After testing a day of my A850 with the Tamron 28-75, I think the issue is probably the copy of lens I got is not sharp (centre) at F2.8, but once stopped down a little to F3.2, the centre gets really sharp and once hit F4, its razor sharp.
Maybe my expectation is a little too high? Cos my 17-50 is already quite sharp at F2.8 of all focal length.
Anyway, with the new 24MP beast, I can really see all the details on my screen like never before!!! OMG, I should have bought this camera long time ago!
I think next week Sitex should be a good venue for me to think of upgrading my oldie laptop (Still Pentium dual core btw) to the latest powerful processor with a adequate graphic card and RAM, not to forget must have really lots of HDD space....a simple xtra fine jpeg can go up till 20mb per file....:bigeyes:
But then, its worth it, A850 has really OPENED up my eyes to the wonderful details that FF can bring.....
:thumbsup::thumbsup::thumbsup: