NEX-6 major design flaw

Started Jun 2, 2013 | Discussions thread
AllMankind Contributing Member • Posts: 564
Re: NEX-6 major design flaw

DtEW wrote:

What you are ranting about is called pre-focus, and is a feature common to many large-sensor MILCs.  This feature is aimed at solving (or merely lessening) a common problem of large-sensor MILCs: that focus speed is relatively slow compared to a dSLR.  The idea of pre-focus is that the camera periodically focuses on any scene in front of it, without any request from you.  This is so that the moment you frame your shot and select a particular focus point, it is not caught completely flat-footed but is in-fact already rather close to that focus point.

This is NOT a feature.  This IS a design flaw.

What Sony should have done is given us a menu item to turn this 'pre-focus' off.  Some people, such as myself and obviously the OP, do not want the camera continuously AFing.  We want the camera to AF only when the shutter is half pressed, at least for AF-S.

It should also be noted, that with on-sensor PDAF, the speed to acquire focus would/should not be enhanced much (if at all) by pre-focus.

I also do not know of any other mirrorless camera/system that does this pre-focus.

Would it have been so difficult for Sony to have given us a menu option?

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