Although I am not completely positive about exactly what technical details LR Classic looks for,  I do believe it looks for more than the file name. The LR catalog keeps a record that includes where the photo is located  (what drive, folder, etc) on your system and creates a link to metadata about the photo including camera, lens, ratings, keywords, and work you've done to process the image. If you are using DNG file format, all the details are encapsulated in one container. If you maintain your files in their original RAW file format, the metadata will be in an XMP file per photo that should be kept in the same folder and location as the original photo file. I helped a friend once who had imported the same groups of files from multiple external sources. I found that Lightroom had created duplicates and renamed them  - as per your example: DSC_001 and then DSC_001.1, and DSC_001.2 etc. I manually checked each folder to see what was duplicated and how and we ended up deleting all the ones with the duplicated name from the locations he no longer wanted, when all the images were combined onto one hard drive. My suggestion would be to test what you want to do - create a new folder and copy paste from both folders, with say only three photo files and their duplicates that you know are duplicates. (You could do the same thing by simply creating a folder, putting say three new images in there, and copy pasting those same images into another folder - i.e. creating a duplicate -  and doing the same thing without risking your real images). Write the 3 files names down first. Launch LR Classic and import those  folders with duplicated photos. Then do a search on your computer to see where each of those two files is located  and what happened as far as duplication or added file names. I believe that LR will prompt you or rename if a file is actually a duplicate image. And this link has a good video tutorial if you have not already found it: How Lightroom Classic CC catalogs work ... View more

No such button on my screen! ... View more

HI, Where are you looking for a "correct" button to click? As DJ-Paige said, the first time you start up with the Lightroom Classic, it will ask you if you want to upgrade your catalog and you should say yes. Your catalog will be renamed to whatever your old catalog name was with a 2 beside it. What may not have been clear in the other explanations: After installing LR Classic, click the new application to start it - do not double click your old catalog as that will launch the old version of LR. So when you start LR Classic, try holding the option (alt) key down. LR will open a window asking which catalog you want to open. Select your old catalog and then it will ask you if you want to upgrade your catalog. Hope that helps - however, I do recommend watching Colin Smith's short video. ... View more

HI, I was about to answer myself when I saw JimHess's last response. I have done this and it works. However, do not delete the catalog or the XMP files from the  folder where you changed them with Lightroom CC, until you are sure it works. I suggest you try it with one image first. open with LR CC, do a control-S to write changes to XMP file. Note the same of the photo file so you can more easily find that XMP manually in your folder of photos. Duplicate that XMP (on a Mac you could simply option click and drag to the new other folder) and move the copy of the XMP to the folder where your Classic photos are located. Then launch LR Classic and see if the changes are applied.  Whenever you are working within the finder and not through Lightroom, I recommend trying the task on one image only as a test just to see if you are doing what you want. When you think you have it correct, then you can go ahead and do the same with a group of images. ... View more

Not sure if I understand your question. However, does this link answer at least part of your problem? Email account validation failed in Adobe Lightroom ... View more

Technically, Lightroom is not supposed to work with a NAS device. And for the best speed and efficiency, it is best to keep the catalog on the main drive inside your computer. That being said, I do have a friend in France who has managed to use LR with a Synology device (NAS device) and will ask him how he did it (my guess is via an alias), as we have not experimented with that as of now. If I get an answer, I will add it here. ... View more

I agree with DJ_Paige. One of the best uses of LR is for keeping track of your photos and organizing them using LR. Lightroom is similar to using a lightbox with traditional negatives or slides, only you can view them all or by groups any way you want. As for organization, every person has a different style. I am a travel/nature photographer so I organize by region. Also because I travel certain places certain years I organize by date. Wedding photographers often organize by the couple's name, or shoot name. The beauty of LR is that you can organize the way you want. With that thought in mind, I agree with DJ_Paige and suggest you import using the ADD option leaving your photo files in their existing folders. However, I would suggest you plan out HOW you will organize your images before you import anything. In other words decide how you will group your images - by year, date, location, names, etc. I actually suggest drawing a diagram on paper! And if your image files are already grouped by folders with an organization, then be sure that your folders are named appropriately, the way you want them (or rename them before importing). Then you can ADD them keeping that organization. Unlike DJ_Paige I do keep my photo files organized by folders, grouping them as I said by year and location, such as 2016_Paris, or 201609Paris (for sept 2016 in Paris). So the folders have names that are logical to me. You can also choose to rename the photo files as you import them, so for example, I would have a photo file named 201609_Paris_81945.dng (or CR2) Note: I usually import and change to DNG during the import but that is not necessary as you can change all the photo files at any time to dng or not at all, depending what you want. And yes, if possible do add keywords to your images - however you can do this anytime. If you have a group of images with pine trees together in a folder, do bring them in all at once and add the keyword "pine trees" during import. You can add more and more specific keywords later when reviewing them.  For example you can select all the ones with pine trees and houses, and add the keyword "houses," and all the ones with pine trees and sea shore, and add the keyword "seashore" after they are all imported and you are reviewing them.Keywords do make finding images easier. So you could then just search all your images later for those with pine trees and houses, and only those would appear. The metadata such as date and time of capture and if you had gps coordinates in an image, those will be automatically imported with the file. As for you last question, Lightroom cannot show you a preview if your file is not imported into the catalog. So if you see the preview the file has been imported. LR creates previews (whatever size preview you decide in the preferences) as you import the photo files. When you choose to import using the ADD option, the photo files do not move from their current location. The information (data) about the photo file is "imported" into LR and creates a preview for you (or a smart preview if you choose that option.) If you choose the Move, Copy, or Copy as DNG options when you import, you also have to designate a location for LR to physically move the photo files to when it imports the the information about the photo (the data) into the catalog. Hope that helps clarify even more what DJ_Paige had said! ... View more

Whatever you decide to do, be sure to make  backups of (preferably on a separate external disk) 1. all  your image files 2. your Lightroom Catalog folder including the Lightroom Catalog.lrcat and the Lightroom catalog Previews.lrdata, and the lightroom Settings folder , particularly if you have made your own watermarks and have presets. In case you change your mind after working with LR 6. That is the insurance policy! Note: If you’re going back to Lightroom 6 perpetual, and you’d done a lot of work in Lightroom Classic , know that Lightroom 6 won’t open the Classic catalog format, so you’ll need to write the changes out to the files (XMP) and read them back into your Lightroom 6 catalog. The exact instructions will depend on each scenario. You might check the blog on  LightroomQueen.com and also LauraShoe.com. https://0-helpx-adobe-com.midhudsonlibraries.org/creative-cloud/help/download-install-single-app-Lightroom-6.html ... View more

Jim Hess is absolutely correct. So you now simply need to copy your entire Lightroom folder, which is by default in the Pictures folder on a Mac, to the Pictures folder on your EHD. Just be sure that all the files inside the Lightroom folder are copied to the EHD. Those files would include: the Lightroom Catalog.lrcat The Lightroom Catalog Previews.lrdata and if you had made them, you would also have a file called Lightroom Catalog Smart Previews.lrdata and if you had previously set your preferences in Lightroom to keep the settings with the catalog, then a Lightroom Settings folder will be there also. ... View more

With the Photography Plan, you get both Lightroom CC (for mobile stuff) AND Lightroom Classic CC plus Photoshop CC. Definitely the best plan ... View more

Basically you need to think of Lightroom as a hub that directs traffic. Don't move photos manually to your desktop or anywhere else. Keep you image files like DJ_Paige said - in their "resting place" i.e. one location where they stay. Then use LR to call an image up, do your editing in Develop module, etc. If you want to send an image as a jpg, use the export feature in LR. Your original image does not move at all. LR exports a jpg with all the editing data you have applied and sends that one to your desktop, to email, to any folder you designate. Hope that helps. ... View more

Lightroom Classic IS the application you want to use unless you want to store your images in the cloud - although most pro photographers have way too many images and can't waste the time it takes to upload. Lightroom CC is more like the old Lightroom Mobile part of the traditional Lightroom application. We use Lightroom Classic and every image is stored on external drives, just like before. And of course we make back ups of those external drives just incase. Lightroom Classic has only gotten better. Although the application naming convention is deceptive I agree. ... View more

Yes - those are cheat sheets to help with keyboard shortcuts. The only step by step was Kelby's book on Lightroom where he went through 7 or so steps on each type of image. I agree with dj_Paige - try going from top to bottom on the right side panel in the develop module. You may go back to some settings as you go - there is no absolute rule or right way to edit. The only suggested "rule" is to view your image at 100% when you apply sharpening. ... View more

A wonderful photographer, Josh Holko, has a blog to which I subscribe. He put a cheat sheet on his blog so here is a link. By the way, Josh is also a photo educator and a great photo trip leader...! http://blog.jholko.com/ ... View more

I am on a Mac and in general, I also export to a new folder on my desktop and then burn the disc using the disc tools or an application such as Roxio Toast. ... View more

Then you do need Lightroom Classic CC. Then you can import your photos from the Android  as you would any source,  edit them and store them where you want. So which "Plan" do you have? If you have the "Photography Plan" then you should just use Lightroom Classic CC. If you have the Lightroom CC plan, then you need to change plans (no price difference anyhow). The only advantage of the Lightroom CC plan is the 1 TB of cloud storage which you do not want!!! Adobe Creative Cloud Photography plan | Professional photo editing software ... View more

Just in case, Before you do anything, I highly suggest you make a copy (manually) of your catalog named: (yourcatalogname).lrcat And your Previews  named: (yourcatalogname).lrdata Place these copies so you will know where they are or on a separate drive. When you update, and then open your catalog, Lightroom might say it needs to upgrade the catalog to the newer version. And normally things go well....however you would have a copy of both the ".lrcat" and ".lrdata" files as back ups just in case. ... View more

Can someone translate this question into English? ... View more

@dj...Paige has the correct answer... ... View more

I was about to respond when I aw @wobertc's message. Did this work for you? ... View more

I just tested the link and download on a computer I reserve for testing and it worked... ... View more

And it was the upgrade link that is difficult to find. ... View more

I believe rangie needs to UPGRADE not purchase v6. Kentdesign ... View more

HI again, I understand your situation. The upgrade path to LR 6 is there but difficult to find. The best information I have found is from one of two excellent sources: Laura Shoe, Lightroom and Photoshop Tutorials, Tips and Training by Laura Shoe, and the other is from Victoria Brampton https://www.lightroomqueen.com/ , Both of these educators run websites for training and they are excellent resources for keeping up to date and finding the links you might need. It is worth subscribing to their blogs or newsletters. Hope this helps. ... View more

True it is possible that the O key had been previously set to some other function . Still, I was not saying the upgrading would solve this problem. Just commenting that there are many more new features in 6 and CC Classic and because I am using those, I cannot really diagnose why you cannot see the overlay. ... View more

If you see the Peg for the adjustment, try just putting the cursor over the peg. In the newer applications, I know the affected area appears with a red overlay. There should also be a tool bar below the image window. In there there should be a checkbox to show selected overlay mask. Click in the check box and the overlay mask appears in red. Also at least on the newer apps, there is a  drop down menu that says : Show edit pins. And you can select, Auto, Always, Selected, or Never. If you do have that menu on your version or LR, it is possible that it is set to Never??? that would explain the noise and lack of showing the overlay. I sincerely hope that helps! I know many people do not like subscribing however  the Photography bundle at $10 a month has really been worth it for me to be able to get all the latest improvements in LR and PS.  AT the end of the year, I am not paying any more than I was when I was purchasing the two pieces of software the old way and upgrading them each 12 to 18 months. I wrote the book for Lightroom Version 2, and I cannot imagine working with that rudimentary version today in light of all the improvements. If you really do not want a subscription, you might consider getting the last "perpetual" version of LR, version 6. You will have to hunt on Adobe's website to see how to pay for an upgrade, however v6 really is good. ... View more

To Sonia P, you need to open the folder and select all the images as Jim said. Yes, Jim, on a Mac it is Command A to select all!!! Jim's posts are always great! ... View more

I just tried using the embedded and sidecar option which I do not usually use, and it seems fine. I have a Macbook pro  2013 with 16 gb of ram. I am running on an SSD drive. ... View more

(sorry my versions are newer however the keystroke should be the same) Hello, On LR 6 and newer, the keystroke to hide and show the O so you can rollover it with the mouse to see the area affect is " H" Try it and let us know if that works ... View more