I was at a skating rink... a notoriously difficult place to shoot because it is dark and the kids are moving around faster than they can run... so you have auto focus issues, low light issues, and if you use flash, you have issues with it looking like you used flash (red eye, and the line of light that reflects off their skin and clothes).
Well yesterday I was at the rink and I was using the 5D mkiii, a 70-200mm f/2.8L IS mkii, and a 580exii speedlite. For the pictures I'm going to show now, I was shooting at iso 2500, f2.8, and 1/1250th of a second shutter speeds. I was half bouncing light off of the rink's ceiling and half bouncing it off the built in card of the 580.
Honestly... the results weren't that awful, but when you go into 1:1, it just looks GRAINY. I know the mkiii is really good in low light and the grain is tolerable at iso 6400 with post production, but the attached are the raw shot before noise reduction luminance and sharpening, etc. So I realize that a meatloaf doesn't look tasty before it is cooked... but I suppose I just would expect at 2500 less grain immediately out of the camera. Am I just being naive and looking at the meal before it was cooked (and subsequently complaining that I'm not eating that) or maybe I should have used different settings...
Honestly, any feedback would be welcome.
(and the photos are heavily cropped to get them into the 1:1 ratio, and also because my wife doesn't like photos of my daughter existing in cyberspace... so no offense to any of yall... and I realize that the images themselves aren't very captivating, but it is the grain that I more concerned about).