Adaptions of the Reciprocal 'Rule' for modern sensors are all very nice, but in many cases have to be ignored. For example, panning with a propellor-powered aircraft needs a shutter down around 1/60 or 1/80 for a nice prop disk. On a 400mm+ lens that's well in 'violation' of the rule.
In those cases even on a tripod I appreciate Mode 2 IS to iron-out vertical wobbles and let me try to concentrate on holding the focus point on one feature.
I can't imagine buying any lens without IS!
In those cases even on a tripod I appreciate Mode 2 IS to iron-out vertical wobbles and let me try to concentrate on holding the focus point on one feature.
I can't imagine buying any lens without IS!
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