Here’s my experience to date.
- Moved to Lightroom (LR) Dec ‘12.
- Ref. images live in organised folders (YYYY/ MM/ DD Event Name) on my iMacs internal 2TB drive.
- Aperture (A3) and LR Libraries/ Catalogs organised the same way (Folders/ Projects/ Albums in A3; Folders/ Folders/ Folders in LR).
- Was in the habit of splitting A3 Libraries into a library for each Year, since A3 got so sluggish with bigger Libraries (in my experience).
Kelby does not seem to think that’s necessary with LR.
- Imported my 2014 library (15k ref. photos - mostly RAW) into LR from Aperture before realising there was little value in doing so … I care less about ratings and keywords than I do about image edits … and as I understand it, no migration process from A3 to LR preserves those edits.
- So moved into LR knowing that for the moment, the way to look at any older images/ edits was through A3.
PHOTOS APP - the big library
- So as to have one only A3 library ready for the Photos app, I merged all A3 libraries into one big one through to Dec ‘14. This referenced 105k photos. The Library.aplibrary file was 121Gb. This took so long I had to leave it running overnight.
- Then upgraded my 2010 27” 8Gb i7 iMac to 10.10.3.
- Then launched Photos app against my whopper Library.aplibrary file. Again, this took so long I had to leave it running overnight … and it was still going when I got up.
- When this finished, I could use Photos app. It takes 2min to launch against this big library. The library structure seems to have been preserved in a parent folder called “iPhoto Events”. There’s a zillion other objects available in the sidebar in the Photos app - which seem to be a combination of smart albums, saved Light Tables and Photobooks.
- Seems the photobooks are lost …what’s converted is the set of photos used in the photobook, but not the photobook (layout, text) itself. Thus, if I wanted to order another copy of a previous book, I guess I’d have to go back to A3.
- Have not explored any editing functions yet.
- Not that I want to upload this massive library to iCloud, but I note that I cannot nominate this big Photos app library as my system one. It won’t let me.
PHOTOS APP - new
- I decided to create a brand new Photos app library for iCloud … the system version of my iPhone’s library. The big library above I can access with an option-click start of the Photos app.
- So - new photos to go to LR; those that remain on my iPhone and thus in iCloud can be viewed in the Photos app.
- I can continue to reference edited versions of old stuff via the Photos app, even if A3 ceases to be available.
- Will have to give some thought to old Photobooks before A3 goes away … at least to ensure I have a good PDF export of each.