PM
RE: GM 14/1,8 launched - by Klaus - 04-20-2021, 09:35 PM
RE: GM 14/1,8 launched - by faint - 04-21-2021, 05:03 AM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 07:37 AM
RE: GM 14/1,8 launched - by faint - 04-21-2021, 07:53 AM
RE: GM 14/1,8 launched - by Brightcolours - 04-21-2021, 11:06 AM
RE: GM 14/1,8 launched - by mst - 04-21-2021, 11:11 AM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 11:17 AM
RE: GM 14/1,8 launched - by Brightcolours - 04-21-2021, 11:21 AM
RE: GM 14/1,8 launched - by mst - 04-21-2021, 11:33 AM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 12:13 PM
RE: GM 14/1,8 launched - by davidmanze - 04-21-2021, 07:46 PM
RE: GM 14/1,8 launched - by Klaus - 04-21-2021, 12:35 PM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 12:56 PM
RE: GM 14/1,8 launched - by Brightcolours - 04-21-2021, 03:22 PM
RE: GM 14/1,8 launched - by mst - 04-21-2021, 03:35 PM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 03:42 PM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 03:44 PM
RE: GM 14/1,8 launched - by Brightcolours - 04-21-2021, 03:52 PM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 04:10 PM
RE: GM 14/1,8 launched - by borisbg - 04-21-2021, 03:44 PM
RE: GM 14/1,8 launched - by Brightcolours - 04-21-2021, 05:25 PM
RE: GM 14/1,8 launched - by thxbb12 - 04-21-2021, 06:43 PM
RE: GM 14/1,8 launched - by Klaus - 04-21-2021, 11:12 PM
RE: GM 14/1,8 launched - by Rover - 04-22-2021, 03:16 PM

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