Have been doing macro 1:1 with a Canon 100mm macro lens (not L) for a while. My results are good when using a tripod or when I have a lucky hand. After only a few hours with this flash, all I can say is AMAZING! This flash will change my macro photography. Punches immediately transitioned from speed luck to simple luck. I am currently using it with a Canon MP-E 65mm lens and it fits perfectly. expensive but worth every penny if you love macro photography.
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