Hi everybody. I was shooting some pictures of my newborn baby yesterday. He was shooting with canon 60d and I used my gh3. I have 12-35 lens as well as a 45-200. And now here is a question. I am wondering why when i use my 12-35 and for example i set up aperture to f22 it works exactly the same as on aperture 2,8. I mean the sound (speed) of opening aperture is fast the same. But when i use 45-200 if i set up f22 it looks like it is much slower. On the dslr like 60d it sound also the same, i mean fast the same on all f. Hopefully you know what i mean.