Hello - New to this forum. I used to take a few pictures with slides and I maybe understood what ISO meant (the amount of chemical on the film that provided more or less light to be captured and hence more or less detail). I cannot figure out what ISO does in Digital Cameras. This image of two Norther Mockingbirds Squabbling was taken at F4 - 1/2000 - ISO 100. Where is the sweet spot for ISO or is that all a matter of personal choice? I understand a little about speed and ISO but what does ISO really do? Thanks for any information or comments you can provide.

This update was a major one...very different from the routine updates. Library formats changed, and other significant changes were made. I think there is some sort of not-so-subtle clue on the initialize screen of LightRoom Classic, where that name is now clearly displayed as a subtitle under the words "Adobe PhotoShop." It is also very clear that major changes were made internal to the program. My perception is that backward compatibility with older versions is limited or maybe even non-existent.

I personally am expecting more movement along this path in the future. My specific prediction is that LightRoom will disappear into PhotoShop before too much longer.

I also am beginning to think about moving my Adobe Suite off of the laptop where it has resided for several years onto a desktop where I can better manage the increasing resources that it needs. After my last rounds of camera updates and skill building, I'm finding that fewer and fewer of my images require much in the way of advanced post processing. It may be that NX-D can handle anything that might need to be done in the field, with those other few images just waiting until I get home for final adjustments.

And by the way...schools in my neck of the woods are moving away from Adobe. I am trying to find out what they know that we do not know.