Now the revelation: most of the photographs I have shown so far taken with the Sony A350 and the 50mm F1.8 were not sharp, there is a strong possibility that they were not in 100% accurate focus. I am starting to suspect there might be front or back-focusing issue.
When the perfect sweetspot was hit, the level of details the 50mm F1.8 in combination with then class leading 14.2 Megapixels image sensor in the A350 can be quite impressive.
Take a look at the image below, I clearly remembered I set the focus on the word "D600". This was taken in a series of three photos, and the other two photos were soft, and obviously out of focus.
Nick Wade willingly became my victim.
100% crop from the previous image.
Not bad, not bad at all. And the images were not even sharpened, but you can evidently see traces of in camera sharpening happening. The purple fringing shows the out of focus zone in front of the focal plane, while the green fringing shows behind. Sometimes CA can be useful to indicate the lens behavior.
I think I should test this 50mm F1.8 lens further. It does seem to be quite a decent lens, and very worth its low price tag too. As I have mentioned, it takes time to know your gear. I just thought perhaps I have jumped into conclusion too early that at F1.8 wide open, the 50mm was soft, in fact, looking at the photographs above, I am surprised to find that was not the case.