Hi Olympus EU has a 100€ cash back promotion on Oly 75-300mm mk2 so I decided to buy one and keep it, if it is any better than my cheapo 40-150mm f4-5.6 R lens. After all, I could score myself lots of mm's for just 360€ after the 100€ cash back. So this is only the day one of my comparison, but the results are really promising. I like the small size of the 40-150, but IMO the 75-300 is not that much bigger, although quite a bit heavier. The main reason I never really liked the 40-150 was its poor contrast and lots of CA. Sharp it is, but it has poor contrast, especially when the light source is behind the subject. So that was the scenario I had to test first. Below are the results. These are both taken at 150mm and with the same exposure. I think the 75-300 is a keeper!