Hello Clyde and company,
The "blurr" is the effect of JPEG compression. Compression is equal to corruption when JPEG touches deep red colours, and that's what happened with the STX Ace 5. The presentation picture actually is a downsized (800x557 pix ) copy. I found out that it is compressed to a ridiculous 54,5 kB (the same copy is used for the superfluous "Focus" presentation). I downloaded the original and reduced it myself to 800x557 pix. With my usual JPEG compression this yielded an 98,3 kB file, with less artefacts and improved sharpness. With still less compression and a 175 kB file the result is quite acceptable. I don't use Photoshop, so I can't give you the settings I used with this experiment.
It's clear that this recently-installed prgramme squeezes the juice out of any picture when the JPEG compression is set at "highest", which I think it is. That's a shame, because it's the first impression that counts. Please, do away with this programme, which I hated from the onset.
I detected two artefacts also seen by others which have to do with cameras and lenses. Chromatic aberration is best seen in the top left corner around the letters UTS. It has to do with the phenomenon that different frequencies (colours) of the "white" sunlight are broken under different angles when they hit the glass surface. You can observe this with any cheap magnifying glass. Lens makers have overcome this problem long ago, so chromatic aberration is now usually associated with "digital". Not really, but with the advent of digital SLR cameras it seems that zoom lenses have become "standard", and a zoom lens is still a package of contradictions and compromises. I'm amazed what these light-weight zooms can do, but they can't beat a fixed-focus lens.
The "halo" phenomenon as seen around the foremast is probably a shortcoming of the sensor of the camera. In the early digital cameras this was a nasty artefact, called "blooming". It seemed that the picture elements of the sensor could be overloaded with information, spilling the overflow to its neigbours. This could be the cause of the yellow band in the foremast and the purple around the tank here. Chromatic (lens) aberration typically occurs in the corners of a picture, and I know it only as a shift in the red and green areas, so it may be the sensor. Photoshop now offers "Lens corrections". Chromatic aberration is tackled with red/cyan and blue/yellow colour slides. It's worth a try to see what it does with purple and yellow "blooming". I understand that this only works with RAW files, but this may be a false impression.
Good luck!
Anton
I now see that Nikon's editing tool Capture NX features a Color Aberration Control. It also works with JPEG and TIFF files.