Category: Ask Tim Grey

Today’s Question: I am using Lightroom [non-cloud version] with external hard disk. Due to a problem with my computer, Lightroom lost the connectivity with this external drive and I am not sure how to establish that connectivity again. Can you recommend a solution?

Tim’s Quick Answer: In this type of situation the solution is to make sure the external hard drive has the same drive letter (on Windows) or volume label (on Macintosh) as it did before your computer problem occurred.

More Detail: This is a question I have addressed previously in the Ask Tim Grey eNewsletter, but because it is a somewhat common question that actually has a relatively simple solution, I wanted to address it again.

With Lightroom your photos are stored separately from your catalog. The catalog references the photos by their storage location and filename. This is why it is critical to not rename files or folders outside of Lightroom. Put simply, when you’re using Lightroom to manage your photos, you want to initiate all image-management tasks from within Lightroom.

If you experience a problem with your computer or make changes to an external hard drive, it is possible that the drive will have a different identifier (drive letter or volume label) than Lightroom is expecting. This is an especially common issue on Windows, because changing the order in which you plug in external hard drives can cause those drives to be assigned different drive letters.

Macintosh users can essentially just rename the hard drive on their computer to match the name Lightroom is expecting. This name is the volume label, which is how the Macintosh operating system tracks your individual drives.

For Windows users you’ll need to set the drive letter for the external hard drive to match what Lightroom shows for that drive on the Folders list on the left panel in the Library module. You can get instructions for changing a drive letter for a hard drive on the Microsoft website here:

https://docs.microsoft.com/en-us/windows-server/storage/disk-management/change-a-drive-letter

Today’s Question: Suppose I use the Spot Removal tool in Lightroom Classic CC on a photo, then crop the photo so that the spot removal areas are no longer visible. If I then decide to sync the spot removals over a number of other photos, will the that work, or will it not work because the spot removals have been cropped out of view?

Tim’s Quick Answer: Yes, when you synchronize Spot Removal tool adjustments across multiple photos in Lightroom Classic CC, all cleanup spots from the source image will be reproduced even if those areas fall outside of a crop in one or more of the images.

More Detail: When you synchronize adjustments for multiple photos you have selected on the filmstrip while working in the Develop module, you can choose which adjustments to include as part of that synchronization. After selecting the images you want to synchronize, you’ll want to click on the thumbnail for the image you want to use as the basis of the synchronization.

Next, click the Sync button at the bottom of the right panel in the Develop module. This will bring up a dialog where you can choose which specific adjustments you want to include in the synchronization. For example, you might want to synchronize all available adjustments except for the crop, so that each image can be cropped individually.

If you include Spot Removal as one of the adjustment options to be synchronized, all cleanup spots from your source image will be duplicated in the images you are synchronizing. The specific results will be customized based on each image, but the source and destination areas will be duplicated across all selected photos.

Even if a cleanup spot appears outside the current crop for the source image or one or more of the destination images, all cleanup areas in the source image will be duplicated to all of the selected destinations images when you apply a synchronization that includes the Spot Removal option.

Today’s Question: Where in your workflow do you purge photos that you know you will delete eventually? I know some are throwaways immediately, but there are many more that are borderline and I think might be decent with some post-processing work.

Tim’s Quick Answer: My personal preference is to not delete photos too early in my workflow, just in case I later change my mind. Therefore, I will typically mark photos that I feel can be deleted (such as with a Reject flag in Lightroom Classic CC) and then only delete at a later date when I feel confident that the photos can definitely be deleted without consequence.

More Detail: I don’t actually tend to delete very many photos, in large part because I don’t want to take the risk of regretting that I’ve deleted a given photo. In addition, I generally don’t feel it is worth going back to review my photos in order to look for some that could be deleted, since storage is relatively cheap and I always have what I feel are more important tasks on my to-do list.

That said, there are most certainly photos that I know I don’t need to keep and would like to get rid of. In my case this is especially true for video clips, which tend to consume considerably more storage space than still photos.

When I see a photo (or video) that I feel can probably be deleted, I’ll initially mark it with a Reject flag in Lightroom. Later in my workflow, when I’ve had a chance to further review and apply adjustments to my favorite photos from a given trip, I will get to the point that I know the outtakes I’ve marked with a Reject flag can comfortably be deleted. I will then use the “Delete Rejected Photos” command from the Edit menu to eliminate the photos I had marked with a Reject flag.

My preference is to be as consistent as possible in my workflow. Therefore, I use this somewhat cautious approach even for photos that clearly can be deleted without consequence, such as an image that was accidentally captured with the lens cap still attached to the lens. I feel that being consistent with these types of workflow tasks can help avoid mistakes.

Today’s Question: My Canon 100-400mm lens lets me choose between 1.8m to infinity and 6.5m to infinity [for autofocus]. Would you explain the conditions under which you would select one or the other? Most people I know seem to leave it permanently on the 1.8m option.

Tim’s Quick Answer: These ranges relate to the distances the camera’s autofocus system will search when attempting to achieve focus. Selecting the narrower (and more distant) range can enable focus to be achieved more quickly, and can therefore be helpful as long as you don’t need to set the focus closer to your position than the selected range provides.

More Detail: When you establish focus for a scene, you are essentially setting the distance at which you can expect sharp focus for the lens. A given lens will have a close focus limit, representing the closest distance from the lens that focus can be achieved. In the example included in today’s question, the closest focus point for the lens is 1.8 meters (a little less than six feet). So, when you activate autofocus, the distance at which focus can be established could be anywhere between 1.8 meters and infinity.

Naturally, the greater the possible focus distance range the more time might be required to find the right point at which to focus. Many lenses therefore provide an option to restrict the autofocus to search across a shorter total distance. For the lens noted in today’s question, you can opt to limit the autofocus search so that the closest distance the lens will attempt to achieve focus is 6.5 meters (a little more than 21 feet).

If you know you won’t need to focus any closer than the starting point for the narrower range, you can select that range on the lens. In this example, by switching to the more distant range the lens won’t try to achieve focus for the range between 1.8 meters and 6.5 meters, even though the lens is capable of focusing within that range.

So, if you are confident you won’t need to focus closer that the more distant range will allow, you can select the more distant range to help ensure you’ll be able to establish focus as quickly as possible, all other things being equal. That is because you are restricting the range the lens will search for focus, so less time will be necessary to search the full range in order to establish focus.

Today’s Question: I have started cleaning out a lot of old slides and am keeping the ones I like the best. I kind of think I did very good work back in those days, meaning before I switched to digital in 2005. Was I more careful? Did I pay more attention to detail because the entire shooting experience was less automated? What are your thoughts on this?

Tim’s Quick Answer: I think most photographers would tend to be more selective in their photography when shooting with film. My feeling is that this resulted in a higher percentage of “good” photos compared to digital. Since many photographers tend to capture more photos with digital, the percentage of “good” shots might be lower, even if their best shots today are better than their best film photos earlier in their photography.

More Detail: I completely agree that photographers in general were more careful in the days of film. Even through film and processing weren’t terribly expensive all things considered, there was still a sense that you were paying extra for each frame. Adding to that was the notion that each roll of film typically had 36 exposures available, and so the faster you were shooting the more often you would need to replace a roll of film. Changing a roll of film didn’t require a tremendous amount of time, but if you needed to change rolls at an inopportune moment, you might miss a great photo opportunity.

With digital photography we have media cards that provide virtually unlimited photography at least in the context of a single scene or subject. We rarely really need to think about running out of storage space. We also don’t feel like we’re “wasting film” with digital photography. So there’s more of an attitude of “I might as well capture the photo” even if the scene isn’t all that inspiring. You can always delete the photo later, and you haven’t really given up very much by capturing an extra image.

For these reasons and others, I think photographers were more careful with film photography. Of course, we’re also taking photos with digital that we might have passed on with film, and some of those could have turned out to be great images. I also feel that digital provides better review and learning opportunities, especially in terms of instant feedback, compared to film.

On balance, I suspect most photographers have improved their skills and creativity over time, so they are probably taking better photos now than they did back in the days of film photography. However, since most photographers are also capturing far more photos now than they probably did with film, the percentage of “great” photos may be lower. That could mean that for many photographers their best photos now are better than their best photos with film, but that they’re also capturing a lot more outtakes now than they ever did with film.

Today’s Question: My preview file [in Lightroom Classic CC] has grown to a huge size because I use the full-size preview option for faster browsing. I am running out of space on my laptop and have in the past trashed the file and started from scratch. But it takes a long time to rebuild the previews. Is it possible to move the preview file to an external drive with larger capacity?

Tim’s Quick Answer: It is only possible to store the previews file on an external hard drive if you also move the Lightroom catalog file to an external hard drive, since the catalog and previews must be in the same location. Otherwise your only option is to discard 1:1 previews, or to delete the previews file and have Lightroom re-build previews as needed.

More Detail: Lightroom creates previews for your images so they can be browsed more quickly, and so you can view your images even if the source file is not currently available. The previews are stored in a file in the same location as the catalog file that contains all of the information about the photos you’re managing in Lightroom.

While the catalog file will be relatively small even when you are managing a large number of photos, the previews file can get quite large. For example, my previews file has grown to over 100 gigabytes for my catalog of about 400,000 photos. That means the previews file can consume a considerable amount of storage space on your hard drive.

If you delete the previews file you won’t actually lose any information, as Lightroom will simply build the previews again the next time you browse your photos. Of course, that means browsing will be a slower experience until all previews are generated. The previews file will be in the same folder as your Lightroom catalog, and will have the same base filename as the catalog but with “Previews” added to it. The filename extension is “lrdata” rather than the “lrcat” extension for the catalog file.

In the case of 1:1 previews, you can actually discard those without deleting the previews file. Start by navigating to the folder location you want to delete previews for (or the “All Photographs” collection in the Catalog section of the left panel in the Library module. You can select the specific photos you want to discard previews for, and then go to the menu and choose Library > Previews > Discard 1:1 Previews. The confirmation dialog will give you the option to discard previews for only the selected photos, or all photos in the current location. Standard previews cannot be discarded in this way, but of course 1:1 previews are generally larger and therefore have the potential to consume more storage space.

Today’s Question: In a recent answer you addressed recommended shutter speeds when shooting video on a DSLR. I didn’t quite understand what you meant about the video having a “stuttering appearance” when playing back. Can you provide an example of that?

Tim’s Quick Answer: When I refer to a “stuttering” appearance in video captures, I mean that there is a lack of fluid motion within the video. You can see an example of this effect in a video clip included in a post on the GreyLearning blog here:

http://greylearningblog.com/stuttering-video-with-fast-shutter-speed/

More Detail: When you use a fast shutter speed in video, fast motion gets frozen, and the sense of motion gets lost to some extent. An object moving quickly across the scene will appear to jump from one position to the next, rather than smoothly transitioning across the frame.

Of course, with a relatively slow shutter speed for video there will also be more motion blur in general, which is not necessarily a good thing, depending on your intent.

The bottom line is that the shutter speed you use when recording a video can have a significant impact on the overall look and feel of your video, so it is worth giving careful consideration to which shutter speed you’re using when establishing your overall exposure settings for video.

Today’s Question: Often, I use the Graduated Filter in Lightroom [Classic CC] to bring out some color and definition in the sky. I use a lot of brush strokes to erase the filter effects from the non-sky areas of the photo. Occasionally, after I have been working a while, I notice that I made an error erasing too much of the filter effects and have erased a bit of the sky instead. If you try to unerase this area, you get an patch that does not match the surrounding area because the Graduated Filter graduates the effect while the unerase applies the effect full-force. Is there any way to correct a mistake along the filtered area where you have accidentally erased part of the sky?

Tim’s Quick Answer: The best solution in this type of situation is to reduce the value for the Flow slider when working with the Brush feature in conjunction with the Graduated Filter or the Radial Filter in Lightroom. This will enable you to paint at a reduced opacity as you blend the adjustment back into an area of the photo. The only other solution would be to undo enough steps in History to get back to the point before the unintended erasing was done.

More Detail: When you make use of the Brush feature with the Graduated Filter or the Radial Filter in Lightroom’s Develop module, you are essentially creating two separate layer masks that work in conjunction with each other. One mask is in the form of a gradient (or ellipse), and the other is a free-form mask you can modify by painting.

Because of this behavior, it can be challenging to produce a good effect when you need to modify either mask. For example, if you attempt to move a gradient mask after you have already used the Brush feature to modify the targeted adjustment, the two masks will no longer align with each other in the same way. In addition, as noted in today’s question, if you use the Erase feature for the Brush option with the Graduated Filter (or Radial Filter), it can be difficult to get a good result when painting a portion of the adjustment back into the image.

For example, in a relatively low-opacity area of the gradient created with the Graduated Filter, if you paint with a full opacity to add back the adjustment effect you will have an obvious brush stroke that has a stronger adjustment than the surrounding gradient effect.

You can overcome this issue by using a low setting for the Flow slider when using the “A” or “B” brush option. You may need to use a very low value (around 10 or less) for areas of the gradient that are of particularly low opacity. You can then paint repeatedly over the same area to build up the effect.

Of course, getting a result that blends in well can still be a bit challenging. It can take some practice and careful effort to achieve a good result, but that is often preferable to going back far enough in History to start over from before making an adjustment you aren’t happy with.

Today’s Question: You had several comments regarding track logs and GPS. How much of a drain is there on the battery when using the GPS? I usually carry a phone with GPS apps which I can easily use to mark the spot where I took the image. I also find it not too difficult to recognize the images I have made and do not see a real point of getting coordinates for all of them. What am I missing?

Tim’s Quick Answer: In my experience using GPS location tracking with a device such as a camera or smartphone causes the battery to last about half as long as it otherwise would. I find location information tremendously helpful as a reminder and for locating photos, but that is in large part because most of my photography involves traveling relatively far from home. If you don’t find that location information helpful, there probably isn’t a good reason for you to deplete your battery faster by enabling GPS.

More Detail: The effect on battery life due to enabling GPS will depend on a variety of factors, including how frequently GPS location information is being recorded. I’ve found that my batteries last about half as long as they otherwise would based on my own usage, but your experience may vary.

Personally, I find GPS location information to be an invaluable part of the metadata for my photos. Having that information added automatically by my camera is very convenient, and provides location details for my photos even if I neglect to add location-based keywords.

I often use this information to remind myself of where I captured a particular photo. I also browse my photos using the map in Lightroom Classic CC, and often seeing a location pin on the map reminds me of a photo that might work well for a particular project.

That said, not every photographer will find this location information particularly helpful. A studio-based portrait photographer, for example, would probably not benefit from GPS metadata at all. If you don’t find that information helpful, there probably isn’t a great benefit to recording a track log or enabling GPS in your camera (if your camera is equipped with GPS).

As noted in today’s question, however, a “location snapshot” can provide a good compromise. When you want to know the specific location of a photo, you can use a smartphone (with GPS enabled) to capture a snapshot that will contain location metadata. You can then reference that information to recall where photos captured without the benefit of GPS were captured. This type of hybrid approach provides a good solution for photographers who only need location information periodically, rather than for most (or all) of their photos.

Today’s Question: Several weeks ago when I opened Photoshop, this message showed up: “Syncing your Creative Cloud files, please wait.” What does it mean? Do I just ignore it? Can I get rid of it?

Tim’s Quick Answer: This message refers to the synchronization of files saved in your “Creative Cloud Files” folder. You can disable synchronization if you prefer, or simply remove files from the Creative Cloud Files folder on your computer.

More Detail: Many photographers are familiar with the synchronization of photos that is available with Lightroom Classic CC or Lightroom CC. In addition, however, with an Adobe Creative Cloud plan (https://timgrey.me/creativecloud) you can synchronize other files to make them available from any Creative Cloud application, or directly from your computer.

The message mentioned in today’s question indicates that synchronization is taking place. You may have inadvertently saved a file to the synchronization folder, either within Photoshop or from another application.

If you want to disable synchronization for any reason, you can do so within the Creative Cloud application. Start by clicking on the icon for the Creative Cloud icon on the menu bar or task bar. Click the icon with three dots at the top-right of the application popup, and choose Preferences from the menu that appears.

On the Preferences page click the Creative Cloud tab at the top-center. Then choose Files from the menu below the Creative Cloud tab. To disable synchronization, turn off the Creative Cloud Sync checkbox. This will disable synchronization without deleting the local copies of your files.

If you’d like to review (and possibly delete) images that are being synchronized, you just need to browse the folder that is being used for files to be synchronized with Creative Cloud. From the home page of the Creative Cloud application choose Files, and then click the Open Folder button. This will bring up a folder in your operating system displaying the folder that Creative Cloud is using for file synchronization. You can delete files from this folder, or move them to another folder, based on your intent for the files saved in this location.