Howard there may some things you can do when you take the pictures. I cannot see the Exif data so a guess as to what could be changed cannot be made.To help out there it would be nice to see the EXIF data on the photos. It could be my reader does not read Sony files. Try to post photos with the exif intact. Some software will strip the data when editing the photos. If the software strips the data then you can put it in the post manually.
Another option might be a different noise reduction software program. Here are a couple of your photos after a quick and painless effort with Lightroom.
It is hard to see and work with such small files and with the full size file the results might be different but I think you can see the possibilities with a different software program.
original

Lightroom

original

lightroom
