Lens For Canon Rebel T3

Sandy asks…How do I get the most from my built-in flash?I have a canon eos rebel t3 (not 3ti) and my girlfriend's sister asked me to take some pictures for her daughter's baptism, she's paying me something. At first I wanted to say no because I'm just a fairly decent amateur but she insisted. I'm fairly good in Lightroom 4 so post-prod is not my problem, however I haven't been able to afford a nice flash, I have to stick to my built in flash and I was wondering if someone could give me some

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