10.5 is Leopard,10.6 is Snow Leopard, 10.7 is Lion, and 10.8 is Mountain Lion.
You should just ask him for the version number. Once that is known, then you can decide what needs to be downloaded.
To answer the other part of your question, you can download older versions of the DNG Converter from http://www.adobe.com/downloads/updates.html
The question is, though, what version of the DNG Converter is needed to handle the files. Since you didn’t specify the extract models of cameras, that is impossible to verify, yet.
You can look at this list of cameras and ACR version numbers to get an idea what the minimum DNG Converter download that would be needed to support them, and then check the system requirements of that particular DNGC version:
Finally, Adobe is still offering the PS-CCLR subscription for $10/month (in the US). It was supposed to expire on Dec 3rd, and then Dec 8th, but it’s still there, now without a specific expiration, but that doesn’t mean the offer won’t expire. $120/year for the PS-CCLR subscription is about as much as it used to cost to upgrade PS-non-extended every 18 months, so if your friend can afford $10/month they can have the latest PS and run it on up to two computers.
now without a specific expiration,
Current expiry date for the Photoshop Photography Package is Dec 31, 2013.
I don't know why Adobe doesn't stop playing cat-and-mouse with the expiry date and make the offer permanent.
Thanks for the answers. The specific OS is MAC OS X vsn 10.6.8 so I'm
assuming the current version of the DNG converter (8.2) will run on it. The
cameras are Nikon D3200 and Sony Cybershot DSC-RX10. The Nikon is on the
list at the URL you provided but the Sony does not seem to be there yet.
So, let's just deal with the Nikon for now.
Am I correct that the current version of the DNG converter (8.2) is
compatible with Mac OS X 10.6.8, and that DNG files created from it will
open OK with the version of ACR that comes with CS3? I'm a bit hazy on
whether or not older versions of ACR will have trouble with newer versions
of DNG files.
Thanks -- Dan
I rarely use the dng converter,but since it costs nothing to try, you can see if CS3's ACR can parse the 8.2 dng.
DNG Converter has compatibility options in the Preferences dialog. If you have CS3, you should set your Compatibility popup menu option to "Camera Raw 4.6 and later". Then the resulting DNGs will be able to be read in ACR 4.6 for CS3.