Hi guys,
A little over a year ago I acquired the 70-200 2.8 IS II "dream lens" and was kinda disappointed since it wasn't so exceptional as expected.
The images were ok but were not justifying the 2000 Euro Price Tag. But I needed the range and thought that poor images are more likely to result from a user error than from a highly regarded lens so I kept the lens and tried to improve. Soon I found out that this lens is a beast to handle on a 5d2, since its really difficult to focus at 200 2.8 with the outer focus points in low light, even in fairly good light. So I found a workaround and soon I was able to get really good concert and event shots with this lens on a 5d2 even with some more static sport as table tennis. But flowers and wildlife were still unacceptable.
Being desperate I diged out my first DSLR lens, a sigma 18-200 DC Sony a mount mounted it on a Sony alpha 300 and compared it to the 70-200 2.8 II on a 40D both at f/6.3. Surprisingly the sigma was much better!
I couldn't believe my eyes so I sent the lens to cps and the changed pretty much the entire inside of the lens, some optical elements, the barrel and the IS. After that it was on pair with the sigma but I am still not convinced that I have to spend nearly 2000 Euro on a lens to get equivalent IQ as a 120 Euro lens. Initially I intendet to use the 70-200 with extenders to get some tele for occasional use but currently i assume that would be a waste of money.
So I am asking you for help: what am I doing wrong?
For you to judge I took some images to illustrate the issue: https://skydrive.live.com/redir?resid=9A24089482BEBF7A!1547
The strange glow is the issue that bothers me. I know that these are macro lens subjects and usually I use my 100L for that but sometimes I just don't have it with me, so the 70-200 has to fill the gap.
Thank you in advance
and sorry for bad language 
I follow this forum for quite a while and you are great guys
A little over a year ago I acquired the 70-200 2.8 IS II "dream lens" and was kinda disappointed since it wasn't so exceptional as expected.
The images were ok but were not justifying the 2000 Euro Price Tag. But I needed the range and thought that poor images are more likely to result from a user error than from a highly regarded lens so I kept the lens and tried to improve. Soon I found out that this lens is a beast to handle on a 5d2, since its really difficult to focus at 200 2.8 with the outer focus points in low light, even in fairly good light. So I found a workaround and soon I was able to get really good concert and event shots with this lens on a 5d2 even with some more static sport as table tennis. But flowers and wildlife were still unacceptable.
Being desperate I diged out my first DSLR lens, a sigma 18-200 DC Sony a mount mounted it on a Sony alpha 300 and compared it to the 70-200 2.8 II on a 40D both at f/6.3. Surprisingly the sigma was much better!
I couldn't believe my eyes so I sent the lens to cps and the changed pretty much the entire inside of the lens, some optical elements, the barrel and the IS. After that it was on pair with the sigma but I am still not convinced that I have to spend nearly 2000 Euro on a lens to get equivalent IQ as a 120 Euro lens. Initially I intendet to use the 70-200 with extenders to get some tele for occasional use but currently i assume that would be a waste of money.
So I am asking you for help: what am I doing wrong?
For you to judge I took some images to illustrate the issue: https://skydrive.live.com/redir?resid=9A24089482BEBF7A!1547
The strange glow is the issue that bothers me. I know that these are macro lens subjects and usually I use my 100L for that but sometimes I just don't have it with me, so the 70-200 has to fill the gap.
Thank you in advance
I follow this forum for quite a while and you are great guys