Last year we shot my daughter with Santa at F2/800iso/1-125 with my 56mm and 23mm. Since then I've gotten a 17-70mm 2.8 that I thought might be easier, but the 2.8 I'm thinking might not let in enough light. I don't think I can go slower on the shutter and upping iso might not be optimal. Thoughts?
I have some pretty big jpeg files and none come near 128MB. Are you able to open and view the file?