Take an image of graph paper, then you can SEE the influence of different settings.
George
I will give it a go with better light tomorrow with the 70-350. Trying the macro could be useful but it will not be adjustable in PL as distance reading are now done by the program But it might see if there is changing distortion away from infinity.
not when (A) DxO deals with raw files where it can read focusing distance from them AND (B) more than one set of corrections available ( for different focusing distances ) in DxO optics module for camera+lens combo AND (C) focusing distance read from a raw file was indeed close-distance-wise enough for DxO not to use 128 value
if you have a case to dispute A-B-C above please list camera model + lens model and ideally a raw file to test
raw files are available from dpreview… test them yourself
Look at the differences with “no correction” and “optical corrections only”.
George
You still didn’t tell me what DistortionFocus means. How can a reasonable person continue using something he doesn’t know what it means??
George
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@John7 ,
Here’s a website that shows what I mean. I think it is your lens. What you see is the uncorrected distortion.
It seems you’ve also something as auto-correction. I don’t know what that is.
What I’ve read there’s a danger to correct twice. No good idea.
George
No camera correction using RAW. Common problem with modern lenses that are very dependant in correction built into camera.But there are two things, focal length correction which is the main one in review and focus corrections. These are usually less of a problem than focal length but still need the right correction. As the elerments move to focus they effect the image which needs correcting
As I said I don’t know about that correction. It’s a lens review.
I don’t know what you mean with focal length and focus correction. They’re both hardware.
George
…it’s the tag name used in .dop sidecars for the distance setting in the focusing distance tool.
Checking my test files and respective sidecars, I can confirm that DistortionFocus is always at 128 in the sidecars and that, when I change the value in the .dop, that value shows up in the tool in DPL. The value is always set to 128, even if the distance setting in the RAW file indicates a value other than 128.
BUT: 128 is the default value, while the actual value set in DPL is listed in the .dop’s “Overrides” section, check “DistortionFocus” in the extract below:
Overrides = {
CropActive = true,
CropAuto = false,
CropRatio = -1,
DistortionActive = true,
DistortionFocus = 4.25,
},
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Does this look like PL is just using infinity for all focus corrections what ever the actusl distance is in the RAW file?
One might be tempted to think so. I suppose that DPL does read the value indeed, but does not necessarily document it in the .dop sidecar…unless the distance was changed manually.
So unless PL actually reads the data every time which would make most of the dop information pointless it does look like there is somthing a bit odd. If PL is said to actually make these corrections (and I know from using the manal adjustment there can be noticeable adjustments) it isnt when using automatic adjustment. It could be PL isnt reading focus distance but DxO say it is according to the manal and publicity which is contrary to what so many have been finding here. Its either a pitty that DxO have been ignoring this issue for so long or at worst avoiding saying what is happening.
John7 has a point… I just tested Canon R5 + RF 14-35/4 lens… DxO has a BUGGGGGG… I will post a new topic to illustrate how DxO failed the faithful yet again…
you are too kind to the quality of design over there … stay tuned for illustration
PL look for the focus distance and apply optical corrections depending on its value.
If you change the focus distance tag from the raw to lets say 100 meters, PL will apply a different correction then for the version with a distance of 0.4 meters.
You can also modify the distance to allow PL to offer an adjustment of the distance by the drop down menu or slider.
Optical Corrections are applied accordingly.
Most of the info in the .dop files makes sense, it’s just that we don’t really know yet, how DxO is managing distortion vs. distance. DxO could well use an internal convention that, if the distance can actually be read, DPL adjust distortions accordingly without further notifications. The first part (“Base”) of “Settings” in the .dop file is about the preset applied as default, only the “Overrides” section is about changes…made by the user.
I don’t see the 128 in PL and I don’t see anything changing in PL.
I see no indication that distortion focus is meant to be distance.
George
Usfull if it had a seconded set of informstion to change a first set. If this is it its an odd way of doing it, you creat one setting and a second one to correct the first why not just have the one giving the reading?