EXCERPT page containing first few paragraphs. 2021-06-13 01:57:50
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The Tamron SP 15-30mm f/2.8 Di VC USD offers image stabilization via a small switch on the lens. Used on a tripod, the results can be disastrous, as this series shows. The damage can be severe, or subtle; it appears to be related to shutter speed.
But for starters, why would any camera attempt to stabilize the image at 4 second and longer exposures? Or even one second? Is there a real world case in which it even makes sense and in which the camera could guarantee better results? It makes no sense unless the stabilization is extremely precise and accurate, and also free of hysteresis.
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