Ok, here is a recent indoor photo I took with some seamless paper. You can see the shadow under his little ears which is caused from my flash. My issue is I cannot meter correctly indoors, without my shutter speed being so low that I can't even get a clear shot (like 10-20). Of course, that is just not near fast enough for a moving toddler! So, I must use my flash and then I get shadows! My question, do I need to get a lens with a higher f stop so I can get a higher ss? Or is there anything else I can do with my lens that only goes to f4? Thanks in advance!!