Hi , I just purchased a 7d mark ii to shoot my kid's sports, I'm fairly new at photography but have some experience. The focus system is fantastic. I took pictures at my son's roller hockey game under poor lighting conditions. I noticed even at ISO 3200 the pictures are noisy when viewed at 100% . In retrospect should I have shot at lower speed? Maybe shoot at 500 to lower the ISO. Appreciate any advice.
The first picture was taken with my 24-70mm lens and the next ones with my 70-200. I did notice that the 70-200 look better at higher ISO. Is there anything I can do to reduce noise in poor lighting conditions and get sharper images?