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Speed flash anomaly
I am relatively new to photography but I am learning fast. I have just bought a Nissin Di622 speedlite for my Canon 40D. I set it to TTL to try it out indoors and found that on Av mode it selected a 2 sec exposure, which I thought was rather long; When I switch to Auto it set an exposure of just 1/60 sec: both identical settings and shots, both came out ok, histograms similar. When in Av I was shooting in RAW, does this make such a big difference.
I would appreciate any input to this as I am quite confused.
Grahame
nbgemini
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