Library module Removing duplicates - HEIC vs JPEG and CR3 vs DNG

[stetondo]

Lightroom Version

LR Classic version 9.2

Operating System

2. macOS 10.15 Catalina

Hello I am a real newbie.
due to a number of mistakes I did over the years (of course, as I did not know this website and forum and basically I worked with a "trial and error" method), my Library is full of duplicates.
Basically:
- many pictures from my Canon camera, have CR3 version and DNG version. Cause is that when LR did not support CR3 I had to transform into DNG before importing. Later, when I could import CR3 directly from the camera, I got all duplicates.
- many pictures from my iPhone, have HEIC version and JPEG version. Reason is unknown to me.

Long story short , now I want to get rid of all these duplicates.
For doing this, my plan is to delete all JPEG (wherever there is a HEIC version) and all DNG (wherever there is a CR3 version).

Do you agree with the approach, or I am doing another mistake?

Thanks in advance for your thoughts

 

[Califdan]

That will work fine BUT if you have done any LR work on the DNG version that you did not also do on the CR3 those will go when you delete the DNG. This includes participation in collections, keywords, star ratings, pick flags, color labels, titles, captions and other metadata changes andany thing you did to the DNG in the develop module. If that's not a problem then your plan sounds like it should work.

Same for the HEIC vs JPG. I'm not a user of HEIC format, and someone more familiar with it should jump in here, but as I understand HEIC is a higher quality image than a JPG. So, if that info is verified you may want to keep the HEIC and ditch the JPG - but wait for confirmation as I'm sketchy on this and there may be other factors.

 

[clee01l]

Same for the HEIC vs JPG. I'm not a user of HEIC format, and someone more familiar with it should jump in here, but as I understand HEIC is a higher quality image than a JPG. So, if that info is verified you may want to keep the HEIC and ditch the JPG - but wait for confirmation as I'm sketchy on this and there may be other factors.

HEIC is higher quality and I believe lossless compression. Ditch any companion JPEGS. These can be derived from the HEIC.


Sent from my iPad using Tapatalk

 

[stetondo]

Thanks Califdan and Cletus for your answers!
I have proceeded that way.
Great support I have received!