Jar­gon buster

NPhoto - - Gear Zone -

Ul­tra­sonic mo­tor

Un­like ring-type ul­tra­sonic aut­o­fo­cus that’s based on two large elec­tro­mag­netic rings, mo­tor-driven ul­tra­sonic aut­o­fo­cus re­lies on a small mo­tor and as­so­ci­ated drive­shafts and gear­wheels.

Full-time ma nual over­ride

Ad­vanced aut­o­fo­cus sys­tems, in­clud­ing ring-type ul­tra­sonic, en­able you to man­u­ally over­ride the aut­o­fo­cus set­ting with­out need­ing to switch to MF (Man­ual Fo­cus) mode.

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