Hi all, Just recieved my vivitar 28mm f2.5 today and took some shots with it and I'm a bit unsure if it's a dud. My first legacy lens is OM 50mm f1.8 and I really pleased with that, but the vivitar seems to be really bad,soft and lacks contrast. It's the len that look like it has a hood attached. I've already ordered a lens hood, will that help much? Here is shoot at f2.8 <a href="http:[email protected] "500" height="375" alt="083"></a> I think at f4 <a href="http:[email protected]View attachment 188733 "500" height="375" alt="034"></a> Compared to OM 50mm F1.8(at f2.8) <a href="http:[email protected]"500" height="375" alt="254"></a> I'm thinking of getting an OM 28mm f2.8 now as vivitar is abit of let down. IS the OM 28mm f2.8 just as sharp as the OM 50mm f1.8 wide open ?