Describe the problem, and perhaps we can help you sort it out here on the forum. ... View more

Moving your images to an external hard drive won't impact performance at all. Leave the catalog and other associated files on the C drive. Just move your library of images to the external drive, and everything will be just fine. I have my images distributed across three different external drives and LrC performs just fine. LrC simply needs to know where the images are located. All of the activity takes place in the catalog. As long as the external hard drive is connected so that LrC knows that the images are there, that is all that is necessary. If the occasion arises where you need to leave the external behind you can always create smart previews on the main hard drive to allow you to continue working while the external is disconnected. ... View more

I'm not sure why you would want to delete "previous import" files. Previous import simply take you to the folder of images that you last imported. It is a quick method to return to your most recent activity. After you import again, those images and their folder will begin showing up in the folder history in LrC.   If you delete "previous import" files then you are deleting images from your most recent import. Is that really what you intended to do? ... View more

Sorry, I have never used a Mac. But keep watching because there are plenty of Mac users who I'm sure will have suggestions for you. ... View more

Does the external hard drive have the same name that it had on the previous computer? If not, in the library module, can you find the option in the left-hand column, update folder location and use it to locate the folders on the external hard drive with its new name? ... View more

If you are getting JPEG images then you seemingly must be using the "save as" command in Photoshop because in the preferences in LrC the two options for external editing are PSD and TIF. Photoshop literally cannot save changes to your raw images. Surely you must understand that. Raw images are proprietary, and are read-only. If you send a  raw image from LrC to Photoshop and make adjustments and save that image then a new image has to be created. Why would you not want that image in your LrC library? ... View more

It's not clear to me what you mean when you indicate that this only started happening recently. I have been using Lightroom for many years, and whenever an image is sent from Lightroom to Photoshop the workflow has always returned a finished image (PSD or TIF) to Lightroom. It has been a round-trip work flow, always. If you don't want that then don't import the images into Lightroom in the first place. Simply open them in Bridge or Photoshop. If you are working on raw images, and choose to send the raw image to Photoshop, it will always be necessary for Photoshop to save an image in a different format. So it isn't clear to me anyway what it is you are attempting to accomplish. ... View more

I think what is happening is that Lightroom is transitioning from the JPEG preview to the preview that includes the adjustments applied by whatever gets applied on import. I ask again, have you created your own preset to apply on import. And, it is possible that your monitor is brightness is set too high. ... View more

Sounds like the problem is with your preset. Having exposure adjustment one of the parameters of the preset seems rather restrictive to me. But that is your choice. Good luck. ... View more

It's difficult to discuss theory without any examples. However, it seems to me that if the images are underexposed in the first place, the first thing to do would be to adjust the exposure and then apply the preset. Then it would be logical to make other adjustments as required to finish. But then, I'm only discussing theory. ... View more

I don't rely on previews for accuracy ever. I only rely on the main display in the Develop module. Others may have other opinions and have accurate results from other sources. But that is the only display that I rely on for accuracy on my computer. You decide what works best for you. ... View more

From my perspective, it appears that what Lightroom is doing is first showing the embedded preview until it is able to adjust for whatever you have done in Lightroom. Perhaps (notice "perhaps") your monitor brightness is set too high. Without seeing the entire Basic panel to see what adjustments have been made, it is difficult to evaluate what has been done. But the histograms for the images seem to be about right in my opinion. Have you taken the time to establish your own default settings? ... View more

Hard to say. I'm not a real technician. Beautiful image, by the way. If it were me, I would simply use a filter (the Select Sky option) and then increase the saturation and do whatever else was necessary to enhance the sky to get the effect and not worry about it. But then, that's me. ... View more

The 5DM4 Should be supported but with limitations on dual pixel raw files. The other two models will require you to use the freestanding DNG converter which is available from Adobe. That is a free download. That means you will have to convert the images to DNG first and then import those DNG files into Lightroom. ... View more

I personally don't know that you can disable the overlay color. However, that color will disappear as soon as you start to make adjustments on any of the masks. So it shouldn't be a distraction in my opinion. ... View more

Then apparently I don't understand your situation. If you want one slider that will move everything to specific settings as you indicated in your original post, why wouldn't ONE preset with those specific settings work for many images? If you are saying that there are different settings then that is something I did not understand. ... View more

1. Have the images been imported to Lightroom? 2. Have you chosen the option in Lightroom to edit in Photoshop? 3. Did the images transfer from Lightroom to Photoshop? 4. When you finished editing the images in Photoshop did you pick the option to save (NOT save as)? 5. What EXACT version of Lightroom are you using? ... View more

That model has been supported since Lightroom 5.7. It should be fully supported by even Lightroom 6.0. What exact version of Lightroom 6 are you using? ... View more

So, in your situation, if you often find yourself using those specific adjustments instead of Auto adjustments then perhaps you could create a preset using those adjustments and apply that preset. ... View more

The backup of a catalog will contain all of the editing record of what was done to those raw images. However, it will not contain the raw images. If you can associate that catalog with the raw images in the same folder they were previously contained in then it would be possible to export JPEG copies containing all of those edits. And, if that catalog is the catalog you are synchronizing with the cloud, you would be able to create collections and synchronize those images with the cloud.   Of course, this is assuming you are using Lightroom Classic. ... View more

Please disregard. I didn't think I had the option checked to enlarge the image. My mistake. ... View more

It is unclear to me what it is you are asking to do. However, I can't tell you that the catalog for Lightroom Classic cannot reside on a server. The catalog and the program need to reside on a local computer. The images can reside on a server. ... View more

From what I have observed, to have full GPU support you need to have a dedicated graphics card that meets the specifications. I know, that is a very broad and unclear statement. I had an old HP Pavilion desktop computer with integrated graphics. It took nearly 8 minutes to complete a super resolution cycle on that machine. I have since purchased a new computer with 16 GB RAM, still integrated graphics but upgraded, still  an HP Pavilion class computer. LrC indicates limited GPU support. Super resolution time is reduced to under one minute. But I'm on a limited budget and I'm not going to invest in the dedicated graphics card. Eight minutes reduced to less than one minute is good enough for me. I'm not going to stress over the time difference. Yes, I could get better performance if I was willing to pay for it. But I'm not. ... View more

There is no library module in Lightroom. There IS in Lightroom Classic. Are you referring to Lightroom Classic? This is the Lightroom forum. Please clarify which version (exact version number) you are referring to. ... View more

"Perhaps" it is how you are attempting to use the stacking option. I don't try to stack an entire folder of images. I use it to stack the images of the panorama, or multiple versions of the same image where I can choose which version I want on top of the stack. But your description of stacking "thousands" of files seems to be putting an undue burden on yourself and not using the feature in a way for which it was intended. This is only my observation, and you may not agree and that's okay. ... View more

I'm using Windows 11 and do not experience the phenomenon you are mentioning. However, there is one option in the export menu that can possibly create the "problem", and that is if you should choose the option to export as original. If you should choose that option then your changes will NOT be included in the exported image. I have no idea if that applies in your situation. ... View more