Back when I had it, cameras were not super high resolution so a little vibration would not be seen on a 10 mp camera but it was big and heavy so best on a tripod. For a 10:1 zoom, the IQ was pretty good. I'm sure my R5 would show up the flaws. I've attached a mfd photo taken of a lily in my yard. This was in 2011 with a 1D MK III. Its 1/2000 shutter speed f/5.6 and ISO 1600 so not ideal exposure. I wondered if I re-edited it with a more recent editor if it would be a little better. Si, I used the new Litghtroom auto selection of subject masks to select the flower and the background and edit them separately to make the flower pop a lot more. I was then able to easily use heavy NR on the background. I'm not sure if its better but it does have more contrast, I kinda over did it, I'd tone it down a little but don't have time to fool with it more.