Using my new A7III I had been shooting JPEG with no problem. Today, I set a couple of shots on the Menu to RAW and LR had an error message which stated the two shots could not be imported. In the past, using a Cann DSLR, I always chose RAW. For this Sony should I select Compressed RAW instead? And will that work?
No!
The issue has nothing to do with whether the raw images are compressed or not...
There are two solutions to this problem:
1. update Lightroom to a version that does recognise the raw files from a Sony A7 III; or
2. download the latest version of Adobe DNG converter from Adobe and use it to convert those raw images into DNG files that will then be recognised by Lightroom.
Why is this necessary?
Simple put, every time a new camera is put into the market-place a new raw file is also introduced that requires that the makers of raw file converters, such as Lightroom or Capture One etc, reverse engineer these new raw file types and then modify their software to recognise the new file types.
However, they ONLY update the newest versions of their software, currently Lightroom 7.
(Adobe DNG converter would also be updated.)
Since the newest version of Lightroom is the equivalent of version 7.4, your Lightroom version is waaaay off the crest of the wave.
Lightroom 7.3 (at least) is required to recognise raw file from the Sony A7 III...
These newer versions of Lightroom are only available as a subscription, not as a standalone, once bought, version.
Adobe DNG converter is free.
My guess is that you would be better off just upgrading to the newest version of Lightroom...
Tony Jay