Workflow difference between RAW (digital negative) editing and jpg/tiff (photo) editing
Difference |
| Photoshop | Lightroom |
Working File | PSD file:
includes:
* original file
* editing layers | shared catalog:
includes:
* editing info for all library of photos (Catalog.lrcat)
* other info like library management (Catalog.lrcat)
* Preview of library (Preview.lrdata)
xmp file:
includes:
* editing info for its RAW file
(notes: catalog always have latest editing info, it need sync to update xmp file) |
Output file | jpg/tiff | jpg/tiff
xmp: raw develop info
DNG raw file: raw with develop info embedded or original raw |
* RAW file (like DNG) are not image file, it is a color data file with a small preview image embedded.
RAW file can be any bit, like 12-bit, 14-bit, 16-bit
jpg/tiff file are image file, it is exact what image data look like.
jpg is always 8-bit, tiff can be 8-bit, 16 bit
You can't shift and move around those original photo directories
just like a web page link to the image directory, Lightroom catalog is pointing to those original photo directories,
once you move, you break the linkage in lightroom catalog database, and you have to re-link them, if you shuttle sub directory and name change, the process can be more detective and by how smart lightroom is.
Backup Original and Editing info always with concern to the catalog file
if your catalog don't associate with multiple devices for its photos, then it is easy to leave the catalog on each device, and re-point the device to update a backup copy
if your catalog links to multiple device, then in order to use that backup, you need to update the device list in catalog again.
so you can't use backup copys in lightroom before let it update the directory locations
It is a risk to put “All the eggs” in one basket
Lightroom used to get slow when the catalog grow over certain size, but now you have no limit in catalog size performance
However, the best practice with catalog may be “Each Catalog per Project”, just like “Each PSD per Photo”
In contrast, you may need to find a balance for your workflow, since there is always How Many databases you need to Manage “Personal, Shortlist, Best, Clients, Current Shoot, Tmp Edit”; that makes a point to decide whether you use lightroom or manage yourself with standard file explorer; and whether you need Lightroom to assist you on photo management
also, in single catalog, if you run out of disk space as catalog grow, you can't add into the catalog anymore, and you can only continue to use lightroom if you change to a bigger disk.
so instead of many photo directories, you manage many photo catalogs
Your are forced to backup everything again and again if you use single catalog
not all photos are on the same level of importance, I may only like to backup certain photos not all every time
all your changes are in one file, you have to roll back all photo changes in catalog if only one change is corrupted.
No advantage clone retouch heal combination
No Layering and Compositing
Single User workflow, Catalog can only be changed by single user compared to normal folder structure
Reference:
Deal with multiple Cameras and multiple Photographers for single project
rating system
batch processing for large photo pool
multiple collections without duplicate folders