P: Poor photo in the library and develop module - smart previews

BrianKimball

The preview is the same in the library, develop module and after export.

andrew_rodney

How did you do that? how do I open a photo in ACR? Can you make a video of what you did?

...from original photo https://mab.to/btQbYpCvr

And that's slightly different than the first. 

After import, POOR appearing preview in Develop. Zoom in, it disappears. It matches Library. Just like the other DNG from the other forum post from Windows. If I quit LR, start up in Develop, I see the 'poor' preview for a split second, then it disappears. 

IF I open the DNG in ACR 13, zoom in, I never see the poor preview, it updates correctly. DO try that too and report back. 

For me the bigger concern wasn't the preview quality while viewing the photo in Lightroom, but rather the fact that an exported image was of lower quality in 10.0 vs 9.4's export.

Fotimelasku, is that still the case?

...from original photo https://mab.to/btQbYpCvr

I downloaded the https://mab.to/oF4PB4xgJ DNG file exported with the original photo not connected and the Library and Develop previews look identical. Please export to DNG file format with the original photo connected and your settings applied and upload for sharing. This will allow us to create a Smart Preview from the original photo, which may exhibit the issue.

I did DNG using the original photo. you can try

https://mab.to/btQbYpCvr

Here is DNG file https://mab.to/oF4PB4xgJ

When I download and import into LR10, on Mac OS (Catalina), the preview I see in Develop matches nearly identically, the preview I see in Library at both Fit and Zoom. I do not see the noise/ugly preview reported. 

This is a bit different from the other forum post where the OP's DNG did show an issue that disappeared after zooming in and never returned. 

Something is going on with some users. Seems different on Windows than Mac in that the odd previews show than disappear at least on one Windows users machine but not on yours from Mac. 

We need more people with differing OSs and hardware to download your DNG (and the other Windows DNG) and report what they are seeing in terms of the preview. These are the kinds of data we need for Adobe:

1. Do you see the odd preview, yes or no on your own system? 

2. Do  you see the odd preview on the downloaded DNGs?

3. If you do does it disappear after a 1:1 zoom?

4. Does it reappear or disappear from this point on?

5. What OS, what GPU? 

6. What camera, what DCP profile assigned, what PV version? 

7. If you have an older version of LR, does this issue appear and what version of LR are you using? 

There are probably a lot more questions that need to be asked or answered. This is an isolated issue, but what's the cause???

Edit: IMPORTANT question: Does this only occur IF you apply Noise/Grain in Develop? 

Here is DNG file https://mab.to/oF4PB4xgJ

But... when i use my HDD external drive with original photos, this previews after zoom is better. But it is necessary to zoom in...

This is not my favourite workflow.

I normally work like this: I have a disconnected HDD with photos. After zooming in, LR works as in the video (photo does not improve after zooming in)

Zooming without original photos (just smart previews)

https://mab.to/6rYuJOnzs

Zooming with original photos....

here you see the difference Before and after. 00:01 is worse. 00:04 has already loaded a higher quality photo (thanks to the attached disk with original photos)

https://mab.to/ynz8vbiBA

I watched your video, this is exactly what I saw with the other OP's DNG, MacOS, LR10. But after zooming in, the 'poor' preview never came back. Is that what you see too? IOW, after you zoom in and the preview is reconstructed, does it stay that way? Again, on this end, it disappears and never reappears. 

In terms of ACR, I wasn't talking about resetting it unless you mean cleaning out the ACR cache which was recommended but didn't work for my OP in the other post. What I was wondering is if you open such a raw for the first time in ACR, do you see that poor preview at any time? I never did with the DNG sent. And it would be useful for you too to supply a DNG with all the edits, profile etc embedded in it, exported from LR, that way it's easier to download and test. You might consider doing an update metadata and preview command before exporting. 

I reset the ACR. I deleted smart previews and recreated them. Nothing helped.

Once, the photo in the library was high quality (Without a disk attached to the original photo). In the develop module it was again of poor quality.

Now I always and everywhere have it of poor quality.

When I connect the disc, everything is the same. When you zoom in on a photo, a higher quality version will load. Like here:

https://www.youtube.com/watch?v=NlQr8L6-qSU&feature=youtu.be