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i am still waiting to hear back from dxo as far as the lens profiles built ito the lenses being applied 2x …i hope they give an answer as detailed as the aboveIt's impressive he went to such lengths to answer a query in such detail.
I’m trying to understand their marketing vs. reality.
Lens Softness:
DxO claims they know each lens the weaknesses and apply different sharpening across the frame Vs. ordinary unmasked sharpening. To me this is just fancy marketing. What’s your opinion on this?
It is also confusing their claims,
Soft, sharpening = 0
Standard = 1
= 2
= 3
Using soft, isn’t applying their magic lens soft treatment?!
interestingWhen using the soft option DxO is correcting the lens edge softening only so nothing is applied in the centre and the closer to the edges the more it is applied. DxO's alogrithms are based on the actual lens so the edge to edge sharpening is specific to the lens.
When attempting to sharpen a PureRaw DNG in ACR, The image looks horrible. No idea why.When using the soft option DxO is correcting the lens edge softening only so nothing is applied in the centre and the closer to the edges the more it is applied. DxO's alogrithms are based on the actual lens so the edge to edge sharpening is specific to the lens.
When attempting to sharpen a PureRaw DNG in ACR, The image looks horrible. No idea why.
We are discussing two separate things here.If one holds alt while clicking the radius slider in acr or lightroom, you see the edge sharpening dxo has already applied, when it looks garish I think this is mostly due to too strong of lens correction setting. In photolab the amount is on a slider, it sounds like pureraw is not.
We are discussing two separate things here.
1) Overal lens softness correction, fixing the optical flaws, and sharpening up the corners to match the center.
2) Adding enhanced sharpening to the overall image.
If we leave the slider at 0, is it doing 1 and NOT 2, while 1-3 will do 1 AND 2?
From DxO user guide:
- Lens softness*: Defaults to Standard (which is equivalent to the DxO PhotoLab Lens Sharpness setting, with the Global slider set at +1), you can also opt for Soft, Strong or Hard intensity (respectively 0, +2 and +3 in DxO PhotoLab). Optical sharpness improves image detail and overall image sharpness from the center to the edge of the frame.
*From version 4 (March 2024), DxO PureRAW uses refined, improved lens softness algorithms.
Where can I find DxO instructions that say not to apply an unsharp mask if lens softness correction is used?I'm just saying dxo is also sharpening when the lens correction is applied and you can visualize how much by holding alt on the radius slider. Dxo instructions say don't apply unsharp mask if lens softness correction is used. Acr sharpening is unsharp mask.
Where can I find DxO instructions that say not to apply an unsharp mask if lens softness correction is used?
What If I want lens correction WITHOUT DxO sharpening but want some extra clarity in the photo? Why shouldn't I be able to add an unsharp mask in post?
They admit that after their RAW treatment, any further unmasked sharpening will not play out nicely.This cut and paste is from the DXO Photolab 8 user guide. Pure Raw would have to be the same since it is the same software engine running both. I'm thinking the same concept applies to lightroom sharpening since it uses the unsharp mask algorithm, where is photoshop there are other sharpening choices that don't use unnsharp mask, such as some of the smart sharpen choices.
Lens Sharpness and Unsharp Mask
We recommend that you perform as much of your sharpening as possible using the DxO Lens Softness Compensation tool before using the Unsharp Mask. Of course, for images where the appropriate DxO Optics Module is not installed, you will have to use the Unsharp Mask for all manual sharpening tasks.
Using the Unsharp Mask
The Unsharp Mask correction is disabled by default. It is unnecessary for JPEG files, as in-camera processing has already sharpened them, and it is usually unnecessary for RAW images for which a DxO Module is available. This means its use is really confined to unsharpened JPEG files and RAW files without a DxO Optics Module. In the latter instance, we advise fine-tuning the Unsharp Mask settings, and then creating a preset.
We recommend that you try fine-tuning the three sliders using these starting values: Intensity = 100, Radius = 0.5, and Threshold = 4. For most images, Threshold should stay within a range from 4 to 10. Radius determines how subtle the correction is: excessive values will result in halos. Finally, you can set the Intensity slider up to 200.
They admit that after their RAW treatment, any further unmasked sharpening will not play out nicely.
This is unacceptable!
Sometimes extra local sharpening is needed, and even the default sharpening should be more customizable. Forcing to sharpen before any editing are nonsense.
DxO needs to elaborate more about this. Perhaps they don’t want to because it’s gonna hurt Sales.Recently I took several thousand images while traveling. Most of the images were taken in the rain and low light situations. I tried using Pure Raw for it's high ISO NR capabilities - and then proceeded to process the raw in ACR before going to PS. I found the images to be extremely sharp (while retaining a lot of fine details) and seldom required any output sharpening.
Not all images need PS. I have to be able to work in Bridge ACR or lightroom.For output I'm usually in photoshop. I'll use crtl shift alt E to stamp a duplicate of all the layers then convert to smart object so the sharpening is reversible. From their either smart sharpen or Topaz, using the opacity slider to fine tune it.
With Pure Raw, there is no way to adjust sharpening, it appears to be built into the NR algorithms. So I'm learning to be very light-handed with sharpening in ACR/LR.DxO needs to elaborate more about this. Perhaps they don’t want to because it’s gonna hurt Sales.