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Showing results for tags 'sigma 100-400'.
I've been shooting with Sigma 100-400 for couple of months. As others have mentioned I find that this lens punches way above its price point in terms of IQ. Also due to its compact size and weight I find myself bringing this lens along far more often than I've ever done with a lens with 400mm reach. Today I decided to test the lens to try to answer a couple of questions I had about the lens: 1. I was finding some inconsistency in sharpness even when shooting on tripod. There's been speculation in various posts that this could be due to mechanical shutter. I wanted to test this o