AndrewNYC
Established
I have large scans that are about 620MB. That is the file size before I import them to LR. Once imported, they are 410MB. I don't understand why they are smaller. I am not doing anything to the file other than renaming them and adding keywords. I am also backing up to an external drive at the same time, and those files remain large. Does lightroom have some sort of capability or setting that I am unknowingly applying? This does not happen with my Canon digital files.
AndrewNYC
Established
Actually, it's ALL files, up to 60% smaller....
haempe
Well-known
not enough details for a remote diagnosis.
some possible reasons may be: format change; compression settings; color space change and so on...
some possible reasons may be: format change; compression settings; color space change and so on...
AndrewNYC
Established
The importation dialogue box in LR only allows a handful of changes....
1. I'm importing a DNG or TIF and converting to DNG.
2. Standard Preview Rendering
3. Making a second copy to external drive.
4. Renaming the File
5. Development Settings "Non"
6. Destination is a new subfolder.
There don't appear to be any other settings....
Is there something about "Copy as DNG" when the file already is a DNG?
1. I'm importing a DNG or TIF and converting to DNG.
2. Standard Preview Rendering
3. Making a second copy to external drive.
4. Renaming the File
5. Development Settings "Non"
6. Destination is a new subfolder.
There don't appear to be any other settings....
Is there something about "Copy as DNG" when the file already is a DNG?
haempe
Well-known
Converting .tif to .dng gives serious smaller files. Not necessarily a quality loss.
There are somewhere in LR .dng compressions presettings. Sorry, I don't have LR at hand in the moment and can't remember where those settings are located...
There are somewhere in LR .dng compressions presettings. Sorry, I don't have LR at hand in the moment and can't remember where those settings are located...
willie_901
Veteran
There Is No Problem Here
There Is No Problem Here
You must have lossy impression selected for DNG compression. There is a lossless option if you wish to avoid any changes to the original tiffs.
If you keep the tiffs outside of LR or back them up to a different drive as they are imported, then you can enjoy the space savings and still have the unaltered data available.
There Is No Problem Here
You must have lossy impression selected for DNG compression. There is a lossless option if you wish to avoid any changes to the original tiffs.
If you keep the tiffs outside of LR or back them up to a different drive as they are imported, then you can enjoy the space savings and still have the unaltered data available.
AndrewNYC
Established
Follow up question...let's say you take a photo to photoshop in order to more work on it, things that cannot be handled well in Lightroom. And you save that work. Do you then have Lightroom recognize that photo? Do you change the naming convention? How to you track photos like this?
willie_901
Veteran
Tom's post covers everything.
You can convert the files imported into LR from PS or a plug-in to DNGs if you want. This saves space and keeps the editing information with the file independently of LR.
You can also tag photos processed in other apps and plug-ins. This is how you would keep track of them inside of LR. I just use custom file names to identify this sort of photo.
You can convert the files imported into LR from PS or a plug-in to DNGs if you want. This saves space and keeps the editing information with the file independently of LR.
You can also tag photos processed in other apps and plug-ins. This is how you would keep track of them inside of LR. I just use custom file names to identify this sort of photo.